Carboxymethylcellulose and its salts
Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms: > Cellulose ethers: > Carboxymethylcellulose and its salts
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Subheadings
Products classified under HTS 3912.31.00
Sodium Carboxymethylcellulose (CMC) Powder
Sodium carboxymethylcellulose is a water-soluble cellulose ether derived from cellulose, used as a thickener and stabilizer in food and pharmaceuticals. It falls under HTS 3912.31.00 as it is explicitly carboxymethylcellulose and its salts in primary form, meeting the 95% monomer content requirement for classification.
Carboxymethylcellulose Sodium USP Grade
Pharmaceutical-grade sodium carboxymethylcellulose used in eye drops and tablet binders, supplied as a fine white powder. Classified under HTS 3912.31.00 for carboxymethylcellulose salts in primary forms, not further processed into articles.
CMC Food Grade Type 7F
Food-grade carboxymethylcellulose sodium (Type 7F) with medium viscosity, used in ice cream and gluten-free baking as stabilizer. HTS 3912.31.00 applies to this primary form cellulose ether salt without further processing.
Carboxymethylcellulose Calcium Salt
Calcium salt of carboxymethylcellulose used in low-sodium formulations and as a suspending agent. Falls squarely under HTS 3912.31.00 as a carboxymethylcellulose salt in primary powder form.
Industrial CMC LV (Low Viscosity)
Low viscosity sodium carboxymethylcellulose for detergents, paper coatings, and textiles. Classified in HTS 3912.31.00 as primary form cellulose ether salt per polymer content rules.
Pharmaceutical Excipient CMC 12M8P
High-purity CMC 12M8P (medium viscosity, pharma grade) for sustained-release tablets. HTS 3912.31.00 covers this carboxymethylcellulose salt in primary form.
Sodium CMC for Toothpaste Grade
Specialty sodium carboxymethylcellulose for toothpaste thickening, providing suspension and stability. Primary form classification under HTS 3912.31.00 as CMC salt.
CMC Technical Grade FH9
Fast hydration technical grade FH9 CMC for oil drilling muds and ceramics. HTS 3912.31.00 for this unmodified carboxymethylcellulose salt powder.
Crosscarmellose Sodium NF
Crosscarmellose sodium, a superdisintegrant CMC derivative for tablets (though sometimes debated, primarily classified here). HTS 3912.31.00 as carboxymethylcellulose salt.
CMC 7HOF Food Stabilizer
High occupancy 7HOF grade CMC for dairy and sauces, providing creaminess without fat. Primary form under HTS 3912.31.00.