6580. Nitrin

Nomenclature

CAS number: 553-74-2
2-Aminobenzaldehyde phenylhydrazone.
C13H13N3; mol wt 211.26.
C 73.91%, H 6.20%, N 19.89%.

Description and references

Prepd by refluxing 2-nitrobenzaldehyde with phenylhydrazine: Kn"opfer, Monatsh. Chem. 31, 97 (1910).

Chemical structure

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.

Use

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