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详情请咨询：QQ-3003337926，Tel-18672007304（李经理） Cyanocobalamin Impurity 17 CAS No. 121483-62-3 Chemical Formula : C63H87CoN13O15P STD No. 222517C

详情请联系：18672007304（微信同号）QQ 3003337926 15130-04-8 Cyanocobalamin Impurity 15(Cyanocobalamin EP Impurity G) CAS No. 15130-04-8 Chemical Formula : C64H90CoN14O14P STD No. 222515C

详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 14 CAS No. 13870-90-1 Chemical Formula : C72H100CoN18O17P STD No. 222514C

详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 13 (Cyanocobalamin EP Impurity H Hydrochloride) CAS No. 59461-30-2 Chemical Formula : C62H89CoN13O15P · HCl STD No. 222513C

详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 11 (Cyanocobalamin EP Impurity B) (50-Carboxycyanocobalamin) CAS No. 26264-28-8 Chemical Formula : C63H87CoN13O15P STD No. 222511C

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详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 9 (Cyanocobalamin EP Impurity D) CAS No. 38218-77-8 Chemical Formula : C63H87CoN13O15P STD No. 22259C

详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 8 (Cyanocobalamin EP Impurity E)(8-epi-Cyanocobalamin) CAS No. 41325-63-7 Chemical Formula : C63H88CoN14O14P STD No. 22258C

详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 7 CAS No. 38218-55-2 Chemical Formula : C63H87CoN13O15P STD No. 22257C

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湖北扬信医药（现货）供应维生素 B12全套杂质对照品， 详情请联系：18672007304（微信同号）QQ 3003337926 Cyanocobalamin Impurity 4 CAS No. 23388-02-5 Chemical Formula : C63H86CoN14O14P STD No. 22254C