... :135.1201 \EC NO:241-367-9 Molecular formula :C7H5NO2 3,4-DIHYDROXYBENZONITRILECAS NO:17345-61-8 Molecular weight :135.1201\EC ... formula :C7H5NO2 4-CYANOCATECHOL; 4-CYANOPYROCATECHOL; 4-CYANO-1,2-DIHYDROXYBENZENE; 3,4-DIHYDROXYBENZONITRILE; AKOS B004053; BENZONITRILE, 3,4-DIHYDROXY-; PROTOCATECHUONITRILE; TIMTEC-BB SBB008582; 3, 4-Dihydroxy benzonitrile; Protocatachuonitrile ...