Chemicals
Fabric and Textile
Light industry
Instant food
Chemicals(Medicine intermediate)
　PRODUCT NAME: hyaluronic acid
　
　CAS NO: 9004-61-9
　
　
ITEM
STANDARD
ANALYSIS RESULT
　Appearance
white powder
white powder
　Glucuronic acid
42.0% min
43.1%
　Molecular weight
1.0*(102)3 min
1.1*(102)3 min
　Protein
0.1% max
0.05%
　PH
6.0-7.5
6.90
　Loss on drying
20 ppm max
7.0
　Heavy metals
20 ppm max
8.5 ppm
　Arsenic
2 ppm max
1 ppm
　Bacteria count
100 cfu/g max
9 cfu/g
　salmonella
negative
negative
　Pathogenic germ
negative
negative

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