CAS 958-60-1 appears in our catalog under these names: 2-Butanone-2,4-dinitrophenylhydrazone, Ethyl Methyl Ketone 2，4–Dinitrophenylhydrazone, Ethyl Methyl Ketone 2,4-Dinitrophenylhydrazone, >98.0%(HPLC)(T), 2-BUTANONE-2,4-DNPH, 2-Butanone, 2-(2,4-dinitrophenyl)hydrazone, 95%, 95%. Offered by: Dr. Ehrenstorfer, GLPBio, Biosynth, TCI, Sigma-Aldrich. Available pack sizes: 100mg, 1g, 5g, 5000mg, 10g, 25g, 1x100mg, 1x10ml.