Products

D-(+)-Tryptophan(CAS:153-94-6)

Product name: D-(+)-Tryptophan

CAS No.: 153-94-6

Molecule Formula:C11H12N2O2

Molecule Weight:204.23

Purity: 99.0%

Package: 25kg/drum

Description:White crystalline powder

Manufacture Standards:AJI/USP
INQUIRY
Description
TESTING ITEMS      SPECIFICATIONS RESULTS
Appearance White crystalline powder Conforms
Specific Rotation +30.5°~+32.5° +31.3°
Transmittance 95.0% 95.6%
Chloride 0.02% <0.02%
Ammonium 0.02% <0.02%
Sulfate 0.02% <0.02%
Iron 20ppm <20ppm
Heavy metals 10ppm <10ppm
Arsenic 1ppm <1ppm
Loss on drying 0.20% 0.12%
Residue on ignition 0.10% 0.05%
Assay 99.0%~101.0% 99.80%
PH 5.5~6.4 6.1
Conclusion:        
The Product Conforms to AJI/USP.