C8H11NO4S
217.24 g/mol
Dye & PigmentDanger
4-Amino-5-methoxy-2-methylbenzenesulfonic acid
CAS6471-78-9EC229-319-5
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
intermediate for specialty dyes
4-Amino-5-methoxy-2-methylbenzenesulfonic acid, also known as p-cresidinesulfonic acid, is a synthetic organic chemical derived from toluidine. It is primarily used as an intermediate in the production of specialty dyes for food products.
intermediate for specialty dyesused in the manufacture of food dyes
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.
Sourcing 4-Amino-5-methoxy-2-methylbenzenesulfonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ReferenceSame Category
Direct Black 22
CAS6473-13-8
Direct dye for textiles
ReferenceSame Category
2-[(E)-(4-Chloro-2-nitrophényl)diazényl]-N-(2-chlorophényl)-3-oxobutanamide
CAS6486-23-3
yellow pigment for industrial use
ReferenceSame Category
2-[(E)-(4-Methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide
CAS6528-34-3
Pigment for inks and coatings
ReferenceSame Category
Pigment red 112
CAS6535-46-2
Pigment for plastics and inks
Safety Reference
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Amino-5-methoxy-2-methylbenzenesulfonic acid (CAS 6471-78-9) is 2922.29.
HS code (international, 6-digit)
2922.29
EU CN code (8-digit)
2922 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4-amino-5-methoxy-2-methylbenzenesulfonic acid
InChIKey
JBAVAJIXZVRJHT-UHFFFAOYSA-N
SMILES
CC1=CC(=C(C=C1S(=O)(=O)O)OC)N
Synonyms (16)
- Allura Red Impurity 2
- Cresidine-p-sulfonic Acid
- p-Cresidine-4-sulfonic acid
Sourcing 4-Amino-5-methoxy-2-methylbenzenesulfonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.