Safety Reference
Warning
H319Causes serious eye irritation
H412Harmful to aquatic life with long lasting effects
Sourcing Pyrazolone T?
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3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid
Dye and pigment intermediate
Sourcing Pyrazolone T?
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Pyrazolone T is an organic compound used as an intermediate in the production of pyrazolone-based dyes. It features a sulfonic acid group and a carboxylic acid group, contributing to its solubility and reactivity in dye synthesis.
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 Pyrazolone T (CAS 118-47-8) is 2933.19.
2933.19
2933 19 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
5-oxo-1-(4-sulfophenyl)-4H-pyrazole-3-carboxylic acid
TYCNXOAPQGVAQU-UHFFFAOYSA-N
C1C(=NN(C1=O)C2=CC=C(C=C2)S(=O)(=O)O)C(=O)O