Acid Orange 3

Acid Orange 3

AKA “C.I. Acid Orange 3, Amido yellow EA, Amido Yellow E, Acid Yellow E, Airedale Yellow E, CI 10385, Sodium 2-anilino-5-(2, 4-dinitroanilino)benzenesulphonate”

Synthetic

Ingredient Facts

Acid orange 3

AKA: C.I. Acid Orange 3, Amido yellow EA, Amido Yellow E, Acid Yellow E, Airedale Yellow E, CI 10385, Sodium 2-anilino-5-(2, 4-dinitroanilino)benzenesulphonate

Synthetic · Hair Dyeing · EWG: 4

Synthetic

Colorant

Synthetic

Clean

A synthetic colorant used to create warm, vibrant hair tones. It delivers long-lasting color payoff and is commonly used in professional hair dyes.

Solubility 1 to 10 mg/mL at 77 °F (NTP, 1992)

Formula

C18H13N4NaO7S

Mol. Weight

452.40

CAS #

6373-74-6

Form

Powder

State

C.i. acid orange 3 is a brown to dark brown microcrystalline powder. (NTP, 1992)

See origin →

Functions

Hair Dyeing

Colorant

Gives the product its color. Purely aesthetic — makes the formula look good in the jar but does nothing for your skin.

Colors Hair

Traditional Use

A synthetic azo dye developed in the late 19th century as part of the industrial revolution in synthetic colorants. First synthesized for textile use before being adapted for cosmetic colorization.