4,4'-Oxydianiline (p-aminophenyl ether) and its salts
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
- 4,4'-Oxydianiline (p-aminophenyl ether) and its salts
- CAS
- 101-80-4
- 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 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 · 1 with specific conditions
Open supporting recordBrazil
1 linked record · 1 with specific conditions
Open supporting recordIndia
1 linked record · 1 with specific conditions
Open supporting recordVerified chemistry for CAS 101-80-4
4,4'-Diaminodiphenyl Ether
- IUPAC name
- 4-(4-aminophenoxy)aniline
- Molecular formula
- C12H12N2O
- Molecular weight
- 200.24 g/mol
- Exact mass
- 200.094963011 Da
- Monoisotopic mass
- 200.094963011 Da
- XLogP3
- 1.4
- Topological polar surface area
- 61.3 Ų
- Molecular complexity
- 162.0
- Formal charge
- 0
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 3
- Rotatable bonds
- 2
- Heavy atoms
- 15
- Covalent units
- 1
Names and synonyms reported to PubChem
16 more reported names
External database identifiers
- ChEBI:CHEBI:34384
- ChEMBL:CHEMBL354663
- EPA DTXSID:DTXSID0021094
- PubMed:22751261
- PubMed:22435290
- PubMed:22233638
- PubMed:22160135
- PubMed:21860525
- PubMed:21754434
- PubMed:21754087
- PubMed:21752381
- PubMed:21730539
- PubMed:21582198
- PubMed:21577659
- PubMed:21202654
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D pharmacophore features
- 7
- 3D rings
- 2
- 3D hydrophobes
- 0
- 3D acceptor features
- 1
- 3D donor features
- 2
- 3D anionic centres
- 0
- 3D cationic centres
- 2
- 3D conformers
- 3
- Effective 3D rotors
- 2.0
Machine-readable structure identifiers
- SMILES
C1=CC(=CC=C1N)OC2=CC=C(C=C2)N- InChI
InChI=1S/C12H12N2O/c13-9-1-5-11(6-2-9)15-12-7-3-10(14)4-8-12/h1-8H,13-14H2- InChIKey
HLBLWEWZXPIGSM-UHFFFAOYSA-N
Evidence from additional scientific databases
EMBL-EBI ChEBI
4-Aminophenyl ether
- Formula
- C12H12N2O
- Average mass
- 200.241 g/mol
- Monoisotopic mass
- 200.09496 Da
- Formal charge
- 0
- aromatic ether — is a (CHEBI:35618)
- aromatic ether — is a (CHEBI:35618)
Additional curated names
Cross-references from this source
- CAS: 101-80-4 — KEGG COMPOUND
- MANUAL_X_REF: C14759 — KEGG COMPOUND
Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2015-01-19. Retrieved: 2026-08-31. Open source record
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Autoignition Temperature: 914 °F (NTP, 1992) Source: CAMEO Chemicals
- Autoignition Temperature: 490 °C Source: Hazardous Substances Data Bank (HSDB)
- Boiling Point: Sublimes (NTP, 1992) Source: CAMEO Chemicals
- Boiling Point: >300 °C Source: Hazardous Substances Data Bank (HSDB)
- Color/Form: Colorless crystals Source: Hazardous Substances Data Bank (HSDB)
- Flash Point: 426 °F (NTP, 1992) Source: CAMEO Chemicals
- Flash Point: 219 °C Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Flash Point: 219 °C (closed cup) Source: Hazardous Substances Data Bank (HSDB)
- LogP: log Kow = 1.36 Source: Hazardous Substances Data Bank (HSDB)
- Melting Point: 367 to 369 °F (NTP, 1992) Source: CAMEO Chemicals
- Melting Point: 189 °C (decomposes Source: Hazardous Substances Data Bank (HSDB)
- Melting Point: 187 °C Source: PAC Chemical Database, U.S. Department of Energy
- Physical Description: 4,4'-diaminodiphenyl ether appears as odorless colorless crystals or an odorless fine, beige powder. (NTP, 1992) Source: CAMEO Chemicals
- Physical Description: Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Colorless solid; [HSDB] Colorless crystalline solid; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: less than 0.1 mg/mL at 59 °F (NTP, 1992) Source: CAMEO Chemicals
- Solubility: Insoluble in water, benzene, carbon tetrachloride and ethanol; soluble in acetone Source: Hazardous Substances Data Bank (HSDB)
- Vapor Pressure: 10 mmHg at 464 °F ; 15 mmHg at 482 °F (NTP, 1992) Source: CAMEO Chemicals
- Vapor Pressure: 0.00000436 [mmHg] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Vapor Pressure: 0.0000003 [mm Hg] @25 °C Source: PAC Chemical Database, U.S. Department of Energy
- IARC Carcinogenic Agent: 4,4'-Diaminodiphenyl ether Source: International Agency for Research on Cancer (IARC)
- IARC Carcinogenic Classes: Group 2B: Possibly carcinogenic to humans Source: International Agency for Research on Cancer (IARC)
- IARC Monographs: Volume 29: (1982) Some Industrial Chemicals and Dyestuffs; Volume Sup 7: Overall Evaluations of Carcinogenicity: An Updating of IARC Monographs Volumes 1 to 42, 1987; 440 pages; ISBN 92-832-1411-0 (out of print) Source: International Agency for Research on Cancer (IARC)
- Publication Year: 1987 Source: International Agency for Research on Cancer (IARC)
- Evaluation Year: 1987 Source: International Agency for Research on Cancer (IARC)
- Substance: 4,4'-Oxydianiline Source: NTP Technical Reports
- NTP Technical Report: TR-205: Bioassay of 4,4'-Oxydianiline for Possible Carcinogenicity (CASRN 101-80-4) (1980 ) Source: NTP Technical Reports
- Peer Review Date: 02/15/80 Source: NTP Technical Reports
- Conclusion for Male Rat: Clear Evidence Source: NTP Technical Reports
- Conclusion for Female Rat: Clear Evidence Source: NTP Technical Reports
