C21H19N4NaO5S
462.5 g/mol
Dye & PigmentWarning
ACID ORANGE 156
CAS68555-86-2EC271-462-0
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
acid dye for textile
Acid Orange 156 is a synthetic azo dye used primarily as an acid dye for textile applications. It is characterized by its aromatic ring structure and anionic sulfonate group, which enables binding to protein fibers such as wool and silk.
acid dye for textile dyeingcoloring of wool and silk fibers
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 68555-86-2
Related Compounds
ReferenceSame Category
Pigment Red 273
CAS68583-95-9
Food dye and pigment
ReferenceSame Category
Pigment Blue 78
CAS68921-42-6
Color additive for food and cosmetics
ReferenceSame Category
1-butyl-5-((4-chlorophenyl)azo)-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile
CAS69808-32-8
Disperse dye for synthetic fibers
ReferenceSame Category
Reactive orange 12
CAS70161-14-7
reactive dye for textiles
Referencesame scaffold
BHQ-1 carboxylic acid
CAS1190431-95-8
research compound
Safety Reference
Warning
H319Causes serious eye irritation
Identifiers
IUPAC Name
sodium 4-[[5-methoxy-4-[(4-methoxyphenyl)diazenyl]-2-methylphenyl]diazenyl]benzenesulfonate
InChIKey
DBSJKTVELUTRJM-UHFFFAOYSA-M
SMILES
CC1=CC(=C(C=C1N=NC2=CC=C(C=C2)S(=O)(=O)[O-])OC)N=NC3=CC=C(C=C3)OC.[Na+]
Synonyms (9)
- ACID ORANGE 156
- Acid Orange 156, tech.
- CI ACID ORANGE 156
- ERIONYL ORANGE 3 G