D-Glucosamine Sulfate Potassium Chloride (2KCl) CAS 31284-96-5 is a stable white crystalline powder, low hygroscopicity compared to pure glucosamine sulfate. It is a popular joint-care nutraceutical raw material, complying with USP/EP standards for health food and pharma formulations. TNJ Chemical is the leading manufacturer and exporter since 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To inquire more, please contact sales@tnjchem.com
Product Information
Chemical Name: D-Glucosamine Sulfate Potassium Chloride
Synonym: Glucosamine Sulfate 2KCl, D-Glucosamine Sulfate Potassium Salt
CAS No.: 31284-96-5
Molecular Formula: (C₆H₁₄NO₅)₂SO₄·2KCl
Molecular Weight: 605.52
Grade: Food grade / Pharma grade / DC direct compression grade
Chemphysical Properties
Appearance: White free-flowing crystalline powderOdor: Odorless, slight salty-sweet taste
Solubility: Freely soluble in water, insoluble in ethanol
Specific rotation: +47.0° ~ +53.0°
pH (5% aqueous solution): 3.0–5.0
Stability: Low moisture absorption, good for tableting
Quality Specification
| Item | Specification |
|---|---|
| Description | White crystalline powder |
| Identification | 1. IR absorption; 2. Chloride and potassium test; 3. HPLC |
| Specific rotation (25 ℃) | +50.00° ~ +52.00° |
| Residue on ignition, % | 27.00 ~ 29.00 |
| Loss on drying, % | ≤0.50 |
| pH (2% solution, 25 ℃) | 3.00 ~ 5.00 |
| Chloride (Cl⁻), % | 11.10 ~ 12.30 |
| Iron (Fe) | 10 ppm max. |
| Heavy metals (as Pb) | 10 ppm max. |
| Lead (Pb) | 1 ppm max. |
| Arsenic (As) | 3 ppm max. |
| Sulfate (SO₄²⁻), % | 15.5 ~ 16.5 |
| Organic volatile impurities | Meaves requirement |
| Particle size | 30 mesh |
| Bulk density | ≥0.7 g/mL |
| Assay (on dried basis), % | 98.00 ~ 102.00 |
| Microbial test | |
| Total aerobic microbial count | 1000 cfu/g max. |
| Yeast and mold | 100 cfu/g max. |
| Escherichia coli | Negative |
| Salmonella | Negative |
Use & Application
Dietary supplement: Main raw material for joint health capsules, tablets, powder sachets, supports cartilage repair and relieves joint discomfort.
Pharmaceutical raw material: USP/EP grade for osteoarthritis formulations; DC grade suitable for direct compression.
Compound formula: Blended with chondroitin, MSM, hyaluronic acid for joint nutrition products.
Functional food: Nutrition fortifier for functional beverage and solid food.
Packaging & Storage
Packing: 25kg fibre drum with double inner PE bag.
Storage: Keep tightly sealed, cool, dry and shaded warehouse, avoid moisture.
Shelf life: 24 months.




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