Category:
Plant Extracts
CAS NO:
73-22-3
Standard:
In-house Standards,
Product Information |
Product name |
L-Tryptophan |
CAS No. |
73-22-3 |
Molecular Formula |
C4H9NO3 |
Certification |
ISO-9001/FAMI QS |
Quality standard |
99% up by HPLC |
Appearance |
White to light yellow crystal powder |
COA of L-Tryptophan |
Testing Item |
Standard |
Result |
Appearance |
White to light yellow crystal powder |
conforms |
Assay/% |
≥98.00 |
99.10 |
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 |
Conclusion |
Meet with the Enterprise Standard |
Usage |