Title: Cacodylic Acid
CAS Registry Number: 75-60-5
CAS Name: Dimethylarsinic acid
Additional Names: hydroxydimethylarsine oxide
Trademarks: Phytar (Monterey)
Molecular Formula: C2H7AsO2
Molecular Weight: 138.00
Percent Composition: C 17.41%, H 5.11%, As 54.29%, O 23.19%
Line Formula: (CH3)2As(O)OH
Literature References: Prepn: Guinot, J. Pharm. Chim. 27, 55 (1923), C.A. 17, 21038 (1923); Inverni, Boll. Chim. Farm. 62, 129 (1923), C.A. 17, 24137 (1923); Challenger, Ellis, J. Chem. Soc. 1935, 396; Fioretti, Portelli, Ann. Chim. (Rome) 53, 1869 (1963), C.A. 60, 10712c (l964). Use as herbicide: Sprague, US 3056668 (1962 to Ansul). Toxicity study: G. W. Bailey, J. L. White, Residue Rev. 10, 97 (1965). Review of toxicology and human exposure: Toxicological Profile for Arsenic (PB2000-108021, 2000) 468 pp.
Properties: Crystals from alcohol + ether. mp 195-196°. Hygroscopic. Poisonous! Sol in 0.5 part water; very sol in alcohol; sol in acetic acid. Practically insol in ether. Keep well closed. LD50 orally in rats: 1350 mg/kg (Bailey, White).
Melting point: mp 195-196°
Toxicity data: LD50 orally in rats: 1350 mg/kg (Bailey, White)
Derivative Type: Mercury salt
Additional Names: Mercuric cacodylate
Molecular Formula: C4H12As2HgO4
Molecular Weight: 474.57
Percent Composition: C 10.12%, H 2.55%, As 31.57%, Hg 42.27%, O 13.49%
Properties: Hygroscopic, somewhat unstable cryst powder. Soluble in water, alcohol. Practically insol in ether. Keep well closed.
Use: Herbicide.
Therap-Cat: Dermatologic.
Therap-Cat-Vet: Has been used in chronic eczema, anemia and as a tonic. |