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1 Kilogram |
Negotiable |
(6R,7R)-3-(Acetoxymethyl)-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 153-61-7 C16H16N2O6S2