L-Cystine
Specification:
|
L-Cystine |
AJI92 |
USP28 |
In-house |
|
Appearance |
White crystalline or crystalline powder |
White crystalline or crystalline powder |
White crystalline or crystalline powder |
|
Specific rotation |
-215º~-225º |
-215º~-225º |
-215º~-225º |
|
State of solution |
≥98.0% |
--- |
≥90.0% |
|
Chloride(as Cl) |
≤0.02% |
≤0.05% |
≤0.10% |
|
Sulfate(SO4) |
≤0.02% |
≤0.04% |
≤ 0.02% |
|
铵盐 |
≤0.02% |
--- |
--- |
|
Iron(Fe) |
≤10ppm |
≤30ppm |
≤ 20ppm |
|
Heavy metal (Pb) |
≤10ppm |
≤10ppm |
≤ 10ppm |
|
Arsenic(AS2O3) |
≤1.0ppm |
≤1.5ppm |
≤ 1.0ppm |
|
Loss on drying |
≤0.20% |
≤0.20% |
≤ 0.20% |
|
Residue on ignition |
≤0.10% |
≤0.40% |
≤ 0.10% |
|
pH |
5.0~6.5 |
5.0~6.5 |
5.0~6.5 |
|
Assay |
98.5%~101.5% |
98.5~101.5% |
98.5%~101.5% |
|
Other amino acids |
--- |
Conforms |
Conforms |
Standard: AJI, USP, in-house
Function and application: It is mainly used in biochemical research, medicine for various alopecia, food seasoning, etc
Packaging: 25kg/bag(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