- Conclusion for Male Mice: Clear Evidence Source: NTP Technical Reports
- Conclusion for Female Mice: Clear Evidence Source: NTP Technical Reports
- First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Ap Source: CAMEO Chemicals
- Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- GHS Hazard Statements: H301: Toxic if swallowed [Danger Acute toxicity, oral]; H311: Toxic in contact with skin [Danger Acute toxicity, dermal]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; H340: May cause genetic defects [Danger Germ cell mutagenicity]; H350: May cause cancer [Danger Carcinogenicity]; H361f ***: Suspected of damaging fertility [Warning Reproductive toxicity]; H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Precautionary Statement Codes: P203, P261, P262, P264, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P316, P318, P321, P330, P361+P364, P391, P403+P233, 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: Warning Source: NITE-CMC
- GHS Hazard Statements: H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]; H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
- Precautionary Statement Codes: P203, P273, P280, P318, P391, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- Signal: Danger Source: NITE-CMC
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]; H350: May cause cancer [Danger Carcinogenicity]; H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]; H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
- Precautionary Statement Codes: P203, P260, P261, P264, P270, P272, P273, P280, P301+P317, P302+P352, P318, P319, P321, P330, P333+P317, P362+P364, P391, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H351: Suspected of causing cancer [Warning Carcinogenicity]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure] Source: NITE-CMC
- Precautionary Statement Codes: P203, P260, P261, P264, P270, P272, P280, P301+P317, P302+P352, P318, P319, P321, P330, P333+P317, P362+P364, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Environmental Bioconcentration: An estimated BCF of 4 was calculated in fish for bis(4-aminophenyl) ether(SRC), using a log Kow of 1.36(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). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 450(SRC), determined from a structure estimation method(2), indicates that bis(4-aminophenyl) ether is expected to have moderate mobility in soil(SRC). However, aromatic amines are expected to bind strongly to humus or organic matter in soils due to the high reactivity of the aromatic amino group(3,4), suggesting that mobility may be much lower in some soils(SRC). Volatilization of bis(4-aminophenyl) ether from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.5X10-11 atm-cu m/mole(SRC), using a fragment constant estimation method(5). bis(4-Aminophenyl) ether is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 2.5X10-6 mm Hg(SRC), determined from a fragment constant method(6). Biodegradation data were not available(SRC, 2009). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 450(SRC), determined from a structure estimation method(2), indicates that bis(4-aminophenyl) ether is 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 1.5X10-11 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). According to a classification scheme(5), an estimated BCF of 4(SRC), from its log Kow of 1.36(6) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is low(SRC). bis(4-Aminophenyl) ether is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(3). Biodegradation data were not available(SRC, 2009). 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), bis(4-aminophenyl) ether, which has an estimated vapor pressure of 2.5X10-6 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase bis(4-aminophenyl) ether 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 1.8 hours(SRC), calculated from its rate constant of 2.1X10-10 cu cm/molecule-sec at 25 °C(3). Particulate-phase bis(4-aminophenyl) ether may be removed from the air by wet or dry deposition(SRC). bis(4-Aminophenyl) ether does not contain chromophores that absorb at wavelengths >290 nm(4) and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)
- Industry Uses: Monomers Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Used as a chemical intermediate for polyimide and poly(ester-imide) resins; [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: Chem int for polyimide and poly(ester-imide) resins Source: Hazardous Substances Data Bank (HSDB)
- Uses: Substance listed with specific concentration in tattoo ink and/or permanent make up according to EU Commission Regulation 2020/2081. The concentration limit (by weight) is 0.0005%. Source: NORMAN Suspect List Exchange
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 1160
- Source record ID
II-1160- 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 “4,4'-Oxydianiline (p-aminophenyl ether) and its salts” 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
4,4'-Oxydianiline (p-aminophenyl ether) and its salts. ASEAN Annex II, reference 1160. ASEAN. Source version 2026-1. CosIng Checker regulatory record: https://cosingchecker.com/regulations/asean/records/3301/
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