Triethyl orthoformate(TEOF),Trimethoxymethane(TMOF),Polyvinylpyrrolidone(PVP K),O-Toluidine,N-Methyl-Pyrrolidinone(NMP),etc
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7-Amino-3-methyl-3-cephem-4-carboxylic acidCAS NO.: 22252-43-3