Structural formula Business number 01TB Molecular formula C11H13N3O Molecular weight 203.24 label 1,5-dimethyl-2-phenyl-4-amino-3-pyrazolone, 4-Amino-1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one, 4-amino-2,3-dimethyl-1-phenylpyrazolone-[5], 4-Aminoantipyrine crystal, 4-Aminoantipyraline, 4-Aminoantipyrine, 1,5-Dimethyl-2-phenyl-4-aminopyrazoline, 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, Ampyrone Numbering system Physical property data Toxicological data Ecological data Molecular structure data Computing chemical data More Properties and Stability Storage method Synthesis method Purpose Numbering system CAS number:83-07-8 MDL number:MFCD00003145 EINECS number:201-452-3 RTECS...