Solvent Red 3

Also known as: 1-Naphthalenol, 4-[(4-ethoxyphenyl)azo]-, 1-Naphthalenol, 4-[2-(4-ethoxyphenyl)diazenyl]-, EINECS 229-439-8, UNII-XNW2E18207

INCI: CI 12010 (SOLVENT RED 3)

Solvent Red 3 (CAS 6535-42-8) is a cosmetic cosmetic ingredient functioning as Colorant — oil-soluble azo dye (red-brown). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 6535-42-8 →

Auto-generated CPSR Part A draft with source citations
Function
Colorant — oil-soluble azo dye (red-brown)
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
C18H16N2O2
MW
292.3 g/mol
PubChem CID
81021
IUPAC Name
4-[(4-ethoxyphenyl)diazenyl]naphthalen-1-ol
InChIKey
JSEYDVLGSMLKDL-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Not FDA-listed as an approved color additive for cosmetics

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Solvent Red 3.

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: 1344
(EC) 2013/344
Annex IV — Permitted Colorants
Product type: Red

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)
ASEAN Cosmetic Directive (II)
Ref: 1344
BRIN Brazil/India Cosmetics
Brazil: Prohibited
India: Prohibited (GNRAS)
India: Permitted Colorant

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Endocrine Disruptors
Potential endocrine disrupting compound
Source: NORMAN Suspect List Exchange

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Dye Fragrance
Regulatory List Membership (4)
EU Banned in Cosmetics EU Regulated in Personal Care IFRA Fragrance Transparency List EU CosIng Cosmetics Ingredient Database

Expert Verdict

Expert safety assessment and concern-level summary for Solvent Red 3.

Regulatory Flags

colorant eu_banned_cosmetics ifra_fragrance eu_cosing_listed

Known Synonyms

1-Naphthalenol, 4-[(4-ethoxyphenyl)azo]- 1-Naphthalenol, 4-[2-(4-ethoxyphenyl)diazenyl]- EINECS 229-439-8 UNII-XNW2E18207

Chemical Function

Dye Fragrance

Regulatory Lists

IFRA Transparency Europe; Personal care banned; Europe; Personal care

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Solvent Red 3 safe in cosmetics?

Solvent Red 3 has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.

Is Solvent Red 3 allowed in the EU?

Solvent Red 3 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Solvent Red 3 do in cosmetics?

Solvent Red 3 functions as: Colorant — oil-soluble azo dye (red-brown). It is classified as a cosmetic ingredient in our database. CAS number: 6535-42-8.

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