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Annex III Entry 100 04/11/2010

TRICLOCARBAN

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (13)

TRICLOCARBAN is listed in Annex III and may only be used under the conditions shown in this record. Maximum concentration in this record: 1.5%.

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Restricted substance— Annex III, EU Regulation 1223/2009
Max conc.: 1.5%
Entry: 100

Chemical identity and properties

PubChem 2D chemical structure for CAS 101-20-2
CAS 101-20-2PubChem CID 7547

Triclocarban

Triclocarban is a member of the class of phenylureas that is urea substituted by a 4-chlorophenyl group and a 3,4-dichlorophenyl group at positions 1 and 3 respectively. It has a role as an antimicrobial agent, a xenobiotic, an antiseptic drug, a disinfectant and an environmental contaminant. It is a member of phenylureas, a dichlorobenzene and a member of monochlorobenzenes. It is functionally related to a 1,3-diphenylurea. — ChEBI

IUPAC name
1-(4-chlorophenyl)-3-(3,4-dichlorophenyl)urea
Molecular formula
C13H9Cl3N2O
Molecular weight
315.6 g/mol
Exact mass
313.978046 Da
XLogP3
5.3
Topological polar surface area
41.1 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

3,4,4'-TRICHLOROCARBANILIDECutisanProcuteneSolubacterCusiterGenofaceTrilocarbanUrea, N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)-
16 more reported names
3,4,4'-TrichlorodiphenylureaTrichlocarbanTriclocarbanumN-(4-Chlorophenyl)-N'-(3,4-dichlorophenyl)ureaNSC-72005TCC Soap3,4,4'-trichloro carbanilide1-(3',4'-Dichlorophenyl)-3-(4'-chlorophenyl)ureaENT 26925TCC (soap bacteriostat)Carbanilide, 3,4,4'-trichloro-CP 78416N-(3,4-Dichlorophenyl)-N'-(4-chlorophenyl)ureaBGG1Y1ED0YEPA Pesticide Chemical Code 027901CHEBI:48347
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:48347

triclocarban

A member of the class of phenylureas that is urea substituted by a 4-chlorophenyl group and a 3,4-dichlorophenyl group at positions 1 and 3 respectively.

Formula
C13H9Cl3N2O
Average mass
315.587 g/mol
Monoisotopic mass
313.97805 Da
Formal charge
0
  • phenylureas — is a (CHEBI:134043)
  • dichlorobenzene — is a (CHEBI:23697)
  • monochlorobenzenes — is a (CHEBI:83403)
  • disinfectant — has role (CHEBI:48219)
  • antiseptic drug — has role (CHEBI:48218)
  • xenobiotic — has role (CHEBI:35703)
  • antimicrobial agent — has role (CHEBI:33281)
  • environmental contaminant — has role (CHEBI:78298)
  • 1,3-diphenylurea — has functional parent (CHEBI:41320)
  • disinfectant — has role (CHEBI:48219)
  • antiseptic drug — has role (CHEBI:48218)
  • xenobiotic — has role (CHEBI:35703)
  • antimicrobial agent — has role (CHEBI:33281)
  • environmental contaminant — has role (CHEBI:78298)
  • phenylureas — is a (CHEBI:134043)
  • dichlorobenzene — is a (CHEBI:23697)
  • monochlorobenzenes — is a (CHEBI:83403)
Additional curated names
1-(4-chlorophenyl)-3-(3,4-dichlorophenyl)urea1-(3',4'-dichlorophenyl)-3-(4'-chlorophenyl)urea3,4,4'-trichloro carbanilide3,4,4'-trichlorocarbanilide3,4,4'-trichlorodiphenylureaN-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)ureaNSC-72005TCC
Cross-references from this source
  • CAS: 101-20-2 — NIST Chemistry WebBook
  • CAS: 101-20-2 — ChemIDplus
  • REGISTRY_NUMBER: 2814890 — Reaxys
  • MANUAL_X_REF: 3630 — DrugCentral
  • MANUAL_X_REF: D06223 — KEGG DRUG
  • MANUAL_X_REF: DB11155 — DrugBank
  • MANUAL_X_REF: GB769273 — Patent
  • MANUAL_X_REF: Triclocarban — Wikipedia
  • MANUAL_X_REF: US2818390 — Patent

