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L-Tryptophan

CAS No.:

153-94-6
Molecular formula: C11H12N2O2
Molecular weight: 204.228
Property: white crystal powder
Stucture:
Packing; 25kgs fiber drum; 25kgs bag
Specifications: Identification:                                  pass the test
Specific rotation:                              -29.4  --  -32.8
Chloride:                                              0.05%max
Sulfate:                                                 0.03%max
Iron:                                                       0.003%max
Heavy metals:                                       0.0015%max
Organic Volatile impurities:              meets the requirements
Loss on drying:                                  0.3%max
Residue on ignition:                           0.10%max
Assay:                                                  98.5% - 101.5%
PH value:                                              5.5 – 7.0

 


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