Arthritis has become the leading cause of disability worldwide. As arthritis pain intensifies and mobility is restricted, it can lead to temporary or permanent loss of working ability, causing significant social and economic losses. D-glucosamine sulfate, due to its high activity and easy absorption, is a major matrix of articular cartilage and synovial fluid, and is increasingly widely used in the treatment of arthritis.
Detection Methods
(1) Dissolution: Dissolve D-glucosamine sulfate in a solvent at 0°C; the solvent is a saturated ammonium sulfate solution or dimethyl sulfoxide; the weight-to-volume ratio of D-glucosamine sulfate to the solvent is 100 mg: 1 ml; filter the solution to obtain a solid;
(2) Detection: Detect the obtained solid with chloride and sulfate ions according to the detection methods for potassium chloride (or sodium chloride) and potassium sulfate (or sodium sulfate); the detection methods for chloride and sulfate ions are based on Appendix VIII A (Chloride Test) and Appendix VIII B (Sulfate Test) of the 2010 edition of the Chinese Pharmacopoeia, Part II;
(3) Judgment: Based on the results of the above detection of chloride and sulfate ions, determine the D-glucosamine sulfate prepared by different methods. The salts are distinguished as follows: In a saturated ammonium sulfate solution, the completely soluble form is either D-glucosamine sulfate (potassium chloride) or D-glucosamine sulfate (sodium chloride). If there is an insoluble residue of potassium sulfate, the original product is a mixture of D-glucosamine hydrochloride and potassium sulfate; if there is an insoluble residue of sodium sulfate, the original product is a mixture of D-glucosamine hydrochloride and sodium sulfate. In dimethyl sulfoxide (DMSO), if the insoluble residue is potassium chloride, the original product is D-glucosamine sulfate (potassium chloride); if the insoluble residue is sodium chloride, the original product is D-glucosamine sulfate (sodium chloride). In dimethyl sulfoxide (DMSO), if the insoluble residue is potassium sulfate, the original product is a mixture of D-glucosamine hydrochloride and potassium sulfate; if the insoluble residue is sodium sulfate, the original product is a mixture of D-glucosamine hydrochloride and sodium sulfate.
Applications: D-glucosamine sulfate is a white crystalline powder, odorless, with a slightly salty taste. It is readily soluble in water, slightly soluble in methanol, and insoluble in organic solvents such as ethanol. It is used as a pharmaceutical raw material.
FAQs
Q:How long is the supply cycle?
A: Regular orders will be shipped within 3 working days, while large orders (over 2 tons) require confirmation 10 days in advance. We have a regular safety stock and cooperate with multiple logistics companies to ensure timely transportation. Special needs can be negotiated for expedited processing.
Q:Can you provide technical support?
A: We have a professional R&D team that can provide descriptions of raw material characteristics, formula recommendations, and application cases (such as tablets, powders, soft capsules, etc.). If you need assistance with product filing, we can also provide compliance guidance.
Q:What is the minimum order quantity (MOQ)?
A:The standard MOQ is 100kg, while the MOQ for some high-value raw materials is 10kg. New customers can apply for a trial order (1-5kg) first, and the sample fee can be deducted from subsequent orders.
Q:What are the payment methods?
A:Support international trade common payment methods such as T/T and letter of credit (L/C).
Natural Field Co., Ltd. is a technology-driven enterprise dedicated to the research, production, and sales of health-care raw materials, cosmetic ingredients, and plant extracts. Our product warehouse and quality control center are located in Caotang Industrial Park, Xi’an High-tech Zone, China. The company has obtained multiple certifications, including Kosher, ISO9001, HACCP, SC production license, and food export enterprise registration. Following a resource-sharing and win-win business model, Natural Field has established a 2,000-square-meter R&D center in Shanghai and collaborates with experienced doctors and professors from both domestic and international institutions to strengthen its technical capabilities. To better support our customers, we have also introduced a dedicated product operation service model, where each project is guided by a professional team including QA, QC, product engineers, and technical experts to ensure reliable quality and comprehensive service.
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