Propiolic acid

• CAT Number: I047429
• CAS Number: 471-25-0
• Molecular Formula: C3H2O2
• Molecular Weight: 70.05
• Purity: ≥95%
• Storage: 2 years 4°C liquid
• IUPAC Name: prop-2-ynoic acid
• InChI: InChI=1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)
• InChIKey: UORVCLMRJXCDCP-UHFFFAOYSA-N
• SMILES: C#CC(=O)O

Propiolic acid (Cat No.:I047429) is a terminal alkyne-containing carboxylic acid with the molecular formula C3H2O2. It features a triple bond between carbon atoms and a carboxyl group, making it highly reactive in organic synthesis. This colorless to pale yellow liquid is used as a building block in the production of pharmaceuticals, agrochemicals, and advanced materials. Its alkyne functionality allows participation in coupling reactions, cycloadditions, and polymerizations. Propiolic acid is corrosive and volatile, requiring careful handling under controlled conditions. It is valued for its versatility in synthetic and materials chemistry.