5-Chloro-1-methyl-1H-pyrazole-4-carboxylic acid (CAS NO.54367-66-7), its Synonyms are 5-Chloro-1-methyl-1H-pyrazole-4-carboxylic acid 95% ; 1H-pyrazole-4-carboxylic acid, 5-chloro-1-methyl- .