Colorant

2-Hydroxyethyl Picramic Acid

INCI: 2-HYDROXYETHYL PICRAMIC ACID
CAS 99610-72-7 EC 412-520-9
1-hydroxy-2-.beta.-hydroxyethylamino-4,6-dinitrobenzene
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

1-hydroxy-2-.beta.-hydroxyethylamino-4,6-dinitrobenzene

Purpose

Function

Hair dyeing — semi-permanent/temporary direct dye
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Restricted
Safety
GOOD
US
Permitted
Absorptionlow
Sensitizationlow
MoSnot established
NOAEL20 mg/kg
ConcernLow
Flags
eu_cosing_listed
Verdict

Contains nitro groups (dinitro-); limited to hair dye products only; must comply with concentration limits

US Note

Permitted; listed in VCRP for hair colorant use; no specific FDA restriction beyond general safety requirements

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
99610-72-7
EC Number
412-520-9
INCI
2-HYDROXYETHYL PICRAMIC ACID
Category
Colorant
Updated
Apr 2, 2026