Product name: Antimony potassium 
Alias: Antimony potassium; butanedioate, 2,3-dihydroxy-, antimony(3+) potassium salt (1:1:1); L-Antimony Potassium Tartrate 
CAS No.: 11071-15-1 
EINECS No.: 234-293-3 
Molecular formula: C8H4K2O12Sb2 
Molecular weight: 613.8268 
Uses: Mordant and insecticide for fabric and leather, also used in pharmaceutical industry