Methyl phenylpropiolate
Methyl phenylpropiolate (CAS: 4891-38-7), with the molecular formula C<sub>10</sub>H<sub>8</sub>O<sub>2</sub> and a molecular weight of 160.17 g/mol, is a versatile organic ester. It is commonly employed as a building block in chemical synthesis, particularly within the realm of organic chemistry. Its structure, featuring a phenyl ring conjugated with an propiolate ester group, makes it valuable for creating more complex molecular architectures in research and development settings.

Organic Synthesis Intermediate
Methyl phenylpropiolate serves as a key intermediate in the synthesis of various organic compounds. Its reactive alkyne and ester functionalities allow for participation in a range of chemical transformations.
Research and Development
This compound is utilized in academic and industrial research for developing novel molecules and exploring new synthetic methodologies. It is a valuable tool for chemists designing complex structures.
Building Block for Heterocycles
The structure of methyl phenylpropiolate lends itself to the construction of heterocyclic systems through cycloaddition reactions and other synthetic pathways.
| Molecular weight | 160.17 |
|---|---|
| Linear formula | C6H5C≡CCO2CH3 |
| Assay | 97% |
| Boiling point | 109-112 °C/2 mmHg(lit.) |
| Density | 1.086 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5590(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Methyl phenylpropiolate used for?
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Methyl phenylpropiolate is primarily used as a building block in organic synthesis and for research and development purposes in creating complex molecules and exploring new synthetic routes.
What is the CAS number and formula for Methyl phenylpropiolate?
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The CAS number is 4891-38-7, and the molecular formula is C<sub>10</sub>H<sub>8</sub>O<sub>2</sub>.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl phenylpropiolate with a minimum purity of 97%. We do not represent this product as USP, BP, or EP grade.
How should Methyl phenylpropiolate be handled safely?
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Methyl phenylpropiolate is classified with a Warning signal word and hazard statements H315 (Causes skin irritation) and H319 (Causes serious eye irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be used. Ensure adequate ventilation and use a suitable respirator if necessary.
Is Methyl phenylpropiolate a controlled substance?
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Based on the provided data, Methyl phenylpropiolate is not indicated as a controlled substance.
How is Methyl phenylpropiolate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Methyl phenylpropiolate, adhering to all relevant shipping and export regulations.
How can I request a sample or quote for Methyl phenylpropiolate?
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To request a sample or quote, please contact our sales team through the provided channels on the Tech Serve Solutions website.
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