Molekula
Methyl propiolate
Methyl propiolate is a reactive alpha,beta-unsaturated ester used in organic synthesis, particularly in Diels-Alder reactions and as a building block in pharmaceutical and agrochemical research. It is a clear, colorless to pale yellow liquid with a pungent odor. CAS: 922-67-8, Molecular Formula: C4H4O2, Molecular Weight: 84.07 g/mol. Store at 2 to 8 °C. Hazardous: Signal word Danger. Molekula supplies Methyl propiolate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Methyl propiolate is a reactive alpha,beta-unsaturated ester used in organic synthesis, particularly in Diels-Alder reactions and as a building block in pharmaceutical and agrochemical research. It is a clear, colorless to pale yellow liquid with a pungent odor. CAS: 922-67-8, Molecular Formula: C4H4O2, Molecular Weight: 84.07 g/mol. Store at 2 to 8 °C. Hazardous: Signal word Danger. Molekula supplies Methyl propiolate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow liquid |
| Identification | Conforms to reference |
| Specific Gravity | 1.006-1.012 |
| Purity | ≥97.0% |
| Infrared Spectrum | Conforms to structure |
| Refractive Index n20 / D | 1.407-1.41 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 16 C |
| Transport Class | 3 |
| Packing Group | II |
| Shelf Life | 48 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 922-67-8 |
| Molecular Formula | C4H4O2 |
| Molecular Weight | 84.07 |
| SMILES | COC(=O)C#C |
| EC / UN Number | 3272 |
| REACH Code | Y110 |
| HTS Code | 29161950 |
| Tariff Code | 2916199590 |
Safety & GHS
-
Explosive
GHS01
-
Oxidizing
GHS03
Hazard statements
- H225 Highly flammable liquid and vapour
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P240 Ground/bond container and receiving equipment
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is methyl propiolate used for?
Methyl propiolate is primarily used as a synthetic intermediate in organic chemistry, particularly in the synthesis of heterocyclic compounds and pharmaceuticals.
What is the chemical formula and molecular weight of methyl propiolate?
The chemical formula is C4H4O2 and the molecular weight is 84.07 g/mol.
How should methyl propiolate be stored?
Methyl propiolate should be stored at temperatures between 2 to 8 °C and protected from light and moisture.
What grade of methyl propiolate is available?
Molekula supplies methyl propiolate in technical grade; custom grades may be available upon request.
Can Molekula supply methyl propiolate in bulk?
Yes, Molekula can supply methyl propiolate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a methyl propiolate order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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