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(S)-(+)-3-CHLORO-1,2-PROPANEDIOL CAS60827-45-4Used in synthesis of chiral reagent and medicine intermediate
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1,8-Diazabicyclo[5.4.0]undec-7-ene CAS6674-22-2Semi-synthetic cephalosporin antibiotic used to manufacture drugs, but also for the preparation of deacidification agent, rust inhibitor, corrosion inhibitor and other senior.