IUPAC Name: (2S,3S,4S,5R,6R)-6-[(2R,3R,4R,5R,6R)-3-acetamido-2,5-dihydroxy-6-sulfooxyoxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid
CAS Number: 9007-28-7
Chemical Formula: C₁₃H₂₁NO₁₅S
Molecular Weight: 463.37
EC Number: 232-696-9
Apperance: White or almost white powder
Identification: A. Red cuprous oxide precipitate B. Violet spots C. Sulfate
Loss on Drying: ≤10.0% (105°C,4hours)
Residue on ignition: 20.0%~30.0%（calculated on the dried basis）
Chloride: ≤0.6%
Absorbance: A260 ≤0.28; A280 ≤0.18
Assay: Amidohexose (with glucosamine (C6H13O5N) which should not be less than 30.0%, calculated on the dried basis.

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Chondroitin Sulfate (CAS 9007-28-7), sourced from porcine cartilage tissue, is supplied by BEIJING GEYUANTIANRUN BIO-TECH CO., LTD. to CP2010 specification across food, pharmaceutical, injection, and veterinary grades, with samples available. Presented as a white or almost white, slightly salty, hygroscopic powder soluble in water, it is used clinically for joint disease treatment alongside glucosamine to relieve pain and support cartilage regeneration, for corneal moisture retention in dry-eye relief, for conditions such as neuralgia, migraine, and cardiovascular disease, and as an ingredient in health foods and cosmetics; it is distributed across North and South America, Europe, Asia, Australasia, the Middle East, and Africa.