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Hydroxypropyl Methylcellulose is obtained from various natural sources, mainly wood pulp and cotton linters. 1
HPMC's HS code varies depending on its specific properties, such as viscosity,(degree of substitution), and the application it is intended for. Generally, HPMC falls under the HS code 391239, which covers Cellulosic ethers, whether or not chemically modified, in primary forms. However, it is essential to note that this can differ based on the country or region's customs regulations. In conclusion, the properties of HPMC - its water solubility, pseudoplasticity, thermal stability, non-toxicity, film-forming ability, adhesion, and moisture control - are the pillars of its multifaceted use. These attributes have made HPMC an essential ingredient in sectors ranging from construction to pharmaceuticals, demonstrating its profound impact on modern industry. Quality should be your top priority. Look for suppliers who offer HPMC with consistent purity levels and can provide certificates of analysis. Ensure they follow stringent manufacturing standards, adhering to Good Manufacturing Practices (GMP).