Direct Red 80

Also known as: 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, hexasodium salt, C.I. 35780, 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:6), 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, hexasodium salt, Hexasodium 7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-sulphonato-4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate) (+15 more)

INCI: DIRECT RED 80

Direct Red 80 (CAS 2610-10-8) is a cosmetic cosmetic ingredient functioning as Colorant. EU Regulation 1223/2009 status: prohibited. 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 2610-10-8 →

Auto-generated CPSR Part A draft with source citations
Function
Colorant
Safety Rating
POOR

Chemistry & Identifiers

Formula
C45H26N10Na6O21S6
MW
1373.1 g/mol
EC Number
220-027-3
PubChem CID
75783
IUPAC Name
hexasodium;4-hydroxy-7-[[5-hydroxy-7-sulfonato-6-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalen-2-yl]carbamoylamino]-3-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate
InChIKey
YIQKLZYTHXTDDT-UHFFFAOYSA-H

Regulatory Status

EU EU Status prohibited
US US Status prohibited
US Notes Prohibited — not FDA-approved for cosmetic use

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Direct Red 80.

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

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 Direct Red 80.

Regulatory Flags

colorant eu_banned_cosmetics eu_cosing_listed

Known Synonyms

2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, hexasodium salt C.I. 35780 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:6) 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, hexasodium salt Hexasodium 7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-sulphonato-4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate) EINECS 220-027-3 C.I. Direct Red 80, hexasodium salt Ahco Direct Fast Red 8BLN Amanil Fast Red 8BLN Belamine Fast Red 8BLN Benzanil Fast Brilliant Red B Calcomine Fast Red 8B Chlorantine Fast Red 5BRL Chlorantine Fast Red 7BLN Chrome Leather Red 5BRL Covalene Brilliant Red B Dermafix Brilliant Red BA Dialuminous Red F 3B Diazol Light Red 3B Dicorel Red L 3A

Chemical Function

Dye

Regulatory Lists

banned; Europe; Personal care

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Direct Red 80 safe in cosmetics?

Direct Red 80 has a safety rating of "POOR" in our database. EU status: prohibited. US status: prohibited.

Is Direct Red 80 allowed in the EU?

Direct Red 80 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Direct Red 80 do in cosmetics?

Direct Red 80 functions as: Colorant. It is classified as a cosmetic ingredient in our database. CAS number: 2610-10-8.

Is Direct Red 80 used outside cosmetics?

Direct Red 80 also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Direct Red 80 have different safety status in cosmetics vs industrial chemicals?

Direct Red 80 is prohibited in EU cosmetics but has active industrial GHS classifications (H315, H319, H411, H412).

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