Safety Reference
H411Toxic to aquatic life with long lasting effects
Sourcing 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one?
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(RS)-mandelic acid
pharmaceutical intermediate
Sourcing 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one?
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This compound is a chlorinated pyrazolone derivative used as an intermediate in pharmaceutical manufacturing. Its structure features a pyrazole ring with a chlorophenyl substituent, contributing to its role in synthetic chemistry.
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 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one (CAS 90-31-3) 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.
2-(3-chlorophenyl)-5-methyl-4H-pyrazol-3-one
RIOMUJXIGYZENC-UHFFFAOYSA-N
CC1=NN(C(=O)C1)C2=CC(=CC=C2)Cl