CAS 1677-87-8 appears in our catalog under these names: Acetophenone-2,4-dinitrophenylhydrazone, Acetophenone-DNPH, Acetophenone-DNPH, Concentration: 100 µg/ml Solvent: Acetonitrile. Offered by: Dr. Ehrenstorfer, HPC Standards. Available pack sizes: 50mg, 1x50mg, 1x5ml.