Chemicals
Fabric and Textile
Light industry
Instant food
Chemicals(Medicine intermediate)
¡¡PRODUCT NAME: HYDROXYPROLINE
¡¡CAS NO: 51-35-4
¡¡Molecular Formula: C3H9NO3

 
TEST
STANDARD
Appearance
white crystals or crystalline powder
Identification
conforms
State of solution
not less than 95.0%
Specific rotation
-74.0°C - -77.0°C
PH
5.0-6.5
Chloride
0.020% max
Sulfate
0.020%
Ammonium
0.02%
Heavy metals (as Pb)
10 ppm
Iron
10 ppm
Arsenic
1 ppm
Other amino acids
confirms
Loss on drying
0.20%
Residue on ignition
0.10%
Assay
98.5-101.0%

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