PRODUCT Properties
| Melting point: | 115-116 °C |
| Boiling point: | 319.2±25.0 °C(Predicted) |
| Density | 1.429±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| solubility | Acetonitrile (Slightly), DMSO (Slightly) |
| form | Solid |
| pka | 2.09±0.10(Predicted) |
| color | Pale Beige to Light Beige |
Description and Uses
4-Hydroxybut-2-ynoic Acid (cas# 7218-52-2) is a useful reagent for the green preparation of polyseleno-substituted enamines.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36/37/39 |
