Натрия ауротиомалат

Физические свойства

White to yellowish white powder; odorless; metallic taste; highly soluble in water; practically insoluble in ethanol and ether.

Использование

Sodium aurothiomalate(I) is useful for high mobility group box chromosomal protein 1 western blotting.

Определение

White to yellowish-white powder; odorless; metallic taste. Affected by light. Very soluble in water; practically insoluble in alcohol and ether; aqueous solutions are colorless to pale yellow; pH (5% solution) 5.8–6.5.

Методы производства

Gold(I) thiomalate is prepared by reacting sodium thiomalate with gold(I) halide. It is stored in the dark and otherwise protected from light.

Фармацевтические приложения

Sodium aurothiomalate is a commonly used gold-based DMARD and is indicated for active progressive RA. It is administered by deep intramuscular injection. Administration is started with a test dose of 10mg followed by weekly intervals of 50 mg doses. An improvement is expected to be seen once 300–500 mg is administered. Treatment should be discontinued if there is no improvement after administering 1 g or 2months. Intervals of administration should be gradually increased to 4weeks in patients in whom an effect can be seen. If any blood disorders or other side effects such as GI bleedings or proteinuria are observed, sodium aurothiomalate should be discontinued.

Профиль безопасности

Poison by subcutaneous and intramuscular routes. Moderately toxic bj intravenous ' route. Human systemic effects: aggression, agranulocytosis, aplastic anemia, cell count changes, changes in circulation, cholestatic jaunhce, dermatitis, encephalitis, fasciculations, flaccid paralysis without anesthesia, hemorrhage, hepatitis (hepatocellular necrosis), increased body temperature, interstitial fibrosis, muscle weakness, proteinuria, recording from peripheral motor nerve, depressed renal function tests, somnolence, structural changes in nerve sheath, thrombocytopenia, uncharacterized allergc reaction, changes in blood, teeth, and supporting structures. Experimental teratogenic and reproductive effects. When heated to decomposition it emits very toxic Na2O and SOx.

Синтез

Synthesis: a solution of thiomalic acid and 3 equivalents of sodium hydroxide are mixed with an aqueous suspension of gold(I) iodide. The product, a mixture of the mono- and disodium salts, is precipitated by the addition of ethanol.