59062-12-3 ACETIC ACID, CYANO((3-NITROPHENYL)HYDRAZONO)-, BUTYL ESTER BRN 1826313 Cyanoglyoxylic acid butyl ester 2-(m-nitrophenyl)hydrazone Glyoxylic acid, cyano-, butyl ester, 2-(m-nitrophenyl)hydrazone