C32H24N8Na2O8S2
758.7 g/mol
Dye & PigmentWarning
ACID YELLOW 42
CAS6375-55-9EC228-940-9
Category
Dye & Pigment
Compound Class
Organic Acid
Primary Use
Acid dye for textile coloring
Acid Yellow 42 is a synthetic azo dye primarily used in textile coloring. It is a sodium salt of a bis-azo compound with sulfonate groups, contributing to its water solubility and affinity for protein fibers.
Textile dyeingColoring of wool and silk
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 6375-55-9
Related Compounds
SimilarStructure SimilarSimilarity 0.75
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Safety Reference
Warning
H317May cause an allergic skin reaction
H319Causes serious eye irritation
Identifiers
IUPAC Name
disodium;5-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]-2-[4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]-2-sulfonatophenyl]benzenesulfonate
InChIKey
ZRYQXQUPWQNYSX-UHFFFAOYSA-L
SMILES
CC1=NN(C(=O)C1N=NC2=CC(=C(C=C2)C3=C(C=C(C=C3)N=NC4C(=NN(C4=O)C5=CC=CC=C5)C)S(=O)(=O)[O-])S(=O)(=O)[O-])C6=CC=CC=C6.[Na+].[Na+]
Synonyms (39)
- ACID YELLOW 42
- Acid Anthracene Yellow GR
- Acid Fast Yellow MR
- Acid Leather Yellow CRS
- Acid Yellow K
- Airedale Yellow 3GM
- Amacid Fast Yellow RS
- Belacid Milling Yellow R
- Benzyl Fast Yellow RS
- C.I. Acid Yellow 42
- Calcocid Milling Yellow R
- Coomassie Yellow R
- Coomassie Yellow RP
- Cyanine Fast Yellow M
- Erio Fast Yellow RL
- Fast Silk Yellow SH
- Kca Acid Milling Yellow M
- Midlon Yellow Propyl
- Milling Yellow 3J
- Milling Yellow RX
- Naphthalene Leather Yellow 2G
- Optanol Yellow R
- Pharmacine Yellow R
- Pharmatex Yellow G
- Shikiso Acid Fast Yellow MR
- Sulfonine Yellow CSR
- Sulphon Yellow RS-CF
- Suminol Milling Yellow MR
- Supranol Yellow R
- Symulon Acid Fast Yellow MR
- Tertracid Milling Yellow R
- Xylene Milling Yellow SH