Methyl propiolate
Synonym(s):Methyl acetylenecarboxylate
- CAS NO.：922-67-8
- Empirical Formula: C4H4O2
- Molecular Weight: 84.07
- MDL number: MFCD00008572
- EINECS: 213-083-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-01-27 09:38:02
What is Methyl propiolate?
Chemical properties
colourless to light yellow liquid
The Uses of Methyl propiolate
Methyl propiolate was used in the synthesis of polysubstituted 3-arylaminoacrylate and tetrahydropyrimidin-2-one derivatives. It was also used as a thiol derivatizing agent for capillary electrophoresis.
Purification Methods
Purify the propiolate by fractional distillation and collecting the middle fraction, note that propiolic acid has a high b [144o(dec)/760mm]. [Beilstein 2 IV 1688.] LACHRYMATORY.
Properties of Methyl propiolate
| Melting point: | 171-173 °C |
| Boiling point: | 103-105 °C (lit.) |
| Density | 0.945 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 50 °F |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | Chloroform (Sparingly), Methanol (Sparingly) |
| form | Liquid |
| color | Clear colorless |
| Specific Gravity | 0.9450 |
| Water Solubility | Not miscible in water. |
| BRN | 605462 |
| Stability: | Stable. Highly flammable. Incompatible with strong oxidizing agents, bases, acids. |
| CAS DataBase Reference | 922-67-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propynoic acid, methyl ester(922-67-8) |
Safety information for Methyl propiolate
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Methyl propiolate
| InChIKey | IMAKHNTVDGLIRY-UHFFFAOYSA-N |
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