L-Tryptophan
Specification:
|
L-Tryptophan |
CP2015 |
AJI92 |
USP32 |
USP40 |
|
Description |
White to slightly yellow crystals or crystalline powder |
White to yellowish white crystals or crystalline powder |
--- |
--- |
|
Identification |
Conforms |
Conform |
--- |
Conform |
|
Assay |
≥99.0% |
98.5%~100.5% |
98.5%~101.5% |
98.5%~101.5% |
|
pH |
5.4～6.4 |
5.4～6.4 |
5.5~7.0 |
5.5~7.0 |
|
Transmittance |
≥95.0% |
≥95.0% |
--- |
--- |
|
Loss on drying |
≤0.2% |
≤0.20% |
≤0.3% |
≤0.3% |
|
Residue on ignition |
≤0.1% |
≤0.10% |
≤0.1% |
≤0.1% |
|
Chloride |
≤0.02% |
≤0.020% |
≤0.05% |
≤0.05% |
|
Heavy Metals |
≤0.001% |
≤10ppm |
≤15ppm |
≤15ppm |
|
Iron |
≤0.002% |
≤20ppm |
≤30ppm |
≤30ppm |
|
Sulfate |
≤0.02% |
≤0.020% |
≤0.03% |
≤0.03% |
|
Endotoxin |
＜50EU/g |
--- |
--- |
--- |
|
Arsenic |
≤0.0001% |
≤1ppm |
--- |
--- |
|
Ammonium |
≤0.02% |
≤0.02% |
--- |
--- |
|
Other amino acids |
Conforms |
Meet the requirements |
--- |
--- |
|
Pyrongen |
--- |
Conform |
--- |
--- |
|
Specific Rotation |
-30.0° ～ -32.5° |
-30.0° ～ -32.5° |
-29.4°~-32.8° |
-29.4°~ -32.8° |
|
Organic impurities |
--- |
--- |
--- |
Conforms |
Standard: CP, AJI, USP
Function and application: Nutrition enhancers, pharmaceutical intermediates, food additives, etc.
Packaging: 25kg/drum, others as required
MOQ：25kg
Shelf life: two years
Category
Tags
Recommended
Standard: CP, AJI, USP
Function and application: Flavoring agents, nutritional supplements, food additives, feed additives, pharmaceutical intermediates, flavor enhancers, etc
Packaging: 25kg/bag (drum), others as required
MOQ：25kg
Shelf life: two years
Standard: AJI
Function and application: Nutritional supplements, pharmaceutical intermediates, etc.
Packaging: 25kg/bag (drum), others as required
MOQ：25kg
Shelf life: two years
Standard: AJI, CP, USP, FCC
Function and application: Food additives, nutritional supplements, pharmaceutical intermediates, etc.
Packaging: 25kg/drum, others as required
MOQ：25kg
Shelf life: two years
Standard: AJI, CP, USP
Function and application: Food additives, nutritional supplements, pharmaceutical intermediates, pharmaceutical reagents, etc.
Packaging: 25kg/drum, others as required
MOQ：25kg
Shelf life: two years