Top Quality L-Cysteine Plant Source

• CAS No.: 52-90-4
• EINECS: 200-158-2
• Packaging Material: Paper
• Storage Method: Normal
• Shelf Life: >12 Months
• Nutrient Composition: Amino Acid
• Model NO.: ZXCHEM
• Resource: Natural
• The content of active substances: ＞90%
• Appearance: White Crystaline Powder
• Assay: 98%Min
• pH: 4.5-5.5
• Loss on Drying: 0.5%Max
• Transport Package: Drum/Bag
• Specification: 25/BAG/DRUM
• Trademark: ZXCHEM
• Origin: China
• Production Capacity: 50000mt/Year

Product Description

Product Specifications

 

Specifications:  

Analysis		Specification
Appearance		White crystals or crystalline powder
Identification(IR)		Concordant with the reference spectrum
Specific rotation		+8.3~+9.5^o
Solubility		Very soluble in water
State of solution		≥95.0%
Chloride(Cl)		≤0.040%
Ammonium(NH4)		≤0.020%
Sulfate(SO4)		≤0.030%
Iron(Fe)		≤10ppm
Heavy metals(Pb)		≤10ppm
Arsenic(As2O3)		≤1ppm
Loss on drying	≤0.50%
Residue on ignition (Sulfated)	≤0.20%
Assay	98.0~101.0%
PH		4.5~5.5

Application:

L-cysteine, also known as cysteine, is a non-essential amino acid of the human body. Amino acids are protein components and protein is the material basis of life. Ranging from human to microorganism, all consist of protein. Protein is composed of peptides, and peptide chain is composed of amino acids. Different proteins are composed of peptide chains in different order and length. Genes related to heredity are in fact amino acid chains in different orders.
L-cysteine is closely related to cysteine, and two molecules of cysteine can form a cysteine. Cysteine is relatively unstable and easy to become cysteine. Cystine can also re-generate cysteine. These two both are sulfur-containing amino acids, which affect the formation of skin and can be used for detoxification.
L-cysteine is present in keratin, which is the major protein that makes up nails, toenails, skin and hair. L-cysteine can help the production of collagen, and can maintain the skin's elasticity and texture. It is also related to the protein of digestive enzymes, and cysteine can supply -SH group to many important enzymes, such as succinate dehydrogenase and lactate dehydrogenase.
L-cysteine is mainly used in the field of cosmetics, medicine and food. In cosmetics, it can be used for the preparation of perm essence, sunscreen, hair-restoring perfume and other nourishing hair essence. In the field of medicine, it is mainly used for the preparation of methyl cysteine, ethyl cysteine, acetyl cysteine, cysteine methyl ester, cysteine ethyl ester as well as comprehensive amino acid preparations and other drugs. Cysteine can be used as protective agent for radiation damage. In food, L-cysteine can be used as bread fermentation aid (ripening agent), stabilizer of milk powder and fruit juice antioxidants and nutrition of pet food and so on.

Function:

L-cysteine is an important precursor for antioxidants such as glutathione - a product metabolized in the liver. Glutathione is essential for the breakdown of toxins in the body, such as alcohol. L-cysteine is also the precursor for other important antioxidants that help ward off cancer by decreasing the incidence of cell mutation.
Cancer is caused by the replication of genetic mistakes (mutations) that go unnoticed by the cell's recognition system. In healthy cells, mutations are caught and denatured before replication continues.
If mutations are not caught, then the on/off mechanisms that monitor cell formation may be disrupted allowing uncontrolled proliferation of cells into tumors. A healthy cell rich in amino acids such as L-cysteine, has a better chance of sensing and discarding such mutations.
L-cysteine benefits can also include improved heart and circulatory system health. Inflammation plays a key role in heart health. The inflammation response causes a cascade of events to bring fluids, proteins and cells to damaged tissues.

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FAQ:

Q: What is the Minimum Order Quantity (MOQ)?
A: The MOQ is 1000KG.

Q: How can I obtain a sample?
A: We offer samples up to 500g for free. To receive one, please provide your DHL account for freight collection, or cover the courier costs upfront. These costs will be refunded upon placement of a bulk order.

Q: What is the lead time for orders?
A: Typically, orders are ready to be shipped approximately two weeks after receipt of the prepayment or Letter of Credit (L/C). However, this timeframe may vary by up to one week earlier or later, depending on production schedules.

Q: What are the bulk packaging options?
A: For bulk orders, packaging varies depending on the product form.we typically use 25KG Kraft paper bags, 25KG cardboard drums, or 1MT polypropylene bags, accommodating different handling and shipping requirements."

Q: What payment methods are accepted?
A: We accept various common international trade payment methods, including Letters of Credit (L/C), Documents against Payment (D/P), and Telegraphic Transfer (T/T). Please note that we do not accept credit card payments. Payment terms can be negotiated to provide flexibility and convenience for our clients, ensuring a smooth transaction process.

Q: Can the packaging be customized?
A: Yes, packaging can be customized to meet the specific needs of our clients. This includes options for different container sizes, materials, and labeling services. Please discuss your requirements with us in advance to ensure we can accommodate your needs.

Q: Is there a discount for large orders?
A: We offer volume discounts for large orders. The discount rate depends on the order quantity and product specifications. Please contact our sales team with your order details to discuss potential discounts and pricing.

Q: What quality certifications do you have?
A: Our products and manufacturing processes are certified by international standards such as ISO 9001 for quality management systems and ISO 14001 for environmental management systems. Specific product certifications and compliance documents are available upon request.

Q: How can I track my order?
A: Once your order is shipped, we will provide you with a tracking number and shipping details. You can track your order through the carrier's website or contact our customer service team for updates on your shipment's status.

Q: What shipping methods do you offer, and what are the terms of transport?
A: We offer versatile shipping options to accommodate the diverse needs of our clients, including sea freight, air freight, and land transportation. For sea freight, we support all major ports in China, ensuring comprehensive coverage for international shipping. Our land transportation options include both rail and road freight, providing flexibility for domestic and cross-border deliveries. Regarding transport terms, we are equipped to handle a variety of Incoterms, including FOB (Free On Board), CIF (Cost, Insurance, and Freight), CFR (Cost and Freight), DDP (Delivered Duty Paid), FCA (Free Carrier), and EXW (Ex Works), allowing us to tailor shipping and logistics services to meet specific requirements.