Chondroitin Sulfate Sodium | GHW International

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Chondroitin Sulfate Sodium

Main Applications: Chondroitin sulfate (CS) is a type of glycosaminoglycan covalently linked to proteins to form proteoglycans. Its primary functions include promoting cartilage repair, improving joint function, and relieving joint pain.

Molecular formula : (C₁₄H₂₁NO₁₄S)n

Molecular weight: 479.368

Characteristics: White or off-white powder

Physicochemical Specifications:

INSPECTION STANDARD
No.	ITEM	STANDARD	METHOD
1	Appearance	White or off-white powder	Visual
2	Clarity and color	≤0.350	USP<857>
3	Identification A.Spectroscopic Identification Tests B.Identification Tests—General	Meets the Requirement Meets the Requirement	USP<197> USP<191>
4	Electrophoretic purity	≤2.0%	USP 43
5	Content by CPC	≥90.00%,on the dried base	USP<541>
6	Specific Rotation	-20.00°~-30.00°	USP<781S>
7	pH Value	5.5-7.5	USP<791>
8	Loss on Drying	≤10.00%	USP<731>
9	Residue on Ignition	20%～30%	USP<281>
10	Chloride	≤0.50%	USP<221>
11	Sulfate	≤0.24%	USP<221>
12	Limit of Protein	≤6.0%	USP<857>
13	Heavy Metals	≤20ppm	USP<231>MethodⅡ
14	Residual Solvents(Ethanol)	≤5,000ppm	Method in house
15	Total bacterial count	≤1,000cfu/g	USP<2021>
16	Yeast and Mold	≤100 cfu/g	USP<2021>
17	Sieve Analysis	100% through 80 mesh	Method in house