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ProhibitedBinding ruleGBOriginal is EnglishOfficial-source import checked

Piperazine

The consolidated GB Cosmetics Regulation lists this record in Annex II.

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Regulatory decision and full conditions

Status
Prohibited
Legal role
Binding rule
Regulatory summary
The consolidated GB Cosmetics Regulation lists this record in Annex II.
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
Piperazine
CAS
110-85-0
EC
203-808-3
Identity mapping
standalone:official_gb_annex
Search this identity across the siteCAS 110-85-0EC 203-808-3

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.

6 market datasets
PubChem 2D chemical structure for CAS 110-85-0
CAS 110-85-0PubChem CID 4837

Verified chemistry for CAS 110-85-0

Piperazine

IUPAC name
piperazine
Molecular formula
C4H10N2
Molecular weight
86.14 g/mol
Exact mass
86.084398327 Da
Monoisotopic mass
86.084398327 Da
XLogP3
-1.5
Topological polar surface area
24.1 Ų
Molecular complexity
26.0
Formal charge
0
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Rotatable bonds
0
Heavy atoms
6
Covalent units
1

Names and synonyms reported to PubChem

Diethylenediamine1,4-DiazacyclohexaneHexahydropyrazinePiperazinAntirenPiperazidineDiethyleneimineDispermine
16 more reported names
LumbricalPipersolEraverm1,4-PiperazineWurmirazinUvilonPiperazine, anhydrousWorm-A-Ton1,4-DiethylenediaminePyrazine hexahydrideHexahydro-1,4-diazinePyrazine, hexahydro-Piperazine (USP)NSC-4741RTM4PAL0VPiperazine [USP]
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D pharmacophore features
5
3D rings
1
3D hydrophobes
0
3D acceptor features
0
3D donor features
2
3D anionic centres
0
3D cationic centres
2
3D conformers
1
Effective 3D rotors
1.2
Machine-readable structure identifiers
SMILES
C1CNCCN1
InChI
InChI=1S/C4H10N2/c1-2-6-4-3-5-1/h5-6H,1-4H2
InChIKey
GLUUGHFHXGJENI-UHFFFAOYSA-N

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match4837

Attributed physical-property, hazard, environmental and use annotations.

  • 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. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) shou Source: CAMEO Chemicals
  • ERG2024, Guide 153 (Piperazine): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
  • Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]; H361fd: Suspected of damaging fertility; Suspected of damaging the unborn child [Warning Reproductive toxicity] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P203, P233, P260, P261, P264, P271, P272, P280, P284, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P318, P321, P333+P317, P342+P316, P362+P364, P363, P403, 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
  • Note: This chemical does not meet GHS hazard criteria for 0.1% (1 of 768) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H228 (34.6%): Flammable solid [Danger Flammable solids]; H314 (99.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H317 (99.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H318 (39.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]; H334 (99.7%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]; H361 (77.3%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]; H361fd (23.4%): Suspected of damaging fertility; Suspected of damaging the unborn child [Warning Reproductive toxicity] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P260, P261, P264, P264+P265, P271, P272, P280, P284, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P321, P333+P317, P342+P316, P362+P364, P363, P370+P378, P403, 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 768 reports by companies from 32 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 1 of 768 reports by companies.; There are 31 notifications provided by 767 of 768 reports by companies with hazard statement code(s).; 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: H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]; 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]; H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P233, P260, P261, P264, P264+P265, P270, P271, P272, P273, P280, P284, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P319, P321, P333+P317, P342+P316, P362+P364, P363, P403, P403+P233, 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]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]; H371: May cause damage to organs [Warning 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
  • NFPA Health Rating: 2 - Materials that, under emergency conditions, can cause temporary incapacitation or residual injury. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 2 - Materials that must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. Materials would not under normal conditions form hazardous atmospheres with air, but under high ambient temperatures or under moderate heating could release vapor in sufficient quantities to produce hazardous atmospheres with air. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Instability Rating: 0 - Materials that in themselves are normally stable, even under fire conditions. Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Bioconcentration: BCF values less than 0.3 to 0.9 and less than 3.9 were measured using orange-red killifish (Oryzias latipes) which were exposed to 1 and 0.1 ppm, respectively, over an 8-week period(1). According to a classification scheme(2), these BCF values suggest 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 3.6(SRC), determined from a log Kow of -1.50(2) and a regression-derived equation(3), indicates that piperazine is expected to have very high mobility in soil(SRC). Measured pKa values of 9.73 (first nitrogen) and 5.33 (second nitrogen)(4) indicate that piperazine will exist primarily in cation form in the environment and cations generally adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5). Volatilization of piperazine from moist soil surfaces is not expected to be an important fate process(SRC) since cations do not volatilize. Piperazine is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 0.16 mm Hg(6). Piperazine may biodegrade in soil based on greater than 51% biodegradation measured after 28 days in a artificial river water total organic carbon (TOC) die-away test; however, only 1.4% degradation occurred after 14 days during a MITI screening test(7,8). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 3.6(SRC), determined from a log Kow of -1.50(2) and a regression-derived equation(3), indicates that piperazine is not expected to adsorb to suspended solids and sediment(SRC). However, measured pKa values of 9.73 (first nitrogen) and 5.33 (second nitrogen)(4) indicate piperazine will exist almost entirely in the cation form at pH values of 5 to 9 and cations adsorb to suspended solids and sediment more strongly than their neutral counterparts(5). Volatilization of piperazine from water surfaces is not expected to be an important fate process since cations do not volatilize. According to a classification scheme(6), a BCF range of less than 0.3-0.9(7) suggests the potential for bioconcentration in aquatic organisms is low(SRC). Piperazine may biodegrade in water based on greater than 51% biodegradation measured after 28 days in a artificial river water total organic carbon (TOC) die-away test; however, only 1.4% degradation occurred after 14 days during a MITI screening test(7,8). 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), piperazine, which has a vapor pressure of 0.16 mm Hg at 20 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase piperazine 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 2.3 hours(SRC), calculated from its rate constant of 1.7X10-10 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Piperazine does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(4). 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
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

