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Cefprozil (4)CAS RN:92665-29-7;121123-17-9
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Toronto Research Chemicals Inc.Telephone:+1 416 665-9696
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Eli ChemicalTelephone:1-416-250-5009
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tabas chemical co. (tcc groups)Telephone:98-511-2124340
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McTony Bio&ChemTelephone:604 249 2899