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L Cysteine Powder

  • Chemical Name:L-Cystine
  • CAS No.:56-89-3
  • MF: C6H12N2O4S2
  • MW:240.3
  • Purity:>98% or As customer requested
  • Color:White
  • Product Categories:Biochemistry;Nutritional Supplements;L-Amino Acids;Amino Acids; APIs; Biochemical Engineering
  • Test method: HPLC


What is L Cysteine Powder? 

L cysteine powder is a proteingenic amino corrosive, which contributes toward a huge number of capabilities in organic frameworks. Cysteine powder is named a semiessential amino corrosive and can be orchestrated in the liver from methionine, which is a sulfur-containing amino corrosive. 

This makes the wealth of methionine a basic element to human wellbeing. As a structure block, l-cysteine bulk contributes 2% of the all out underlying proteins in the body as connective tissue, cell films, and the myelin sheaths around neurons, structures, which safeguard neurons from oxidative pressure and brutal ecological circumstances.

Basic information 

Product Name: L-Cystine
Synonyms: cystine; L-Cystin; Cystine acid; L-Dicysteine; Dicysteine; Gelucystine; L-Cystine 99%
CAS: 56-89-3
MF: C6H12N2O4S2
MW: 240.3
EINECS: 200-296-3
Product Categories: Biochemistry;Nutritional Supplements;L-Amino Acids;Amino Acids; APIs; Biochemical Engineering
Chemical Structure


Chemical Properties


Melting point  >240 °C (dec.) (lit.)
alpha  -224 º(c=2 in 1M HCl)
Boiling point  468.2±45.0 °C(Predicted)
density  1.68
refractive index  -222.5 ° (C=1, 1mol/L HCl)
storage temp.  2-8°C
solubility  1 M HCl: 100 mg/mL
form  Powder/Solid
pka 1.0, 2.1, 8.02, 8.71(at 25℃)
color  White
optical activity [α]20/D 219±5°, c = 1% in 1 M HCl
Water Solubility  0.112 g/L (25 ºC)
Merck  14,2782
BRN  1728094
Stability: Stable. Incompatible with strong oxidizing agents.
L Cysteine Powder Usage And Synthesis

1. Has Antioxidant Properties

L cysteine powder works as a scavenger of free radicals that cause cellular damage through oxidative stress, and it improves antioxidant capacity through the preservation of glutathione. This is the most well-known L-cysteine benefit because it can slow down the aging process and help prevent or treat a number of serious health conditions.

2. Promotes Detoxification

L-cysteine bulk can be used to help prevent side effects caused by drug reactions and toxic chemicals.

3. Increases Male Fertility

Because L-cysteine is supplemented to alleviate glutathione depletion during oxidative stress, it’s effective as a treatment of impotence in men who may have poor semen quality, DNA damage and oxidative stress.

4. Balances Blood Sugar Levels

L cysteine powder is beneficial in helping support the body’s natural ability to manage and regulate normal blood sugar levels. A 2009 animal study shows that L-cysteine supplementation may lower glycemia and markers of vascular inflammation in patients with diabetes.

5. Supports Digestive Health

cysteine powder improves the body’s digestive capacity because of its ability to slow the aging process. As people age, digestive issues like low stomach acid and gastroenteritis become more prominent. This can be due to the presence of free radicals in the body.

Technical Support & Resources

Information provided in the product description is from published literature. Due to the nature of scientific experimentation, your results (e.g., selectivity and effective concentrations) or specific application for this product may differ. If you have questions about how this product fits your application, please contact our technical support staff.

MSDS: MSDS available.

COA: COA can be available if you send us inquiry.

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