CAS 2074-05-7 appears in our catalog under these names: Heptanal-2,4-dinitrophenylhydrazone, Heptanal-2,4-dinitrophenylhydrazone 100 µg/mL in Acetonitrile, HEPTALDEHYDE (DNPH DERIVATIVE), ≥98%, ≥98%. Offered by: Dr. Ehrenstorfer, Chemat. Available pack sizes: 100mg, 1ml, 500mg, 1g.