Grade: Pharmaceutical Grade
Factory Location: Xiamen, Fujian
Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East
Monthly Production Capacity: 1000kg
Packaging Information: 25kg/drum 1kg/bottle
Delivery Lead Time: 7 days after payment
Sample Provided: yes
Payment Terms: L/L
Product name |
L-Tryptophan |
CAS No. |
73-22-3 |
Molecular Formula |
C11H12N2O2 |
Molecular Weight |
204.228 |
Quality Standard |
99% up by HPLC, Food grade/Feed grade |
Appearance |
Brown yellow powder |
Testing Item |
Standard |
Result |
Appearance |
White to light yellow crystal powder |
conforms |
Assay/% |
≥99.00% |
99.70% |
Specific Rotation |
-29.0° -32.8° |
-29.3° |
Residue on Ignition/% |
≤0.50 |
0.40 |
Loss on Drying/% |
≤0.50 |
0.30 |
Heavy Metal(Pb)/% |
≤5 |
<5 |
Arsenic(As)/% |
≤2 |
conforms |
Mercury(Hg)/% |
≤0.1 |
conforms |
Cadmium(Cd)/% |
≤2 |
conforms |
Salmonella |
Negative in 10g |
conforms |
PH |
5.0~7.0 |
conforms |