sym-Diphenylcarbazide

Title: sym-Diphenylcarbazide
CAS Registry Number: 140-22-7
CAS Name: 2,2¢-Diphenylcarbonic dihydrazide
Molecular Formula: C13H14N4O
Molecular Weight: 242.28
Percent Composition: C 64.45%, H 5.82%, N 23.12%, O 6.60%
Line Formula: C6H5NHNHCONHNHC6H5
Properties: White, cryst powder, gradually becomes pink. mp 168-171°. Very slightly sol in water; sol in hot alcohol, acetone, glacial acetic acid. Keep protected from light.
Melting point: mp 168-171°
Use: As indicator in titrating Fe; for the colorimetric determination of Cr, detection of Cd, Hg, Mg, aldehydes, emetine.
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