Name: Ashland Natrosol HX Pharm Hydroxyethyl Cellulose
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Ashland Natrosol HX Pharm Hydroxyethyl Cellulose

Pharmaceutical-grade hydroxyethyl cellulose (HEC) compliant with USP/NF, EP, and JP monographs.
Highly consistent rheology and viscosity performance across batches, ensuring robust process control in manufacturing.
Excellent water solubility and rapid hydration without clumping or gel lumps, even under high-shear mixing conditions.
Non-ionic, low ionic sensitivity, and compatible with a broad range of active pharmaceutical ingredients (APIs) and excipients.
Stable across pH 3–11 and tolerant to moderate heat, supporting sterilization and long-term formulation stability.

Typical Applications Of Ashland Natrosol HX Pharm Hydroxyethyl Cellulose

Ophthalmic solutions — as a viscosity-enhancing and mucoadhesive agent for sustained residence time on the ocular surface.
Topical gels and creams — providing structure, suspension stability, and non-tacky sensory profile.
Oral liquid suspensions — enabling uniform API dispersion and preventing sedimentation during shelf life.
Controlled-release tablet coatings — offering film-forming integrity and controlled erosion kinetics.
Injectable suspensions and depot formulations — acting as a biocompatible suspending and stabilizing polymer.

Chemical Type	Hydroxyethyl cellulose (HEC), non-ionic cellulose ether
Product Form	White to off-white free-flowing powder
Appearance	Odorless, fine granular powder
Primary Applications	Pharmaceutical formulations: ophthalmic, topical, oral, injectable, and coating systems
Key Features	USP/NF, EP, and JP compliant; low heavy metals; low microbial limits
Viscosity (4% aqueous solution, 25°C)	30–50 mPa·s (as specified per batch certificate)
Substitution (DS/MS)	DS ~2.3–2.6; MS ~2.8–3.2
Residue on Ignition	≤1.0%

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E-mail: wangxingqiang@ericwchem.com
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