Methyl propiolate

Basic Information

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CAS Number

922-67-8

Molecular Formula

C4H4O2

Molecular Weight

74.08 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Esters

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Chemical Raw Materials Organic Chemicals Nitriles

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Boiling Point

102°C

Density

0.945 g/mL at 25 °C

Water Solubility

Not miscible in water.

Refractive Index

n20/D 1.408(lit.)

SMILES

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COC(=O)C#C

InChI

InChI=1S/C4H4O2/c1-3-4(5)6-2/h1H,2H3

InChIKey

IMAKHNTVDGLIRY-UHFFFAOYSA-N

LogP

0.1792999999999999

Topological Polar Surface Area

26.3 Å²

Hydrogen Bond Donor/Acceptor

0 / 2

Complexity

95.4

Safety Information

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GHS Hazard Pictograms

H225

H315

H319

H335

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class 3 Class 3

Stability

Stable. Highly flammable. Incompatible with strong oxidizing agents, bases, acids.

Synonyms & References

English

Methyl propiolate
Propynoic acid
Methyl propiolate, (Propiolic acid methyl ester)
Methyl acetylenecarboxylate~Propiolic acid methyl ester~Propynoic acid methyl ester
methyl prop-2-ynoate
Propaylic Acid Methyl Ester
Methyl propiolat
Propargylic Acid Methyl Ester
: Methyl propiolat
Methyl Propargylate
Propiolic Acid Methyl Ester
2-Propynoic acid methyl ester
Methyl acetylenecarboxylate
Propiolic acid, methyl ester (6CI, 7CI, 8CI)
(Carbomethoxy)acetylene
(Methoxycarbonyl)acetylene
Methyl 2-propynoate
Methyl acetylenemonocarboxylate
Methyl ethynecarboxylate
Methyl propargylate
Methyl propynoate
NSC 154164
Propynoic acid methyl ester
methyl propiolate
4-02-00-01688 (Beilstein Handbook Reference)
NSC-154164
922-67-8
methyl 2-propynoate
NSC154164
EN300-20478
T88NXO102K

MDL Number

MFCD00008572

Customs Code

29161980

FAQ

What is Methyl propiolate (CAS: 922-67-8)?

Methyl propiolate is an organic compound with the chemical formula C4H6O2. It is a colorless liquid with a sharp, characteristic odor. The compound is known for its reactivity and is commonly used as an intermediate in chemical synthesis. It has a high boiling point and is soluble in organic solvents but not in water. Methyl propiolate is also referred to as methyl 2-propen-2-ylate in some chemical databases.

What are the main uses of Methyl propiolate (CAS: 922-67-8)?

Methyl propiolate is primarily used in the pharmaceutical industry for the synthesis of various drugs and bioactive compounds. It also finds applications in the production of polymers, dyes, and pesticides. In research settings, it serves as a versatile starting material for organic reactions. Additionally, it is used in the fragrance and flavor industry to create synthetic compounds with desired aromatic properties.

Is Methyl propiolate (CAS: 922-67-8) safe?

Methyl propiolate is considered hazardous due to its potential to cause irritation to the eyes, respiratory system, and skin. It should be handled with appropriate protective equipment, such as gloves and a fume hood. Safety standards recommend avoiding inhalation and direct contact. Proper storage and disposal are essential to ensure workplace safety and environmental protection.

How should Methyl propiolate (CAS: 922-67-8) be stored?

Methyl propiolate should be stored in a sealed, light-resistant container in a cool, dry place away from heat and direct sunlight. It is best kept at temperatures below 25°C and in environments with low humidity. Due to its reactivity, it should be stored separately from strong oxidizers and incompatible materials to maintain stability and prevent degradation.