13-02270. Chrysamminic Acid [Archived]

Nomenclature

CAS number: 517-92-0
1,8-Dihydroxy-2,4,5,7-tetranitro-9,10-anthracenedione; 1,8-dihydroxy-2,4,5,7-tetranitroanthraquinone; 2,4,5,7-tetranitrochrysazin; chrysammic acid.
C14H4N4O12; mol wt 420.20.
C 40.02%, H 0.96%, N 13.33%, O 45.69%.

Description and references

Prepn by heating chrysazin with fuming nitric acid: Liebermann, Ann. 183, 193 (1876). Structure: Robinson, Simonsen, J. Chem. Soc. 95, 1088 (1909).

Chemical structure

Properties

Golden-yellow, lustrous, bitter leaflets. Almost insol in water; sol in alcohol with deep-red and in ether with yellow color.

Caution

The acid and its salts explode when ignited or heated rapidly in air.

Status

This monograph has been retired and is no longer subject to revision or update.