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It can be used for injection, food additives, health care, cosmetics and sports nutrition, etc.
Grade | Pharma grade |
MW | 204.23 |
Density | (20 o C)400g/cm 3 |
Melting point | 290 °C |
UN No. | |
CAS No. | 73-22-3 |
Assay (as C
11 H
12 N
2 O
2 )
|
≥98.5%
|
Specific rotation [a]
20
D
|
-30.0°~-32.5°
|
Identity
|
passes test
|
Acidity
|
5.4~6.4
|
Transmittance of solution
|
≥95.0%
|
Chloride
|
≤0.02%
|
Sulfate
|
≤0.02%
|
Ammonium
|
≤0.02%
|
Foreign amino acid
|
≤0.5%
|
Loss on drying
|
≤0.2%
|
Ignition residue
|
≤0.1%
|
Iron
|
≤0.002%
|
Heavy metals
|
≤0.001%
|
Arsenic
|
≤0.0001%
|
Bacterial endotoxin, EU
|
50 (for injection)
|
CAS No.: 73-22-3 | Other Names: L-Tryptophan | MF: C11H12N2O2 |
EINECS No.: 200-795-6 | FEMA No.: ******* | Place of Origin: Guangdong, China, |
Type: Flavoring Agents, Nutrition Enhancers, Pr... | Brand Name: hanjiang | Model Number: 25kg/drum |
color: white powder |