Safety Reference
Warning
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
Regulatory Compliance1
- CN Catalogue of Hazardous Chemicals
Sourcing SULFANILIC ACID?
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M-toluidine
Intermediate for dyes and organic chemicals
Sourcing SULFANILIC ACID?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Sulfanilic acid is an aromatic sulfonic acid primarily used as an intermediate in the synthesis of dyes and other organic chemicals. It also serves as a reagent in analytical chemistry, such as Ehrlich's reagent and for the determination of nitrites.
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 SULFANILIC ACID (CAS 121-57-3) is 2921.42.
2921.42
2921 42 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-aminobenzenesulfonic acid
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