6917. Oxamic Acid

Nomenclature

CAS number: 471-47-6
2-Amino-2-oxoacetic acid; oxalamic acid; oxamidic acid.
C2H3NO3; mol wt 89.05.
C 26.98%, H 3.40%, N 15.73%, O 53.90%.

Description and references

Prepd by heating oxamide in water with ammonia, followed by neutralization of resulting ammonium salt: Toussaint, Ann. 120, 237 (1861).

Chemical structure

Properties

Cryst powder from water, or prisms from alcohol, dec about 210 or 214°. Sparingly sol in water. Practically insol in abs alcohol, ether.

Derivative

Ammonium salt.

Nomenclature

CAS number: 516-00-7
Ammonium oxamate.
C2H6N2O3; mol wt 106.08.
C 22.64%, H 5.70%, N 26.41%, O 45.25%.

Properties

Monoclinic prisms, dec about 226°. Very slightly sol in cold water, alcohol.