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  1. Propionic acid - Wikipedia

  2. Propionic Acid | CH3CH2COOH | CID 1032 - PubChem

  3. Propionic Acid: Method of Production, Current State and ...

  4. Asam propionat - Wikipedia bahasa Indonesia, ensiklopedia bebas

  5. Propionic Acid - an overview | ScienceDirect Topics

  6. Propionic Acid - an overview | ScienceDirect Topics

  7. Asam Propionat (Propionic acid) - herbapedia.id