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  1. Piperacillin | C23H27N5O7S | CID 43672 - PubChem

  2. Piperacillin - Wikipedia

  3. Piperacillin | C23H27N5O7S - ChemSpider

  4. piperacillin (CHEBI:8232) - EMBL-EBI

  5. Piperacillin Structure - C23H27N5O7S - Over 100 million …

  6. L-Piperacillin | C23H27N5O7S | CID 6604563 - PubChem

  7. Piperacillin (Open Form) | C23H29N5O7S | CID 78225432

  8. Penicillins / Piperacillin - Medicinal Chemical Structures

  9. Chemical structure of piperacillin sodium - ResearchGate

  10. Chemical structure of the studied antibiotics: piperacillin (a ...