Home/Compounds/Dye & Pigment/Acid orange 3

C₁₈H₁₃N₄NaO₇S

452.4 g/mol

Dye & PigmentDanger

Acid Orange 3

CAS6373-74-6EC228-921-5

Category

Dye & Pigment

Compound Class

Aromatic

Primary Use

dye for wool, nylon, silk, and leather

Acid Orange 3 is an azo dye used for coloring wool, nylon, silk, and leather. It is distinct from methyl orange, which is a pH indicator used in titrations.

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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CAS 6373-74-6

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Related Compounds

ReferenceSame Category

Acid Yellow 42

Acid dye for textile coloring

ReferenceSame Category

Direct Green 26

direct dye for textiles

ReferenceSame Category

Ethyl pyrazolone t

Dye intermediate

ReferenceSame Category

Acid Red 151

synthetic acid dye

Safety Reference

Corrosive

Harmful

Danger

H315Causes skin irritation

H317May cause an allergic skin reaction

H318Causes serious eye damage

H319Causes serious eye irritation

H335May cause respiratory irritation

Identifiers

IUPAC Name

sodium 2-anilino-5-(2,4-dinitroanilino)benzenesulfonate

InChIKey

KKBFCPLWFWQNFB-UHFFFAOYSA-M

SMILES

C1=CC=C(C=C1)NC2=C(C=C(C=C2)NC3=C(C=C(C=C3)[N+](=O)[O-])[N+](=O)[O-])S(=O)(=O)[O-].[Na+]

Synonyms (59)