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Brand:aa
Product detail:
Product name : L-Cysteine
1, White crystalls or crystalline powder, slightly smell, soluble in water, hardly soluble in ethanol, not soluble in ether. With reducibility, stable in acid, easy to be oxidated in neutral and alkaline solution
Alias: Cysteine, Cys, L-cysteine base
Grade: Medicine grade, food grade, cosmetic grade
Standad: AJI92, USP
MF: C3H7NO2S
CAS: 52-90-4
EINECS: 200-158-2
FEMA: 3263
Assay: 99%
2,
Medicine grade: In pharmacy, Cysteine is used in the treatment of radioactive drugs poison, heavy metal poison, toxic hepatitis, serum sickness, and can prevent liver degeneration
Food grade: flour improver, nutritional supplement, antioxidants
3,
Specification of L-Cysteine:
Items | Specification |
Appearance | White crystal or crystalline powder |
Content% | 98.5%~101.5% |
Specific rotation( °) | +8.3~+9.5 |
Arsenic salt | ≤1ppm |
Ammonium salt(%) | 0.02 |
Heavy metal(Pb) | ≤10ppm |
PH | 4.5~5.5 |
Loss on drying(%) | ≤0.05 |
Residue on ignition(%) | ≤0.1 |
Chloride(Cl%) | ≤0.04 |
Sulfate(SO4%) | ≤0.03 |
We can also supply products as followings:
DL-methionine:
CAS: 59-51-8 | Other Names: DL-2-Amino-4-(methylmercapto)butyric acid | MF: C5H11NO2S |
EINECS: 200-462-1 | FEMA: 3301 | Molecular Weight: 149.21 |
Type: Amino acid | Grade: Feed grade | Usage: Feed additive |
L-Lysine HCl:
CAS: 657-27-2 | Other Names: L-Lysine hydrochloride | MF: C6H14N2O2.HCl |
EINECS: 211-519-9 | FEMA: 3847 | Molecular Weight: 182.65 |
Type: Amino acid | Grade: Feed grade | Usage: Feed additive |
L-Threonine:
CAS: 72-19-5 | Other Names: L-2-Amino-3-hydroxybutyric acid | MF: C4H9NO3 |
EINECS: 200-774-1 | Efficiency: Promote animals growth | Molecular Weight: 182.65 |
Type: Amino acid | Grade: Feed grade | Usage: Feed additive |
L-Tryptophan:
CAS: 73-22-3 | Other Names: L-2-Amino-3-hydroxybutyric acid | MF: C11H12N2O2 |
EINECS: 200-795-6 | Efficiency: Promote animals growth | Molecular Weight: 204.23 |
Type: Amino acid | Grade: Feed grade | Usage: Feed additive |
Glycine | L-Cysteine | L-Leucine | L-Aspartic acid |
DL-Alanine | L-Cysteine anhy | L-Proline | L-Cystine |
L-Alanine | L-Cysteine mono | L-Methionine | L-Tryptophan |
DL-Methionine | L-Threonine | L-Tyrosine | L-Arginine |
L-Lysine HCL | Disodium succinate | L-Glutamic acid | L-Valine |
L-Isoleucine | L-Ornithine mono |
