Chondroitin Sulphate from pig 1) CSA NO.:9007-28-7 2) Molecular formula: C14H22NNaO15S 3) Assay:Min.90% 4)Source:pig Chondroitin Sulphate from pigCAS No.: 9007-28-7Assay:Min.90% Chondroitin sulfate Certified by ISO 9001:2008, SGS, CP, USP ,BP, EP and JP certificate of analysis Should any businese opportunity arise, please feel free to contact with me.Alyson lin