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2018-12-13. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match7547

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
  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H400 (96.8%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410 (100%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P273, P391, 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 185 reports by companies from 6 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: Warning Source: Hazardous Substances Data Bank (HSDB)
  • GHS Hazard Statements: 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: Hazardous Substances Data Bank (HSDB)
  • Precautionary Statement Codes: P273, P391, and P501 (click each P-code to see the statement) Source: Hazardous Substances Data Bank (HSDB)
  • Toxicity Summary: IDENTIFICATION AND USE: Triclocarban (TCC) is a solid. It has anti-microbial activity and is used globally in a wide range of personal cleansing products that include deodorant soaps, detergents, cleansing lotions, and wipes. In North America, TCC is used exclusively as an antimicrobial and preservative in bar and liquid soaps and body washes. HUMAN STUDIES: Studies in humans indicate no evidence of skin sensitization or severe irritation. Petrolatum (0.1mL) containing 0, 1, 3, 6, and 9% TCC was applied continuously for 21 days on ten males. Minimal skin irritation was observed with the 9% concentration. There was no evidence of skin sensitization in volunteers tested with TCC (1.5% and 10%). The potential impact of exposure to TCC on fetal abnormalities was studied in 39 pregnant women diagnosed with fetal or post-birth abnormalities. Significantly increased levels of TCC were detected in maternal sera from mothers with abnormal births. TCC was also studied for its endocrine-disrupting effects. TCC exerted estrogenic activities by inducing luciferase activities in an ER reporter gene assay, promoting the proliferation of the MCF-7 cells, up-regulating the expression of pS2 and dow Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Bioconcentration: BCF values for triclocarban in rice fish (Oryzias latipes), exposed for 28 days to 20 and 2.0 ug/L were 80 and 81, respectively(1). A log BCF of 2.86 (BCF = 724) was measured using medaka (Oryzias latipes) exposed to 20 ug/L of triclocarban for 24 hours(2). According to a classification scheme(3), these BCF values suggest bioconcentration in aquatic organisms is moderate to high(SRC). Triclocarban BAFs in algae of 1600 to 2700 from three locations downstream of a waste water treatment plant in Pecan Creek, TX(4). Triclocarban bioaccumulation peaked at day 5 of a 56 day study of worms (Lumbriculus variegatus) in soil containing 22.4 ug/g dry weight triclocarban(5). Body burdens of 25 and 133 ng/g wet wt, corresponding to a biota soil accumulation factor range of 0.22 to 0.7, were reported after 28 days in earthworm (Eisenia foetida) present in 2 soils (Ashkum heavy-textured silty clay loam; Chelsea light-textured fine sand). The soils were amended with municipal (Chicago, IL) biosolids containing an average triclocarban concentration of 9200 ng/g dry wt, resulting in an average trace level soil concentration of 9 ng/g dry wt(6). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), Koc values of 12,000(2) to 71,687(3) indicate that triclocarban is expected to be immobile in soil(SRC). Volatilization of triclocarban from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 4.5X10-11 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Triclocarban is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 3.6X10-9 mm Hg at 25 °C(SRC), determined from a fragment constant method(5). Utilizing the Japanese MITI test, 1% of the Theoretical BOD was reached in 4 weeks(6) indicating that biodegradation is not an important environmental fate process in soil(SRC). However using a continuous flow activated sludge, 50-100% degradation was obtained in 12 weeks, following lag periods of up to two weeks(7). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Dewatered municipal biosolids (DMBs) were applied to a field at a rate of approximately 22 Mg dw/ha in October 2008. Pharmaceuticals and personal care products (PPCPs) were monitored in groundwater, tile drainage, soil, DMB aggregates incorporated into the soil post-land application, and in the grain of wheat grown on the field for a period of approximately 1 year following application. Over 80 PPCPs were analyzed in the source DMB. PPCPs selected for in-depth monitoring included ... triclocarban .... PPCPs in tile were observed twice, approximately 3 weeks and 2 months post-application. Of all PPCPs measured in tile drainage, only carbamazepine, ibuprofen, acetaminophen, triclosan, triclocarban, venlafaxine, and citalopram were detected (5-74 ng/L). PPCPs were not detected in groundwater >2 m depth below the soil surface, and concentrations above detection limits at 2 m depth were only observed once just after the first rain event post-application. In groundwater, all compounds found in tile, except carbamazepine, acetaminophen and citalopram, were detected (10-19 ng/L). PPCPs were detected in DMB aggregates incorporated in soil up to 1 year post-application, wit Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), Koc values of 12,000(2) to 71687(3) indicate that triclocarban is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(4) based upon an estimated Henry's Law constant of 4.5X10-11 atm-cu m/mole(SRC), developed using a fragment constant estimation method(5). According to a classification scheme(6), BCF values of 80(7) to 724(8) suggest the potential for bioconcentration in aquatic organisms is moderate to high(SRC). Utilizing the Japanese MITI test, 1% of the Theoretical BOD was reached in 4 weeks(7) indicating that biodegradation is not an important environmental fate process in water(SRC). However using a continuous flow activated sludge, 50-100% degradation was obtained in 12 weeks, following lag periods of up to two weeks(9). 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), triclocarban, which has an estimated vapor pressure of 3.6X10-9 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist solely in the particulate phase in the ambient atmosphere. Particulate-phase triclocarban may be removed from the air by wet and dry deposition(SRC). Triclocarban contains chromophores that absorb at wavelengths >290 nm(3) and, therefore, may be susceptible to direct photolysis by sunlight(SRC). 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
EMBL-EBI ChEBIExact match2026-08-31
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.

