Arin LogoArin
← Back

Acid Yellow 1

Controversial0 products
CAS
846-70-8
EC
2126902
PubChem CID
2724063
Molecular Formula
C10H4N2Na2O8S
Molecular Weight
358.1900 g/mol

Used as a colorant in hair dyes. Safe when used up to a maximum of 0.2% in non-oxidative products.

What does it do?

Used as a colorant in hair dyes.

Details

A synthetic dye used to give yellow color to hair products. In temporary products that do not contain oxidants, the usage rate is kept at a very low level of 0.2%. The reason for this low limit is the potential to irritate the skin or cause allergies. It is generally found in temporary dyes or color-refreshing shampoos.

Hazards

Irritantⓘ
Barrier Disruptor
Phototoxicⓘ

Benefits

None Specified

Functions

Colorant
Active Ingredient

Restrictions

Risky During Pregnancy
Not Suitable for Infants

Where is it found?

Hair dyes

Also known as

Disodium 5,7-dinitro-8-oxido-2-naphthalenesulfonate CI 10316

Function & Use

Hair Dyeing

Cosmetic Colorant

Regulatory note

  • EU 1223/2009 Annex IIIRestricted
  • EU 1223/2009 Annex IVAllowed
The verdict isn’t ours: below is what SCCS (EU Scientific Committee on Consumer Safety), ToxValDB (EPA Toxicity Value Database) said, verbatim.

What The Sources Say

SCCS (EU Scientific Committee on Consumer Safety)2
Safety assessment

EU 1223/2009 Annex IV — SCCS opinion: Opinion on Acid Yellow 1

+1 more records.

ToxValDB (EPA Toxicity Value Database)1
Hazard claimView source →

EPA ToxValDB skin/eye data — endpoint: Skin Sensitization, classification: SkinSens1. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.

Scientific References

  • EPA CompTox Chemicals Dashboard — DSSTox identifiers mapped to CAS (2021r1)US EPA, Center for Computational Toxicology and Exposure
  • EU CosIng — Cosmetic Ingredient Database full exportEuropean Commission, DG GROW
  • Opinion on Acid Yellow 1SCCS — Scientific Committee on Consumer Safety
  • ToxValDB — skin/eyeUS EPA — ToxValDB v97