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3,5-Pyridinedicarboxylic acid (3)CAS RN:499-81-0
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Changzhou United Chemical Co., Ltd.Telephone:+86-519-85193679
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Anhui Xingyu Chemical Co,.Ltd.（Changzhou Jinweida Chemical Co,.Ltd.）Telephone:+86-555-2568883;+86-519-83293217;013801504285
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Huzhou Hengyuan Biochem. Tech. Co., Ltd.Telephone:+86-572-2767333 2767307 2767308