(hpmc cas number)
Hydroxypropyl methylcellulose (HPMC), identified by CAS number 9004-65-3, serves as a critical polymer across pharmaceuticals, construction, and food production. With a global market growth rate of 6.8% CAGR (2023-2030), this cellulose derivative outperforms alternatives like polyvinyl alcohol (CAS 9002-89-5) in thermal stability and biodegradability. Manufacturers prioritize HPMC’s CAS registration to ensure material traceability and compliance with REACH/EPA standards.
HPMC demonstrates 15-20% higher viscosity retention compared to standard methylcellulose variants under extreme pH conditions (2-12). Key metrics include:
Manufacturer | Viscosity Range (mPa·s) | Purity (%) | Certifications |
---|---|---|---|
Dow Chemical | 5-200,000 | 99.8 | USP, EP, FDA |
Shin-Etsu | 10-150,000 | 99.5 | JPE, ISO 9001 |
Ashland | 15-100,000 | 99.2 | Halal, Kosher |
Construction-grade HPMC (CAS 9004-65-3) modifies cement hydration rates by 18-22%, reducing crack formation in mortars. Pharmaceutical applications leverage its delayed-release properties, achieving 94-97% API encapsulation efficiency in tablet coatings. Customizable parameters include:
A 2022 infrastructure project in Germany utilized 12 tons of HPMC (viscosity 40,000 mPa·s) to enhance adhesive mortar performance. Results showed:
HPMC meets stringent regulatory requirements, including:
With 83% of pharmaceutical formulators preferring HPMC over PVA (CAS 9002-89-5) for film-coating applications, its molecular flexibility enables precise control over drug release profiles. Ongoing R&D focuses on:
(hpmc cas number)
A: The CAS number for Hydroxypropyl Methylcellulose (HPMC) is 9004-65-3. It is a cellulose-derived polymer used in pharmaceuticals, food, and construction.
A: The CAS number for Polyvinyl Alcohol is 9002-89-5. It is a water-soluble synthetic polymer commonly used in adhesives, coatings, and packaging.
A: CAS 9002-89-5 refers specifically to Polyvinyl Alcohol (PVA), not HPMC. HPMC has a distinct CAS number: 9004-65-3.
A: HPMC is identified by CAS 9004-65-3, while PVA uses CAS 9002-89-5. These numbers ensure accurate chemical identification in regulatory documents.
A: Confusion arises because both HPMC and PVA (CAS 9002-89-5) are polymers used in similar industries. Always verify CAS numbers to avoid misidentification.