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            Semi-synthetic cephalosporin antibiotics

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            English name: 7-AVCA
            Chemical name: (6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
            Category involved: Intermediates
            Structural type:
            CAS#: 79349-82-9
            Molecular formula: C9H10N2O3S
            Molecular weight: 226.25
            Quality standard: Comply with the standards of CA
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