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  1. Propyne - Wikipedia

  2. Propyne - NIST Chemistry WebBook

  3. Propyne | CH3-C=CH | CID 6335 - PubChem

  4. Propyne | C3H4 - ChemSpider

  5. 3.7: Alkynes - Chemistry LibreTexts

  6. Propyne | Formula, Properties & Application

  7. Propyne Formula & Structure - Purdue University

  8. Propyne Structure - C3H4 - Over 100 million chemical

  9. Propyne - Purdue University

  10. Propyne Formula - C3H4 - Over 100 million chemical