H-HPC
CAS#: 9004-64-2
Standard: USP/BP/EP
High-substitution hydroxypropyl cellulose (H-HPC) is a non-ionic cellulose ether widely used in pharmaceutical formulations due to its excellent solubility, film-forming ability, and biocompatibility. It serves as a versatile excipient in oral solid dosage forms, topical preparations, and ophthalmic products.
|
Test Item |
Specification |
|
Appearance |
White powder or granules |
|
Hydroxypropyl % |
53.4-80.5 |
|
Loss on drying % |
≤5.0 |
|
Residue on ignition % |
≤0.5 |
|
Heavy Metal ppm |
≤10 |
|
Arsenic ppm |
≤3 |
|
PH |
5.0~8.0 |
1) Tablet Coatings
Acts as a film-coating agent for immediate-release or delayed-release tablets.
(2) Controlled Release Formulations
Modulates drug release through gel formation and diffusion barriers.
(3) Ophthalmic Preparations
Enhances viscosity and retention time of eye drops.
(4) Suspension Stabilization
Prevents particle settling in oral or parenteral suspensions.

Package: 25kg/Drum
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