Place of Origin: | China |
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Brand Name: | Senwayer Brand |
Certification: | ISO, 9001, USP |
Model Number: | 52-90-4 |
Minimum Order Quantity: | 10grams |
Price: | Discount is possible if your order is big enough |
Packaging Details: | 10g, 20g, 50g , 100g, 500g. 1kg, 10kg |
Delivery Time: | within 2 working days |
Payment Terms: | T/T in advance, Money Gram, Western Union, Bank Transfer. |
Supply Ability: | 1000kg/month |
CAS: | 52-90-4 | Alias: | L-Cysteine, (R)-2-Amino-3-mercaptopropanoic Acid |
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Apparence: | Almost White Crystalline Powder | Purity: | 99% |
Packing: | As Your Requirement | Stock: | Enough Stock |
High Light: | anti aging supplements,anti androgen drugs |
Nutritional Supplements L-Cysteine CAS 52-90-4 Skin Whitening and Anti Aging Powder
Quick detail
Product Name: | L-Cysteine |
Synonyms: | (R)-2-Amino-3-mercaptopropanoic acid;3-mercapto-l-alanin;alpha-amino-beta-mercaptopropionicacid;alpha-Amino-beta-thiolpropionic acid;alpha-amino-beta-thiolpropionicacid;Cystein;half-cysteine;L-Alanine, 3-mercapto- |
CAS: | 52-90-4 |
MF: | C3H7NO2S |
MW: | 121.16 |
EINECS: | 200-158-2 |
Product Categories: | API intermediates;Cysteine [Cys, C];Amino Acids;Amino Acids and Derivatives;alpha-Amino Acids;Antioxidant;Biochemistry;Nutritional Supplements;L-Amino Acids;Amino Acids;amino |
Melting point | 220 °C (dec.)(lit.) |
alpha | 8.75 º (c=12, 2N HCl) |
refractive index | 8.8 ° (C=8, 1mol/L HCl) |
storage temp. | Store at RT. |
solubility | H2O: 25 mg/mL |
Water Solubility | 280 g/L (25 ºC) |
Stability: | Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases. |
L-Cysteine Description
L-Cysteine Usage
((( Health Benefits )))
Hair Growth
L-Cysteine COA
Appearance | White Crystals or Crystalline Powder |
Specification Rotation | +8.3º~+9.5º |
State of Solution | ≥95.0% |
Chloride(Cl) | ≤ 0.04% |
Ammonium | ≤ 0.02% |
Sulfate(SO4) | ≤ 0.030% |
Iron(Fe) | ≤10ppm |
Arsenic(As2o3) | ≤1ppm |
Other Amino Acids | Conforms |
Heavy Mental(Pb) | ≤10ppm |
Loss on Drying | ≤ 0.50% |
Residue on Ignition | ≤ 0.10% |
Assay | 98.0%~101.0% |
PH | 4.5~5.5 |