Formula: is a chemical compound registered under CAS number 54866-59-0, with the molecular formula C5H6N2O2 and a molecular weight of about 126.11 g/mol. It is also known as 1H-Pyrazole-4-carboxylic acid, methyl ester, radical ion(1-) (9CI). ReagentForLab supplies Formula: for laboratory research and bulk production; product code 1367302. Send an inquiry for purity, packaging, price and lead time.