C11H12N2O2
L-Tryptophan | CAS NO:73-22-3 |
Chemical Name | L-Tryptophan |
Molecular Structure | |
Molecular Formula | C11H12N2O2 |
Molecular Weight | 204.23 |
Characteristics | White to yellowish white crystalline powder |
Packing |
25㎏/drum,25㎏/carton |
Quality Standard | AJI92/USP28/EP5/FCCIV |
Specification
Specific rotation[a]D20° |
-30.5°~-32.5° |
State of solution |
Clear |
(Tranamittance) |
≥95.0% |
Chloride(Cl) |
≤0.02% |
Ammonium(NH4) |
≤0.02% |
Sulfate(SO4) |
≤0.020% |
Iron(Fe) |
≤20PPm |
Heavy metals(Pb) |
≤10PPm |
Arsenic(As2O3) |
≤1PPm |
Other amio acids |
conforms |
Loss on drying |
≤0.20% |
Residue on ignition(Sulfated) |
≤0.10% |
Assay |
99.0~100.5% |
PH |
5.4~6.4 |