4-Methylphthalic anhydride
4-Methylphthalic anhydride (CAS 19438-61-0, C9H6O3) is a white to off-white crystalline solid with a molecular weight of 162.14 g/mol. As a derivative of phthalic anhydride, it serves as a valuable building block in organic synthesis. Its reactive anhydride functionality makes it suitable for incorporation into polymers and as an intermediate in the production of various chemical compounds.
Polymer Science
Utilised as a monomer or co-monomer in the synthesis of polyesters and polyimides, contributing specific properties to the final polymer structure.
Organic Synthesis Intermediate
Serves as a reactive intermediate for the preparation of dyes, pigments, and other complex organic molecules due to its anhydride group.
Materials Science
Incorporated into the development of novel materials where its chemical structure can impart desired thermal or mechanical characteristics.
| Molecular weight | 162.14 |
|---|---|
| Empirical formula | C9H6O3 |
| Assay | 95% |
| Boiling point | 295 °C(lit.) |
| Melting point | 90-92 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 4-Methylphthalic anhydride used for?
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4-Methylphthalic anhydride is primarily used as a monomer in polymer science for creating polyesters and polyimides, and as an intermediate in organic synthesis for compounds such as dyes and pigments.
What is the CAS number and formula for 4-Methylphthalic anhydride?
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The CAS number for 4-Methylphthalic anhydride is 19438-61-0, and its molecular formula is C9H6O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methylphthalic anhydride with an assay of 95%. This product is not represented as USP, BP, or EP grade.
How should 4-Methylphthalic anhydride be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure good ventilation. It is classified as a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is 4-Methylphthalic anhydride a controlled substance?
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The provided data does not indicate that 4-Methylphthalic anhydride is a controlled substance.
How is 4-Methylphthalic anhydride packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals according to international regulations and customer requirements.
How can I request a sample or quote for 4-Methylphthalic anhydride?
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To request a sample or a quote for 4-Methylphthalic anhydride, please contact our sales team through the website or by phone.
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