Is HC Brown No. 1 safe in cosmetics?
HC Brown No. 1 has a safety rating of "POOR" in our database. EU status: prohibited. US status: permitted.
Poor
Cosmetic Ingredient
HC Brown No. 1
Also known as: Benzenaminium, 3-[2-[4-[2-[diamino(2-phenyldiazenyl)phenyl]diazenyl]-1-naphthalenyl]diazenyl]-N,N,N-trimethyl-, chloride (1:1)
INCI: HC BROWN NO. 1
HC Brown No. 1 (CAS 83803-98-9) is a cosmetic cosmetic ingredient functioning as Hair dyeing — semi-permanent direct dye (brown). EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 83803-98-9 →
Auto-generated CPSR Part A draft with source citations
Function
Hair dyeing — semi-permanent direct dye (brown)
Safety Rating
POOR
Chemistry & Identifiers
IUPAC Name
[3-[[4-[(3,4-diamino-2-phenyldiazenylphenyl)diazenyl]naphthalen-1-yl]diazenyl]phenyl]-trimethylazanium chloride
InChIKey
NBGWWMTXJHLJIM-UHFFFAOYSA-M
Regulatory Status
EU EU Status
prohibited
US US Status
permitted
US Notes
Permitted under coal-tar hair dye exemption (FD&C Act 601(a))
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for HC Brown No. 1.
Calculate MoS for your specific formulation with the MoS Calculator.
EU CosIng Annex Listing
European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.
Annex II — Prohibited
Ref: 1298
(EC) 2009/1223
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
SA Saudi SFDA (II - Prohibited)
BRIN Brazil/India Cosmetics
Brazil: Prohibited
India: Prohibited (GNRAS)
Additional Jurisdictional Restrictions (1)
| Jurisdiction | Status | Max % | Product Type |
|---|---|---|---|
| KR | prohibited | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Regulatory List Membership (2)
EU Banned in Cosmetics
EU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for HC Brown No. 1.
Regulatory Flags
eu_banned_cosmetics
eu_cosing_listed
Known Synonyms
Benzenaminium, 3-[2-[4-[2-[diamino(2-phenyldiazenyl)phenyl]diazenyl]-1-naphthalenyl]diazenyl]-N,N,N-trimethyl-, chloride (1:1)
Chemical Function
Dye
Regulatory Lists
banned; Europe; Personal care
Australian Status
AICIS status: listed
Frequently Asked Questions
Is HC Brown No. 1 allowed in the EU?
HC Brown No. 1 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does HC Brown No. 1 do in cosmetics?
HC Brown No. 1 functions as: Hair dyeing — semi-permanent direct dye (brown). It is classified as a cosmetic ingredient in our database. CAS number: 83803-98-9.
Compliance Tools
Check HC Brown No. 1 compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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