Tetraethyl pyrophosphate; TEPP-(ISO)
ASEAN Annex II lists this record among substances prohibited in cosmetic products. Member-state transition rules and deviations still require local verification.
Regulatory decision and full conditions
- Status
- Prohibited
- Legal role
- Binding rule
- Regulatory summary
- ASEAN Annex II lists this record among substances prohibited in cosmetic products. Member-state transition rules and deviations still require local verification.
- Conditions and restrictions
- A prohibition entry may contain no separate condition text because the regulatory outcome is the prohibition itself. Open the cited source and apply the market-wide requirements below.
Substance identity
- Official source name
- Tetraethyl pyrophosphate; TEPP-(ISO)
- CAS
- 107-49-3
- EC
- Not supplied in this source row
- Identity mapping
- standalone:official_asean_record
Cross-market snapshot for this identity
Exact linked records currently present in this site. An absent market means no imported exact match, not permission to use the substance.
European Union
1 linked record
Open supporting recordGreat Britain
1 linked record
Open supporting recordCanada
1 linked record
Open supporting recordNew Zealand
1 linked record
Open supporting recordASEAN
Current record1 linked record
Open supporting recordChina
1 linked record · 1 with specific conditions
Open supporting recordSouth Korea
1 linked record
Open supporting recordBrazil
1 linked record · 1 with specific conditions
Open supporting recordIndia
1 linked record · 1 with specific conditions
Open supporting recordSaudi Arabia
1 linked record
Open supporting recordVerified chemistry for CAS 107-49-3
Tetraethyl Pyrophosphate
TEPP is an organic diphosphate. — ChEBI
- IUPAC name
- diethoxyphosphoryl diethyl phosphate
- Molecular formula
- C8H20O7P2
- Molecular weight
- 290.19 g/mol
- Exact mass
- 290.06842697 Da
- Monoisotopic mass
- 290.06842697 Da
- XLogP3
- 0.4
- Topological polar surface area
- 80.3 Ų
- Molecular complexity
- 246.0
- Formal charge
- 0
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 7
- Rotatable bonds
- 10
- Heavy atoms
- 17
- Covalent units
- 1
Names and synonyms reported to PubChem
16 more reported names
External database identifiers
- ChEBI:CHEBI:82149
- ChEMBL:CHEMBL293787
- EPA DTXSID:DTXSID3034957
- PubMed:22163587
- PubMed:20872688
- PubMed:20391100
- PubMed:20095145
- PubMed:19435147
- PubMed:19379510
- PubMed:18468398
- PubMed:16720085
- PubMed:16481169
- PubMed:15908205
- PubMed:11926204
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D pharmacophore features
- 2
- 3D rings
- 0
- 3D hydrophobes
- 0
- 3D acceptor features
- 2
- 3D donor features
- 0
- 3D anionic centres
- 0
- 3D cationic centres
- 0
- 3D conformers
- 10
- Effective 3D rotors
- 10.0
Machine-readable structure identifiers
- SMILES
CCOP(=O)(OCC)OP(=O)(OCC)OCC- InChI
InChI=1S/C8H20O7P2/c1-5-11-16(9,12-6-2)15-17(10,13-7-3)14-8-4/h5-8H2,1-4H3- InChIKey
IDCBOTIENDVCBQ-UHFFFAOYSA-N
Evidence from additional scientific databases
EMBL-EBI ChEBI
TEPP
- Formula
- C8H20O7P2
- Average mass
- 290.189 g/mol
- Monoisotopic mass
- 290.06843 Da
- Formal charge
- 0
- organic diphosphate — is a (CHEBI:62889)
- organic diphosphate — is a (CHEBI:62889)
- 12383012 Source: PubMed
Additional curated names
Cross-references from this source
Mapped by: Exact CAS cross-reference in the ChEBI compound record. Retrieved: 2026-08-31. Open source record
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 280 °F at 2.3 mmHg (EPA, 1998) Source: CAMEO Chemicals
- Boiling Point: 82 °C @ 0.05 mm Hg; 124 °C @ 1.1 mm Hg; 138 °C @ 2.3 mm Hg Source: Hazardous Substances Data Bank (HSDB)
- Boiling Point: 280 °F at 2.3 mmHg Source: Occupational Safety and Health Administration (OSHA)
- Boiling Point: 310 °C @760 [mm Hg] Source: PAC Chemical Database, U.S. Department of Energy
- Boiling Point: Decomposes Source: The National Institute for Occupational Safety and Health (NIOSH)
- Color/Form: Mobile liquid Source: Hazardous Substances Data Bank (HSDB)
- Color/Form: Colorless to amber liquid (Note: A solid below 32 degrees F). Source: Hazardous Substances Data Bank (HSDB)
- Density: 1.185 at 68 °F (EPA, 1998) - Denser than water; will sink Source: CAMEO Chemicals
- Density: 1.185 @ 20 °C/4 °C Source: Hazardous Substances Data Bank (HSDB)
- Density: Density: about 1.2 @ 25 °C; dark amber-colored mobile liquid /Technical product/ Source: Hazardous Substances Data Bank (HSDB)
- Density: 1.18 g/cm³ Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Density: Relative density of the vapour/air-mixture at 20 °C (air = 1): 1.00 Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Density: 1.185 Source: Occupational Safety and Health Administration (OSHA)
- Density: 1.2 @25 °C Source: PAC Chemical Database, U.S. Department of Energy
- Density: 1.19 Source: The National Institute for Occupational Safety and Health (NIOSH)
