Sodium aurothiosulfate is the inorganic compound with the formula Na3Au(S2O3)2·2H2O. This salt contains an anionic linear coordination complex of gold(I) bound to two thiosulfate ligands. Like several other gold compounds, this species is used as an antirheumatic.The first placebo-controlled trial was probably conducted in 1931, when sanocrysin was compared with distilled water for the treatment of tuberculosis.
^Baggio, R (1973). "Crystal and molecular structure of trisodium dithiosulphate aurate(I), dihydrate, Na3[Au(S2O3)2],2H2O". Journal of Inorganic and Nuclear Chemistry35 (9): 3191. doi:10.1016/0022-1902(73)80019-3.
^Tobön-Zapata, G (1997). "Vibrational spectrum of Sanocrysin". Spectrochimica Acta Part a Molecular and Biomolecular Spectroscopy53 (2): 183. doi:10.1016/S1386-1425(97)83024-7.