calcium (1R)-1,3-dihydroxy-2,2-dimethyl-1-[2-(2-sulfonatosulfanylethyl carbamoyl)ethylcarbamoyl]propane

Thiosulfuric acid (H2S2O3), S-2-3-(2R)-2,4-dihydroxy-3,3-dimethyl-1-oxobutylamino-1-oxopropylaminoethyl ester, calcium salt (2:1)