2,3-Dimercapto-1-propanesulfonic Acid
Title: 2,3-Dimercapto-1-propanesulfonic Acid
CAS Registry Number: 74-61-3
Additional Names: 2,3-Dithiolpropanesulfonic acid
Molecular Formula: C3H8O3S3
Molecular Weight: 188.29
Percent Composition: C 19.14%, H 4.28%, O 25.49%, S 51.09%
Line Formula: HSCH2CH(SH)CH2SO3H
Literature References: Chelating agent related to BAL dimercaprol, q.v.. Prepn: N. S. Johary, L. N. Owen, J. Chem. Soc. 1955, 1307; V. E. Petrun'kin, Ukr. Khim. Zh. 22, 603 (1956), C.A. 51, 5692h (1957). Distribution and excretion in rats: B. Gabard, Arch. Toxicol. 39, 289 (1978). Metabolism study: B. Gabard, R. Walser, J. Toxicol. Environ. Health 5, 759 (1979). Use in removal of internally deposited gold: B. Gabard, Br. J. Pharmacol. 68, 607 (1980). Protection of mice vs lethal effects of sodium arsenite: H. V. Aposhian et al., Toxicol. Appl. Pharmacol. 61, 385 (1981). Pharmacokinetics in dogs: P. Wiedemann et al., Biopharm. Drug Dispos. 3, 267 (1982). Anti-lewisite activity and stability: H. V. Aposhian et al., Life Sci. 31, 2149 (1982). Toxicological studies: F. Planas-Bohne et al., Arzneim.-Forsch. 30, 1291 (1980).
Derivative Type: Sodium salt
CAS Registry Number: 4076-02-2
Additional Names: DMPS; unitiol
Trademarks: Dimaval (Heyl)
Molecular Formula: C3H7NaO3S3
Molecular Weight: 210.27
Percent Composition: C 17.14%, H 3.36%, Na 10.93%, O 22.83%, S 45.75%
Properties: Leaflets, mp 235°. LD50 i.p. in mice: 5.22 mmol/kg (Aposhian, 1981).
Melting point: mp 235°
Toxicity data: LD50 i.p. in mice: 5.22 mmol/kg (Aposhian, 1981)
Therap-Cat: Antidote (heavy metal poisoning).
Keywords: Antidote (Heavy Metal Poisoning).

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