High Purity Food Grade L-Cysteine Raw Material 99% CAS 52-90-4 for Dietary Supplement

• Customization: Available
• CAS No.: 52-90-4
• Formula: C3h7no2s
• EINECS: 200-158-2
• Packaging Material: Aluminum Foil Bag
• Storage Method: Normal
• Shelf Life: 2 Years
• Nutrient Composition: Amino Acid
• Resource: Biological Fermentation
• The content of active substances: 99%
• Transport Package: Paper Drum
• Specification: 25kg/paper drum
• Trademark: SQbiotech
• Origin: China
• HS Code: 2924199090
• Production Capacity: 10000kg/Month

Product Description

L-Cysteine is a versatile amino acid with significant functions and a wide range of applications, which are described as follows:

 

Functions

 

• Protein Structure and Function: L-Cysteine contains a thiol (-SH) group that can form disulfide bonds with other cysteine residues. These bonds are crucial for stabilizing the tertiary and quaternary structures of proteins, thereby determining their proper folding and functional conformations. Many enzymes, hormones, and antibodies rely on these disulfide bonds for their biological activities.
• Antioxidant Activity: It is a key precursor for the synthesis of glutathione, a potent intracellular antioxidant. Glutathione helps protect cells from oxidative damage by neutralizing free radicals and reactive oxygen species. L-Cysteine itself can also directly scavenge some free radicals, thus playing an important role in maintaining the redox balance within cells and preventing oxidative stress-related diseases.
• Detoxification Process: L-Cysteine is involved in the body's detoxification mechanisms. It can conjugate with various toxic substances, such as heavy metals (e.g., mercury, lead) and some xenobiotics, to form more water-soluble complexes that can be excreted from the body, thereby reducing the toxicity of these substances.
• Amino Acid Metabolism and Biosynthesis: It participates in various metabolic pathways related to amino acids. For example, it can be converted into other sulfur-containing amino acids or used in the synthesis of other important biomolecules, such as coenzymes and neurotransmitters.
• Enhancement of Immune Function: L-Cysteine is involved in the production and function of immune cells. It helps in the synthesis of proteins and enzymes required for the immune response, thereby contributing to the body's ability to defend against infections and diseases.

 

Applications

 

• Nutritional Supplements: L-Cysteine is commonly used in nutritional supplements. It is often recommended for individuals with increased oxidative stress, such as smokers or those exposed to environmental pollutants, as well as for athletes to support muscle recovery and antioxidant defense. It can also be beneficial for people with certain dietary restrictions or deficiencies.
• Pharmaceutical Industry: In pharmaceuticals, L-Cysteine is used in the treatment of various conditions. It is used in the treatment of acetaminophen overdose due to its ability to replenish glutathione and prevent liver damage. It is also used in some medications for respiratory disorders, as it can help break down mucus by reducing disulfide bonds in mucus proteins, thereby improving airway clearance. Additionally, it is used in the formulation of drugs for treating skin diseases and certain genetic disorders related to amino acid metabolism.
• Cosmetics and Personal Care Products: Due to its role in maintaining skin and hair health, L-Cysteine is widely used in the cosmetics and personal care industry. In skin care products, it helps to reduce the appearance of wrinkles and fine lines by promoting collagen synthesis and acting as an antioxidant. In hair care products, it is used for hair perming and straightening processes, as it can break and reform disulfide bonds in hair proteins. It is also added to some shampoos and conditioners to improve hair strength and manageability.
• Food Industry: L-Cysteine has several applications in the food industry. It is used as a dough conditioner in baking to improve the elasticity and extensibility of dough, resulting in better bread quality and volume. It can also be used as an antioxidant to prevent food spoilage and discoloration, especially in processed meats and fruits. In addition, it is sometimes used as a flavor enhancer, as it can react with other food components to produce desirable flavors.
• Biotechnology and Research: In biotechnology, L-Cysteine is used in cell culture media to support the growth and proliferation of cells. It is also used in protein engineering and recombinant DNA technology to modify the structure and function of proteins by introducing cysteine residues for specific purposes, such as creating disulfide bond-mediated protein assemblies.

 

 

 

 

 

 

 

 

 

Factory Photoes:


Testing lab


Ware house

Packing way

FAQ

How to Confirm Product Quality Before Placing Orders?
 

For stock items, we will offer free samples in 20g to 50g. You only need to cover the express shipping cost to

get it for quality checking before placing your official order.If you're interested in OEM products, we'll

manufacture them according to your specifications and send them to you for confirmation.
 

Can I Place a Small Order?
 

Absolutely! Our minimum order quantity is 1kg, which will be carefully packed in a small, sealed aluminum foil

bag. We will ship you by express with the shipping cost at your account.
 

What Will Be The Payment Way?
 

Basically We prefer T/T. Well for very small orders, we can do by PayPal.
 

What's the Lead Time?
 

For normal stock items, we can deliver within 3 days. For big Qty orders or OEM orders, the lead time is typically

7-10 days.
 

What About After-Sales Service?
 

Our company name, Servqual, is derived from the words "Service" and "Quality," which underscores our

commitment to both excellent service and high-quality products. We believe that only by providing superior

service and maintaining top-notch quality can we build a lasting business. In our collaboration, you will deeply

experience this commitment.