Hydroxypropyl Methyl Cellulose Phthalate
HPMCP, Hypromellose Phthalate
- CAS
- 9050-31-1
- EC
- 618-567-3
- Sectors
- Pharma & Healthcare
Hydroxypropyl Methyl Cellulose Phthalate (CAS 9050-31-1) is a white to off-white, free-flowing cellulose ester containing phthalyl and hydroxypropyl groups, supplied as flakes or granules and used in pharmaceutical enteric coatings for acid resistance and targeted intestinal drug release. It is insoluble in water but soluble in alkaline or organic solvent systems.
Typical Properties
| Molecular weight | 240.304 g/mol |
|---|---|
| Appearance | White to off-white free-flowing flakes or granules |
| Form | neat |
| Melting point | 145 °C (approx) |
| Density | 1.277 g/cm³ |
| GHS signal word | Danger · Acute toxicity, Irritant / harmful |
| HS code | 39129090 |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Hydroxypropyl Methyl Cellulose Phthalate
Applications
Used in pharmaceutical enteric coatings for acid resistance and targeted intestinal drug release. Also serves as a film-forming polymer in controlled-release formulations.
Safety & Risks
Non-toxic and stable; avoid inhalation of fine dust. Keep away from high humidity and direct heat.
Packaging
Delivered in 25 kg paper bags with PE liners. Store sealed in cool, dry, and ventilated areas.