Keywords: Propiolic acid 200.svg validSVG Structure of propiolic acid Struktur von Propiolsäure Own 2014-03-04 Emeldir <span class signature-talk >talk</span> Chemical structure verified https //upload wikimedia org/wikipedia/commons/e/e0/Propiolic_acid_200 svg 1S/C3H2O2/c1-2-3 4 5/h1H H 4 5 UORVCLMRJXCDCP-UHFFFAOYSA-N 471-25-0 207-437-8 PD-chem Carboxylic acids Alkyne derivatives |