Skip to content

Colorant

ACID YELLOW 1

CAS 846-70-8
55

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A synthetic nitro hair dye (CAS 846-70-8, CI 10316) regulated under EU Annex III with specific permitted uses. Limited to non-oxidative hair-dye applications with concentration caps.

Function

HAIR DYEING

Skin benefits

  • Provides yellow hair colour in rinse-off use

Known concerns

  • EU Annex III: max 1% in rinse-off hair dye
  • Nitro-aromatic class flags
  • Possible sensitiser

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related colorants

55
8,18-Dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3',2'-m]triphenodioxazine
Colorant
 55
ACID BLUE 9
Colorant
 55
ACID BLUE 9 ALUMINUM LAKE
Colorant
 55
ACID BLUE 9 AMMONIUM SALT
Colorant
 55
ACID RED 87
Colorant
 55
ALUMINUM
Colorant
 55
ALUMINUM POWDER
Colorant
 55
AMMONIUM XANTHOMMATIN
Colorant

Same plant / compound family

58
ACID YELLOW 23
Colorant
 60
ACID YELLOW 23 ALUMINUM LAKE
Colorant
 35
ACID YELLOW 3
Colorant
 70
ACID YELLOW 3 ALUMINUM LAKE
Colorant
 18
ACID YELLOW 36
Colorant
 25
ACID YELLOW 73
Colorant

Check your shelf

Find ACID YELLOW 1 in your products.

Scan any cosmetic product with LuxSense to see if it contains ACID YELLOW 1 and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.