Methyl propiolate Chemical Properties

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 temp. 

Inert atmosphere,2-8°C

solubility 

Chloroform (Sparingly), Methanol (Sparingly)

form 

Liquid

Specific Gravity

0.9450

color 

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 DataBase Reference

922-67-8(CAS DataBase Reference)

NIST Chemistry Reference

2-Propynoic acid, methyl ester(922-67-8)

Safety Information

Hazard Codes 

F,Xi

Risk Statements 

11-36/37/38-36

Safety Statements 

26-36-36/37/39-23-16-33-7/9

RIDADR 

UN 3272 3/PG 2

WGK Germany 

3

RTECS 

UE0050000

F 

19

Hazard Note 

Highly Flammable/Harmful

HazardClass 

3

PackingGroup 

II

HS Code 

29161980

MSDS

• Language:English Provider:2-Propynoic acid methyl ester
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Methyl propiolate Usage And Synthesis

Chemical Properties

colourless to light yellow liquid

Uses

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.

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