Arsenoacetic Acid

Title: Arsenoacetic Acid
CAS Registry Number: 544-27-4
CAS Name: 2,2¢-(1,2-Diarsenediyl)bisacetic acid
Additional Names: arsenodiacetic acid; diarsenoacetic acid
Molecular Formula: C4H6As2O4
Molecular Weight: 267.93
Percent Composition: C 17.93%, H 2.26%, As 55.93%, O 23.89%
Line Formula: HOOCCH2As=AsCH2COOH
Literature References: Prepd by dissolving sodium arsonoacetate and sodium hypophosphite in 15% H2SO4: Palmer, J. Am. Chem. Soc. 45, 3023 (1923); Org. Synth. coll. vol. I, 73 (1941). Compare Arsonoacetic Acid.
Properties: Minute yellow needles, begin to dec at about 205°, but do not melt below 260°. Practically insol in water and common organic solvents. Readily sol in pyridine, dil sodium hydroxide and dil sodium carbonate solns.
Derivative Type: Disodium salt
Additional Names: Disodium arsenoacetate
Molecular Formula: C4H4As2Na2O4
Molecular Weight: 311.89
Percent Composition: C 15.40%, H 1.29%, As 48.04%, Na 14.74%, O 20.52%
Properties: Yellow powder, freely sol in water.
Therap-Cat-Vet: Disodium salt has been used as an injectable tonic for horses.
Arsine Arsonoacetic Acid Arsphenamine Arsthinol Arteether