Safety Reference
Warning
H317May cause an allergic skin reaction
H319Causes serious eye irritation
Sourcing ACID YELLOW 42?
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Acid Yellow 99
Acid dye for textile coloring
Fast Black K salt hemi zinc chloride
Dye salt for textile coloring
Sourcing ACID YELLOW 42?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
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.
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.
The international HS code for ACID YELLOW 42 (CAS 6375-55-9) is 3204.12.
3204.12
3204 12 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
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
ZRYQXQUPWQNYSX-UHFFFAOYSA-L
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+]