Propiolic acid
ALDRICH/P51400 - 95%
Synonym: Acetylenecarboxylic acid; Propynoic acid
CAS Number: 471-25-0
Empirical Formula (Hill Notation): C3H2O2
Molecular Weight: 70.05
EC Number: 207-437-8
MDL Number: MFCD00004360
Linear Formula: HC≡CCOOH
Product Type: Chemical
| assay | 95% |
| bp | 102 °C/200 mmHg (lit.) |
| density | 1.138 g/mL at 25 °C (lit.) |
| impurities | ≤6.0% acetic acid |
| InChI | 1S/C3H2O2/c1-2-3(4)5/h1H, |
| InChI key | UORVCLMRJXCDCP-UHFFFAOYSA |
| mp | 16-18 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | OC(=O)C#C |
| storage temp. | 2-8°C |
| Application: | Reagent employed in the synthesis of transition metal complexes, haloalkyl propiolates, and halopropenoates. |
| Packaging: | 5, 25, 100 g in glass bottle |
| Symbol | ![]() ![]() GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H226 - H301 - H310 - H314 |
| Precautionary statements | P210 - P233 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 24/25-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2920 3(8) / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 136.4 °F - closed cup |
| Flash Point(C) | 58 °C - closed cup |
| Purity | 95% |
| bp | 102 °C/200 mmHg (lit.) |
| mp | 16-18 °C (lit.) |
| Density | 1.138 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |




