Is CI 15620 (Acid Red 88) safe in cosmetics?
CI 15620 (Acid Red 88) has a safety rating of "MODERATE" in our database. EU status: restricted. US status: prohibited.
Moderate
Cosmetic Ingredient
CI 15620 (Acid Red 88)
Also known as: 1-Naphthalenesulfonic acid, 4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1), 1-Naphthalenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt, C.I. Acid Red 88, Acid cardinal G, Acid Leather Red ROC (+15 more)
INCI: CI 15620
CI 15620 (Acid Red 88) (CAS 1658-56-6) is a cosmetic cosmetic ingredient functioning as Colorant. Synthetic monoazo red dye (Sodium 4-[(2-hydroxy-1-naphthyl)azo]naphtha. EU Regulation 1223/2009 status: restricted, max Rinse-off products only. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 1658-56-6 →
Auto-generated CPSR Part A draft with source citations
Function
Colorant. Synthetic monoazo red dye (Sodium 4-[(2-hydroxy-1-naphthyl)azo]naphthalenesulphonate), also known as Acid Red 88. Water-soluble anionic azo dye imparting a red hue to cosmetic formulations. EU-permitted for use in rinse-off cosmetics only. Used in hair dyes and rinse-off personal care products.
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
sodium 4-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate
InChIKey
LGZQSRCLLIPAEE-UHFFFAOYSA-M
Regulatory Status
EU EU Status
restricted
EU Max Conc.
Rinse-off products only
US US Status
prohibited
US Notes
CI 15620 is not listed by the FDA as a permitted color additive for cosmetics under 21 CFR Parts 73 or 74. It does not appear in the FDA color additives inventory for cosmetic or drug use. Formulations containing CI 15620 intended for US distribution would not be compliant. Use in the US is prohibited by omission from the FDA approved list.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for CI 15620 (Acid Red 88).
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
EU CosIng Annex Listing
European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.
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 (IV - Colorants)
Product type: Rinse-off products.
BRIN Brazil/India Cosmetics
India: Permitted Colorant
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Regulatory List Membership (2)
EU Regulated in Personal Care
EU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for CI 15620 (Acid Red 88).
Regulatory Flags
azo-dye
eu-annex-iv
eu-restricted
rinse-off-only
not-fda-approved
eu-only
no-us-use
synthetic-colorant
hair-dye-compatible
eu_cosing_listed
Known Synonyms
1-Naphthalenesulfonic acid, 4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)
1-Naphthalenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt
C.I. Acid Red 88
Acid cardinal G
Acid Leather Red ROC
Acid Red G
Acid Red 88
Acid Red AV
Acid Rose AV
Airedale Red A
Amacid Fast Red A
Anthrosin BRX
Atul Acid Fast Red A
Azo Acid Red GS
Benzyl Red S
Benzyl Red ROC
Brasilan Red S
Bucacid Fast Red A
Calcocid Fast Red A
Colacid Red AV
Chemical Function
Dye
Regulatory Lists
inert_ingredient; non_food_use; Pesticides
Europe; Personal care
Australian Status
AICIS status: listed
Frequently Asked Questions
Is CI 15620 (Acid Red 88) allowed in the EU?
CI 15620 (Acid Red 88) EU regulatory status: restricted. Maximum allowed concentration: Rinse-off products only. This is based on EU Regulation 1223/2009 and its amendments.
What does CI 15620 (Acid Red 88) do in cosmetics?
CI 15620 (Acid Red 88) functions as: Colorant. Synthetic monoazo red dye (Sodium 4-[(2-hydroxy-1-naphthyl)azo]naphthalenesulphonate), also known as Acid Red 88. Water-soluble anionic azo dye imparting a red hue to cosmetic formulations. EU-permitted for use in rinse-off cosmetics only. Used in hair dyes and rinse-off personal care products.. It is classified as a cosmetic ingredient in our database. CAS number: 1658-56-6.
Is CI 15620 (Acid Red 88) used outside cosmetics?
CI 15620 (Acid Red 88) also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check CI 15620 (Acid Red 88) compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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