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
Great Britain Cosmetics Regulation — consolidated Annexes II–VI and amendments
Source reference
GB Cosmetics Regulation, Annex II, entry 1504
Source record ID
II-1504
Source version
2026-08-15
Source language
English
Translation status
Original is English
Effective date
2026-08-15
Source updated
2026-08-19
Snapshot checked
2026-08-30 04:51 UTC
Validation method
legislation.gov.uk XML table parse; {'II': 1758, 'III': 326, 'IV': 154, 'V': 57, 'VI': 34}
SHA-256
e3a386d950f54c6e7a7f9e784d1bd46e52de725137e89d5630709824475215d8

Registered dataset notes

Dataset coverage
Complete consolidated GB Annexes II–VI, with later amendments versioned separately
Authority note
Binding GB schedules and versioned amendments to retained Regulation 1223/2009; applies to England, Wales and Scotland, not Northern Ireland
Source licence
Open Government Licence v3.0 / Crown copyright
Attribution
Contains public sector information licensed under the Open Government Licence v3.0.
Inspect the exact official sourceRegulator guidance

How this record fits the market dataset

2329
current Great Britain records
1758
records marked Prohibited
2329
records from this source version
2015
market records with CAS identity

Status distribution

Permitted list with conditions: 245Prohibited: 1758Restricted: 326

Condition text is present on 517 of 2329 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.

Great Britain market context

Complete consolidated annex dataset

Coverage version: GB retained Regulation 1223/2009 schedules, effective 15 August 2026

Current consolidated Annexes II–VI for England, Scotland and Wales.

Verification checklist

  1. Confirm INCI/CAS/EC identity.
  2. Review every current GB Annex II–VI match.
  3. Check commencement dates and later statutory instruments.
  4. Verify SCPN, responsible-person, safety-report and labelling duties.

Official market sources

Verification workflow and record completeness

Before using this result in a compliance decision

  1. Confirm that “Piperazine” and every CAS/EC identifier refer to the material in your supplier specification.
  2. Confirm INCI/CAS/EC identity.
  3. Review every current GB Annex II–VI match.
  4. Check commencement dates and later statutory instruments.
  5. Verify SCPN, responsible-person, safety-report and labelling duties.
  6. Document the source version and recheck the regulator before manufacture, notification or market placement.

Fields available in this record

  • Official substance nameAvailable
  • CASAvailable
  • ECAvailable
  • Separate condition textNot present in source row
  • Effective dateAvailable
  • Snapshot hash and methodAvailable

Questions this page answers

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.

A prohibition entry may contain no separate condition text because the regulatory outcome is the prohibition itself. No annex match is not approval and does not cover Northern Ireland, which follows the applicable EU framework.

The record cites GB Cosmetics Regulation, Annex II, entry 1504, source version 2026-08-15. Open the official source.

No. CAS helps resolve identity, but jurisdictions can classify the same substance differently and can apply different product scopes, limits, warnings and transition dates.

Stable citation

Piperazine. GB Cosmetics Regulation, Annex II, entry 1504. Great Britain. Source version 2026-08-15. CosIng Checker regulatory record: https://cosingchecker.com/regulations/gb/records/5859/

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 Great Britain

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: 2026-08-15
  • Effective date: 2026-08-15

What it does not prove

No annex match is not approval and does not cover Northern Ireland, which follows the applicable EU framework.

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 source

FDA 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 source

ILO/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 source

Japan 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 source

NIOSH 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 source

OECD 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 source

US EPA CompTox CTX APIs

API key required for import

DTXSID 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