- Flash Point: >110 °C c.c. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- LogP: 2.94 Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Melting Point: 32 °F (EPA, 1998) Source: CAMEO Chemicals
- Melting Point: Solid below 32 °F Source: Hazardous Substances Data Bank (HSDB)
- Melting Point: 32 °F Source: Occupational Safety and Health Administration (OSHA)
- Melting Point: 32 °F Source: The National Institute for Occupational Safety and Health (NIOSH)
- Odor: Agreeable odor Source: Hazardous Substances Data Bank (HSDB)
- Odor: AROMATIC Source: Hazardous Substances Data Bank (HSDB)
- Odor: Faint, fruity odor Source: Hazardous Substances Data Bank (HSDB)
- Physical Description: Tetraethyl pyrophosphate is an organic phosphate pesticide which acts as an inhibitor of cholinesterase, and as such it is highly toxic by all routes of exposure. It is a water-white to amber liquid, depending on purity. Tetraethyl pyrophosphate is soluble in water and is slowly decomposed by water. It is toxic by inhalation and by skin absorption. It may be found as a liquid or as a dry mixture where the liquid is absorbed onto a dry carrier. Source: CAMEO Chemicals
- Physical Description: Colorless to amber liquid with a faint, fruity odor. [insecticide] [Note: A solid below 32 degrees F.]; [NIOSH] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: COLOURLESS HYGROSCOPIC LIQUID. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Physical Description: Colorless to amber liquid with a faint, fruity odor. Source: Occupational Safety and Health Administration (OSHA)
- Physical Description: Colorless to amber liquid with a faint, fruity odor. [insecticide] [Note: A solid below 32 °F.] Source: The National Institute for Occupational Safety and Health (NIOSH)
- Refractive Index: Index of refraction: 1.4196 @ 20 deg C/D Source: Hazardous Substances Data Bank (HSDB)
- Solubility: Miscible (decomposes) (NTP, 1992) Source: CAMEO Chemicals
- Solubility: Miscible with glycerol, ethylene glycol, toluene, propylene glycol, acetone, methanol, benzene, carbon tetrachloride, xylene, ethanol, chloroform Source: Hazardous Substances Data Bank (HSDB)
- Solubility: Miscible in water Source: Hazardous Substances Data Bank (HSDB)
- Solubility: Solubility in water: good Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Solubility: Miscible Source: The National Institute for Occupational Safety and Health (NIOSH)
- Vapor Pressure: 0.00047 mmHg at 86 °F (EPA, 1998) Source: CAMEO Chemicals
- Vapor Pressure: 0.00015 [mmHg] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Vapor Pressure: 2.60X10-4 mm Hg at 25 °C (extrapolated from 4.7X10-4 mm Hg at 30 °C) Source: Hazardous Substances Data Bank (HSDB)
- Vapor Pressure: Vapor pressure, Pa at 20 °C: 2 Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Vapor Pressure: 0.0002 mmHg Source: Occupational Safety and Health Administration (OSHA)
- Vapor Pressure: 0.00047 [mm Hg] @25 °C Source: PAC Chemical Database, U.S. Department of Energy
- Vapor Pressure: 0.0002 mmHg Source: The National Institute for Occupational Safety and Health (NIOSH)
- Exposure Routes: The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Exposure Routes: inhalation, skin absorption, ingestion, skin and/or eye contact Source: The National Institute for Occupational Safety and Health (NIOSH)
- First Aid: Warning: Effects may be delayed up to 12 hours. Caution is advised.; Note: TEPP is a cholinesterase inhibitor.; Signs and Symptoms of TEPP Exposure: Acute exposure to TEPP may produce the following signs and symptoms: sweating, pinpoint pupils, blurred vision, headache, dizziness, profound weakness, muscle spasms, seizures, and coma. Mental confusion and psychosis may occur. Excessive salivation, nausea, vomiting, anorexia, diarrhea, and abdominal pain may also occur. The heart rate may decrease following oral exposure or increase following dermal exposure. Chest pain may be noted. Hypotension (low blood pressure) may be observed, although hypertension (high blood pressure) is not uncommon. Respiratory symptoms include dyspnea (shortness of breath), pulmonary edema, respiratory depression, and respiratory paralysis.; Emergency Life-Support Procedures: Acute exposure to TEPP may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheet Source: CAMEO Chemicals
- First Aid: (General first aid procedures); Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.; Skin: Water flush immediately - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.; Breathing: Respiratory support; Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately. Source: The National Institute for Occupational Safety and Health (NIOSH)
- Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- GHS Hazard Statements: H300: Fatal if swallowed [Danger Acute toxicity, oral]; H310: Fatal in contact with skin [Danger Acute toxicity, dermal]; H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Precautionary Statement Codes: P262, P264, P270, P273, P280, P301+P316, P302+P352, P316, P321, P330, P361+P364, P391, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H300 (100%): Fatal if swallowed [Danger Acute toxicity, oral]; H310 (100%): Fatal in contact with skin [Danger Acute toxicity, dermal]; H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P262, P264, P270, P273, P280, P301+P316, P302+P352, P316, P321, P330, P361+P364, P391, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 42 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: NITE-CMC
