Title: Nitrin

CAS Registry Number: 553-74-2

CAS Name: 2-Aminobenzaldehyde phenylhydrazone

Molecular Formula: C13H13N3

Molecular Weight: 211.26

Percent Composition: C 73.91%, H 6.20%, N 19.89%

Literature References: Prepd by refluxing 2-nitrobenzaldehyde with phenylhydrazine: Knöpfer, Monatsh. Chem. 31, 97 (1910).

Properties: Needles from acetone, mp 227-229° (dec). Sol in acetone. Sparingly sol in cold alcohol, ether, chloroform, benzene. A soln in alcohol or acetone develops a red color with nitrites upon addn of acid.

Melting point: mp 227-229° (dec)

Use: Detection of nitrites, colibacilli in urine: Pfeiffer, Muench. Med. Wochenschr. 92, 1315 (1950).