4519. Gold Sodium Thiosulfate

Nomenclature

CAS number: 15283-45-1
Trisodium (T-4)-bis[monothiosulfato(2)-κO,κS]-aurate(3); hyposulfite of gold and sodium; sodium aurothiosulfate; Aurocidin; Aurolin (UCB); Crisalbine; Fosfocrisolo (Zambon); Sanocrysin.
AuNa3O6S4; mol wt 490.19.
Au 40.18%, Na 14.07%, O 19.58%, S 26.17%.
Na3Au(S2O3)2.

Description and references

Prepn of dihydrate: Fordos, Gélis, Ann. Chim. Phys. 13, 394 (1845); H. Brown, J. Am. Chem. Soc. 49, 958 (1927); Roger's Inorganic Pharmaceutical Chemistry, T. O. Soine, C. O. Wilson, Eds. (Lea & Febiger, Philadelphia, 8th ed., 1967) pp 343-345. Crystal structure of dihydrate: H. Ruben et al., Inorg. Chem. 13, 1836 (1974). Efficacy of antidotes: M. A. Basinger et al., J. Rheumatol. 12, 274 (1985). Clinical study of contact allergy patch test reactions: K. E. McKenna et al., Contact Dermatitis 32, 143 (1995). Clinical evaluation in rheumatoid arthritis: M. L. Ciompi et al., Reumatismo 54, 251 (2002).

Derivative

Dihydrate.

Nomenclature

CAS number: 33614-49-2

Properties

White, glistening, needle-like or prismatic crystals. d 3.14. Darkens slowly on exposure to light. One gram dissolves in 2 ml water. Insol in alc and most other organic solvents. A 1:20 aq soln is neutral or slightly alkaline to litmus. LD50 i.p. in mice: 110 mg/kg (Basinger).

Caution

Potential symptoms of overexposure via therapeutic i.m. administration are dermatitis, nausea, vomiting, diarrhea, nephritis, blood disorders, peripheral neuritis, hepatitis, encephalitis. See Clinical Toxicology of Commercial Products, R. E. Gosselin et al., Eds. (Williams & Wilkins, Baltimore, 5th ed., 1984) p II-144.

Therapeutic Category

Antirheumatic; diagnostic aid (contact allergen).

Keywords

Antiarthritic/Antirheumatic; Diagnostic Aid