Record details

Maximum concentration

1.5%

Product type

Rinse-off products

Other restrictions

Purity criteria:
3, 3', 4, 4'-Tetrachloroazobenzene

INCI glossary name

TRICLOCARBAN

Chemical name

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (13)

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

SCCS opinions

Identified ingredients

Key data

CAS
101-20-2
EC
202-924-1
Annex
III
Entry number
100

Inventory links for TRICLOCARBAN

Inventory Restriction reference
Ref 38662

TRICLOCARBAN

CAS: 101-20-2
EC: 202-924-1
Annex III 257
Shared product type

LAURETH-9

CAS: 3055-99-0
EC: 221-284-4

What Annex III means for TRICLOCARBAN

TRICLOCARBAN is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.

When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.

This record is linked to 1 CosIng inventory ingredient for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Ensure formulation concentration does not exceed: 1.5%
  • Confirm product type compatibility: Rinse-off products
  • Document conditions of use in the Product Information File (PIF).

Frequently asked questions

TRICLOCARBAN is listed in Annex III of EU Regulation 1223/2009 as a restricted substance. It may only be used under the conditions specified in the entry, including any maximum concentration, product type limitation and required warning statements shown above.

CAS 101-20-2 is the unique numerical identifier assigned to TRICLOCARBAN by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

The maximum concentration of 1.5% applies to the concentration of the substance in the ready-to-use cosmetic product. When the substance is supplied as part of a blend or mixture, the calculation must account for the contribution of all sources in the formulation. The combined concentration must not exceed the stated limit.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex III record TRICLOCARBAN

This page summarizes one Annex III record for TRICLOCARBAN from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex III conditions for TRICLOCARBAN, but confirm any final regulatory decision against the current official annex wording and source files.

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