| melting point | 171-173 °C |
| boiling point | 103-105 °C (lit.) |
| density | 0.945 g/mL at 25 °C (lit.) |
| Refractive index | n20/D 1.408(lit.) |
| flash point | 50 °F |
| Storage conditions | Inert atmosphere,2-8°C |
| form | Liquid |
| proportion | 0.945 |
| colour | Clear colorless |
| Water solubility | Not miscible in water. |
| BRN | 605462 |
| stability | Stable. Highly flammable. Incompatible with strong oxidizing agents, bases, acids. |
| InChIKey | IMAKHNTVDGLIRY-UHFFFAOYSA-N |
| CAS | 922-67-8 |
| NIST Chemical Information | 2-Propynoic acid, methyl ester(922-67-8) |
1. Used as N-3 protecting reagent for uridine and thymidine;
2. One-pot four-component synthesis of 1,2,3,5-benzenetetracarboxylate for Ph3P-promoted
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