4-(2-hydroxy-5-methylphenylazo)acetanilide is an azo dye with a structure consisting of acetanilide substituted on the 4-position of the phenyl group with a 6-hydroxy-m-tolylazo group. It has a role as a dye and an allergen. It is a member of azobenzenes and a monocarboxylic acid amide. It is functionally related to an azobenzene.
Solubility less than 0.1 mg/mL at 64 °F (NTP, 1992)
Formula
C15H15N3O2
Mol. Weight
269.30
CAS #
2832-40-8
Form
Powder
State
C.i. disperse yellow 3 is a brownish-yellow powder. (NTP, 1992)
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
Functions
Cosmetic Colorant
Gives the product its color. Purely aesthetic — makes the formula look good in the jar but does nothing for your skin.
Locks In Moisture
Provides yellow coloration
Adds visual interest to cosmetic formulations
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
3
CIR
Insufficient data
Pregnancy
No
CIR Safety Findings
Sensitizer in Testing
1 study / 1 sensitizing / plus 1 case report (CIR 11)
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