- GHS Hazard Statements: H300: Fatal if swallowed [Danger Acute toxicity, oral]; H310: Fatal in contact with skin [Danger Acute toxicity, dermal]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H330: Fatal if inhaled [Danger Acute toxicity, inhalation]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure] Source: NITE-CMC
- Precautionary Statement Codes: P260, P262, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P308+P316, P316, P319, P320, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- GHS Hazard Statements: H300: Fatal if swallowed [Danger Acute toxicity, oral]; H310: Fatal in contact with skin [Danger Acute toxicity, dermal]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H330: Fatal if inhaled [Danger Acute toxicity, inhalation]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure] Source: NITE-CMC
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Target Organs: Eyes, respiratory system, central nervous system, cardiovascular system, gastrointestinal tract, blood cholinesterase Source: The National Institute for Occupational Safety and Health (NIOSH)
- Environmental Bioconcentration: An estimated BCF of 3.2 was calculated for tetraethyl pyrophosphate(SRC), using an estimated log Kow of 0.45(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC), provided the compound is not altered physically or chemically once released into the environment. Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 2.2(SRC), determined from a water solubility of 1.00X10+6 mg/L(2) and a regression-derived equation(3), indicates that tetraethyl pyrophosphate is expected to have very high mobility in soil(SRC). Volatilization of tetraethyl pyrophosphate from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 2.2X10-10 atm-cu m/mole(SRC) derived from its vapor pressure, 2.60X10-4 mm Hg at 25 °C(2), and water solubility(2). Tetraethyl pyrophosphate is not expected to volatilize from dry soil surfaces(SRC) based upon its vapor pressure(2). Biodegradation data for this substance were not located in the literature. Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 2.2(SRC), determined from a water solubility of 1.00X10+6 mg/L(2) and a regression-derived equation(3), indicates that tetraethyl pyrophosphate is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 2.2X10-10 atm-cu m/mole(SRC), derived from its vapor pressure, 2.60X10-4 mm Hg at 25 °C(2), and water solubility(2). Using this Henry's Law constant and an estimation method(3). According to a classification scheme(4), an estimated BCF of 3.2(SRC), from an estimated log Kow(5) and a regression-derived equation(6), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Biodegradation data for this substance were not located in the literature. Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), tetraethyl pyrophosphate, which has a vapor pressure of 2.60X10-4 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase tetraethyl pyrophosphate is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 5.0 hours(SRC), calculated from its rate constant of 7.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: Aquatic or Terrestrial Fate: ... Rapidly hydrolyzed in the presence of moisture. Source: Hazardous Substances Data Bank (HSDB)
- Sources/Uses: Commercially available as dust, concentrate, or solution in methyl chloride to kill aphids, spiders, mites, mealy bugs, leafhoppers, and thrips; [ACGIH] Used on vegetable and fruit crops, it is one of the first organophosphate insecticide developed and has been largely replaced by newer products. [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Farming (Pesticides) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: For tetraethyl pyrophosphate (USEPA/OPP Pesticide Code: 079601) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./ Source: Hazardous Substances Data Bank (HSDB)
- Uses: Insecticide-acaricide; used on three vegetable crops and three fruit crops; one of first organic phosphate insecticides in the US (1946); largely replaced by other products. Source: Hazardous Substances Data Bank (HSDB)
- Uses: ... /It is/ used in the control of some aphids, spider mites, mealybugs, and leafhoppers and thrips. Source: Hazardous Substances Data Bank (HSDB)
- Uses: Contact poison ... very effective against active stages of mites and other soft bodied insects. Source: Hazardous Substances Data Bank (HSDB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | Exact match | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Official source and provenance
- Registered source
- ASEAN Cosmetic Directive annexes
- Source reference
