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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
Availability:

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 Test —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


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