| L-TRYPTOPHAN
CAS No: 73-22-3
Molecular Formula: C11H12N2O2
Molecular Weight: 204.23
Appearance: White crystal or crystalline powder and material produced by fermentation technology.
Specification:
| Items |
FCC IV |
USP24 |
| Assay(on dry basis) |
98.5% ~ 101.5% |
98.5%~101.5% |
| Specific rotation |
-30.0~-33.0 |
-29.4~-32.8 |
| Chloride(Cl) |
-- |
0.05% max |
| Sulfate (SO4) |
-- |
0.03% max |
| Iron(Fe) |
-- |
0.003% max |
| Heavy metals (Pb) |
20ppm max |
15ppm max |
| Arsenic |
1.5ppm max |
1.5ppm max |
| Loss on drying |
0.3% max |
0.3 % max |
| Residue on ignition |
0.1% max |
0.1 % max |
| pH value |
-- |
5.5 ~ 7.0 |
Package: In kraft paper bags or in fiber drum of 25KG net each.
Application: Used in pharmaceutical materials, food ingredients etc.
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