- ASEAN Annex II, reference 276
- Source record ID
II-276- Source version
- 2026-1
- Source language
- English
- Translation status
- Original is English
- Source updated
- 2026-06-22
- Snapshot checked
- 2026-08-30 04:44 UTC
- Validation method
- pdfplumber ruled-table extraction with per-annex reviewed counts
- SHA-256
ffad59f6c01a92c82042c54203ee14969425c2a82bd04c2f4012ff82513e69f1
Registered dataset notes
- Dataset coverage
- Banned, restricted and positive-list substances under the harmonised ASEAN framework
- Authority note
- Regional directive; member-state transitions and deviations still require local verification
How this record fits the market dataset
Status distribution
Condition text is present on 462 of 2224 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.
ASEAN market context
Complete regional annex dataset
Coverage version: ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026
Annexes II, III, IV, VI and VII covering prohibited, restricted and positive-list substances.
Verification checklist
- Search all ACD annexes by name and identifiers.
- Apply product type, maximum level and warning conditions.
- Confirm the target member state's adoption and transition date.
- Complete the local notification and responsible-company requirements.
Official market sources
- ASEAN Cosmetic Directive annexesRegional directive; member-state transitions and deviations still require local verification
Verification workflow and record completeness
Before using this result in a compliance decision
- Confirm that “Tetraethyl pyrophosphate; TEPP-(ISO)” and every CAS/EC identifier refer to the material in your supplier specification.
- Search all ACD annexes by name and identifiers.
- Apply product type, maximum level and warning conditions.
- Confirm the target member state's adoption and transition date.
- Complete the local notification and responsible-company requirements.
- Document the source version and recheck the regulator before manufacture, notification or market placement.
Fields available in this record
- Official substance nameAvailable
- CASAvailable
- ECNot supplied
- Separate condition textNot present in source row
- Effective dateNot supplied
- Snapshot hash and methodAvailable
Questions this page answers
Stable citation
Tetraethyl pyrophosphate; TEPP-(ISO). ASEAN Annex II, reference 276. ASEAN. Source version 2026-1. CosIng Checker regulatory record: https://cosingchecker.com/regulations/asean/records/2418/
Cite the regulator as the legal authority. This page is a structured evidence index and verification aid, not a substitute for the official text or professional legal assessment.
Interpretation and limits for ASEAN
This official record identifies the substance as prohibited for cosmetic use in the stated market scope.
Do not rely on a formulation containing this identity until the cited source, effective date and exact substance match have been verified.
How to interpret the legal role
The cited row forms part of a binding rule or legally incorporated list for this market.
Evidence on this page
- Recorded outcome: Prohibited
- Legal role: Binding rule
- Source version: 2026-1
What it does not prove
Regional annex coverage does not replace member-state implementation dates, notifications or national deviations.
Further authoritative substance research
These sources can add identity, safety, exposure or hazard context. A link is not evidence that the database contains this exact substance, and none of these sources overrides the market decision above.
Cosmetic Ingredient Review safety assessments
Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents
Independent expert review considered by FDA; not a government approval or binding market rule
Research this identity at the sourceFDA Global Substance Registration System
UNII identifiers, preferred names, substance types, codes and public substance relationships
Identity registry only; UNII availability does not imply FDA review or approval
Research this identity at the sourceILO/WHO International Chemical Safety Cards
Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals
International occupational chemical-safety reference; not cosmetic-use approval
Research this identity at the sourceJapan NITE-CHRIP
Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information
Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules
Research this identity at the sourceNIOSH Pocket Guide to Chemical Hazards
REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals
US occupational-health guidance and limits; not a cosmetic ingredient decision
Research this identity at the sourceOECD eChemPortal
Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records
Discovery gateway; each linked authority remains responsible for its data
Research this identity at the sourceUS EPA CompTox CTX APIs
API key required for importDTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data
Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality
Research this identity at the source