Skip to content

Colorant

2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE

CAS 84540-47-6
42

Safety score · 0–100

Moderate

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

A pyridine-derivative used as a coupler in oxidative hair dyes. Like other hair-dye couplers it can sensitise skin and irritate eyes — patch testing is recommended.

Function

HAIR DYEING

Skin benefits

  • Hair dye coupler — modifier of color
  • Permits softer color shades

Known concerns

  • Hair-dye allergen class
  • Eye irritant
  • SCCS-restricted maximum levels
  • Patch test recommended

References

EU

EU CosIng database

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

Related colorants

42
ACID RED 195
Colorant
 42
BASIC YELLOW 87
Colorant
 42
CI 18736
Colorant
 42
CI 45100
Colorant
 42
CI 61565
Colorant
 42
CI 69800
Colorant
 42
HC RED NO. 20
Colorant
 42
HC VIOLET NO. 1
Colorant

Check your shelf

Find 2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE in your products.

Scan any cosmetic product with LuxSense to see if it contains 2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE 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.