Hydroxypropyl methyl cellulose phthalate
Hydroxypropyl methyl cellulose phthalate (CAS: 9050-31-1) is a cellulose derivative designed for specific aqueous solubility characteristics. Its coatings exhibit solubility in mild aqueous acid and readily dissolve in aqueous base. This property makes it a valuable component in formulations requiring controlled release or pH-dependent dissolution. Supplied by Tech Serve Solutions, it is suitable for various material science and polymer applications.
pH-Dependent Coatings
Used as a coating material that becomes soluble in mild aqueous acid. It readily dissolves in aqueous bases at pH levels of 4.2 and above.
Controlled Release Formulations
The pH-dependent solubility allows for its application in systems requiring controlled release of active ingredients, triggered by changes in pH.
Polymer Science Applications
Serves as a functional polymer in various material science and polymer research contexts where specific solubility profiles are advantageous.
| Density | 0.6 g/mL at 25 °C(lit.) |
|---|---|
| Solubility | H2O: soluble (Limited solubility at low pH, soluble at pH ≥4.2.) |
| Application | Coatings become soluble in mild aqueous acid and readily dissolve in aqueous base. |
| Melting point | >145 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
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 Hydroxypropyl methyl cellulose phthalate used for?
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Hydroxypropyl methyl cellulose phthalate is used for pH-dependent coatings and controlled release formulations. Its coatings become soluble in mild aqueous acid and readily dissolve in aqueous base (pH >= 4.2).
What is the CAS number and formula for Hydroxypropyl methyl cellulose phthalate?
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The CAS number is 9050-31-1. The chemical formula is not provided in the available data.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Hydroxypropyl methyl cellulose phthalate primarily for research and development purposes. The specific assay and purity are available upon request, and it is not represented as USP, BP, or EP grade.
What safety precautions should be taken when handling Hydroxypropyl methyl cellulose phthalate?
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When handling, it is recommended to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is advised for respiratory protection.
How is Hydroxypropyl methyl cellulose phthalate packed and shipped?
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Hydroxypropyl methyl cellulose phthalate is carefully packed to ensure product integrity during transit. Tech Serve Solutions exports globally, adhering to all relevant shipping regulations for chemical products.
How can I request a sample or quote for Hydroxypropyl methyl cellulose phthalate?
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To request a sample or a quote, please contact our sales department through the website or by phone, referencing the product name and CAS number 9050-31-1.
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