2981. 2,4-Diamino-6-hydroxypyrimidine

Nomenclature

CAS number: 56-06-4
2,6-Diamino-4(1H)-pyrimidinone.
C4H6N4O; mol wt 126.12.
C 38.09%, H 4.80%, N 44.42%, O 12.69%.

Description and references

Prepn from guanidine hydrochloride and cyanoacetic ester: Traube, Ber. 33, 1371 (1900).

Chemical structure

Properties

Crystallizes from water as the monohydrate. When anhydrous, dec 286°.

Use

In the detection of nitrites and nitrates.