mono-Methyl isophthalate
Mono-Methyl Isophthalate (CAS: 1877-71-0), with the molecular formula C₆H₄(CO₂H)CO₂CH₃ and a molar mass of 180.16 g/mol, is a valuable organic building block. This ester derivative of isophthalic acid serves as a key intermediate in chemical synthesis. Its primary application lies in the production of specialised polymer films, contributing to the development of advanced materials.

Polymer Film Synthesis
Mono-Methyl Isophthalate is utilised as a monomer or co-monomer in the synthesis of specific polymer films. It contributes unique properties to the final polymer structure, making it suitable for specialised applications.
Chemical Synthesis Intermediate
As a functionalised aromatic compound, it serves as a versatile intermediate in the construction of more complex organic molecules. Its ester and carboxylic acid groups offer multiple reaction pathways for synthetic chemists.
Organic Building Block
This compound falls into the category of organic building blocks, offering a pre-functionalised aromatic core for various research and development projects in organic chemistry and materials science.
| Molecular weight | 180.16 |
|---|---|
| Linear formula | C6H4(CO2H)CO2CH3 |
| Assay | 97% |
| Application | Exploited in the synthesis of polymer films.1 |
| Melting point | 194-196 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 mono-Methyl Isophthalate used for?
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Mono-Methyl Isophthalate is primarily exploited in the synthesis of polymer films and serves as an intermediate in general chemical synthesis. It is classified as an organic building block.
What are the CAS number and formula for mono-Methyl Isophthalate?
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The CAS number for mono-Methyl Isophthalate is 1877-71-0, and its linear formula is C₆H₄(CO₂H)CO₂CH₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies mono-Methyl Isophthalate with an assay of 97%. TSS does not represent this product as USP, BP, EP, or pharmaceutical grade unless explicitly stated otherwise in the product data.
What are the safety and handling precautions for mono-Methyl Isophthalate?
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Handling mono-Methyl Isophthalate requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Refer to the safety data sheet for comprehensive guidance. The WGK is 3.
How is mono-Methyl Isophthalate packed, shipped, and exported?
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Tech Serve Solutions, a specialist global supplier and exporter since 1998, ensures appropriate packaging for mono-Methyl Isophthalate for safe domestic and international shipment according to all regulatory requirements.
How can I request a quote or sample of mono-Methyl Isophthalate?
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Please contact our sales team via the website or by phone to request a quote or a sample of mono-Methyl Isophthalate. Our experts are ready to assist with your specific requirements.
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