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.
Definition
US FDA substance register · UNII BGG1Y1ED0Y · registered name TRICLOCARBAN · single chemical substance
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.
Source: PubChem
Triclocarban is the substituted carbanilide that conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Restricted
- Taiwan · United Kingdom
- Allowed preservative
- Taiwan · United Kingdom
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)
Argentina · Brazil
- Field of application and/or use : in rinse-off products
- Maximum concentration permitted at final product : 1.5%
- Other limitations and requirements : Purity criteria: 3, 3 ', 4, 4'-Tetrachloroazobenzene that 1ppm or less; 3, 3', 4, 4'-Tetrachloroazoxybenzene 1ppm less than or equal
- Maximum concentration permitted at final product : 0.2%
- Other limitations and requirements : Purity criteria: 3,3 ', 4,4'-tetrachloro-azobenzene less than 1 ppm 3,3', 4,4'-tetrachloro-azoxybenzene less than 1 ppm
ASEAN
- Field of application and/or use : Rinse-off products
- Maximum authorised concentration in the finished cosmetic product : 1.5 %
- Other limitations and requirements : Purity criteria: 3,3’,4,4’-Tetrachloroazobenzene ≤1 ppm 3,3’,4,4’-Tetrachloroazoxybenzene ≤1 ppm For purposes other than inhibiting the development of microorganisms in the product. This purpose has to be apparent from the presentation of the product As a preservative, see Annexe VI, Part 1, No 23
Japan
- Maximum amount per 100 g (Cosmetics not used for mucosa and not to be washed away) : 0.30 g
- Maximum amount per 100 g (Cosmetics that may be used for mucosa) : 0.30 g
China
- Maximum concentration : 0.2%
South Korea
- ∙ 0.2%
European Union
- Product Type, body parts : Rinse-off products
- Maximum concentration in ready for use preparation : 1.5%
- Other : Purity criteria: 3, 3', 4, 4'-Tetrachloroazobenzene<=1ppm; 3, 3', 4, 4'-Tetrachloroazoxybenzene<=1ppm. For purposes other than inhibiting the development of micro-organisms in the product. This purpose has to be apparent from the presentation of the product
- Maximum concentration in ready for use preparation : 0.2%
- Other : Purity criteria: 3, 3', 4, 4'-Tetrachloroazobenzene
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex III (restricted substances), entry 100 · maximum concentration 1.5% · applies to Rinse-off products
EU Cosmetics Regulation, Annex V (allowed preservatives), entry 23 · maximum concentration 0,2 % · applies to All cosmetic products, with the exception of mouthwash.
Restriction III/100 V/23
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name トリクロカルバン: 本品は、次の化学式で表されるカルバニリド誘導体である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 101-20-2
- CAS No.chemical registry number
- 1322-40-3
- EC No.EU chemical inventory number
- 202-924-1
- DTXSIDUS EPA chemical ID
- DTXSID4026214
- DTXCIDUS EPA compound ID
- DTXCID906214
- IUPAC
- N-(4-Chlorophenyl)-N'-(3,4-dichlorophenyl)urea
- Molecular formula
- C13H9Cl3N2O
- Molecular weight
- 315.58 g/mol
Measured properties
- Appearance
- Triclocarban appears as fine white plates or white powder. (NTP, 1992) · White solid, [Merck Index]
- Odour
- Slight, characteristic odor
- Boiling point
- 250 °C at 97.8 kPa (733 mm Hg)
- Melting point
- 482 to 493 °F (NTP, 1992) · 491.2- 493
- Solubility
- less than 1 mg/mL at 79 °F (NTP, 1992) · Insoluble
- Density
- 0.336 g/cu cm at 20 °C
- Stability
- Stable under recommended storage conditions.
- Dissociation constant
- pKa = 12.7
- Melting/freezing point
- 255.2~256 ℃
- Vapour pressure
- (3.61E-09mmHg @ 25 °C)
- Water solubility
- 0.0237 ㎎/ℓ
- n-Octanol/water partition coefficient (Kow)
- 4.9
- Molecular weight
- 315.59
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 9 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Deodorizer3
- Preservative3
- Biocide2
- Pharmaceutical (EPA)1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
3 skin studies and 2 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 5 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: according to - Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to - Moderate or Mild Irritation
eye irritation: in vivo · Screening · other guideline: as below according to
Source: US EPA CompTox dashboard
Related literature
- 1678Triclosan, triclocarban, metabolism and microbiome: a randomized, cross-over study · 2014
- Triclocarban Disrupts Hepatic Lipid Homeostasis and Promotes Endoplasmic Reticulum Stress in Mice: A Multiomics Investigation. · 2025
- Variability of Urinary Concentrations of Phenols, Parabens and Triclocarban during Pregnancy in First Morning Voids and Pooled Samples · 2021
- The fate of triclocarban in activated sludge and its influence on biological wastewater treatment system. · 2020
- High‐performance liquid chromatographic determination of triclosan and triclocarban in cosmetic products · 2012
Linked databases 27
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- China inventory of existing ingredients (IECIC)
- EU allowed preservatives (Annex V)
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3 4
- NIST Chemistry WebBook
- PubChem 2
- Taiwan FDA cosmetic ingredients 2
- Taiwan FDA cosmetic regulations
- Tlooto literature search 2 3 4 5
- UK cosmetics regulations (OPSS) 2
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Chinese