Ashland Natrosol 250M PHARM is a medium-viscosity free-flowing granular pharmaceutical excipient in the hydroxyethyl cellulose series, tailored for scenarios such as pharmaceutical solid preparations, cosmetics, personal care and food. As a light cream to white odorless granule and non-ionic water-soluble polymer, it has excellent medium-viscosity thickening and stabilizing effects
Medium Viscosity & Wide Thickening Adaptability - Viscosity of 2% aqueous solution 5400-6500 mPa·s, easily soluble in cold and hot water, suitable for thickening and stabilizing of multiple dosage forms
Transparent Film-Forming & Salt Resistance - Forms transparent and shiny films, salt resistant and compatible with surfactants, suitable for complex formulation systems
Biocompatible & Safe - Complies with pharmacopoeia and FDA standards, non-irritating, suitable for oral, external and other dosage forms
Granular & Easy Processing - Dry granular form for easy dispersion and addition, convenient formulation, improving production efficiency and reducing dust pollution
Pharmaceutical Solid Preparations - Used as tablet binder and hydrophilic gel matrix material, improving preparation stability and dissolution controllability.
Cosmetic Thickening & Stabilization - Used in essences, creams and shampoos, thickening and stabilizing foam, improving skin feel and long-term stability of products.
Food Additives - Used as thickener and stabilizer, suitable for beverages, sauces, ice creams, etc., improving taste and stability.
Oral Care Products - Used in toothpaste and mouthwash, thickening and bonding, improving user experience and product stability.
| Chemical Name | Hydroxyethyl Cellulose (HEC) |
| CAS No. | 9004-62-0 |
| Appearance | Light cream to white free-flowing granules |
| Odor | Odorless |
| Molecular Weight | Approx. 720,000 |
| Viscosity (2% aqueous solution, 20°C) | 5400-6500 mPa·s |
| Substitution Degree (Hydroxyethoxy) | 2.0-2.5 |
| pH Value (2% aqueous solution) | 6.0-8.5 |
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