L-Cysteine Cysteine L-Cysteine Amino Acid Food Additives L Cysteine Food Grade CAS 52-90-4

• Customization: Available
• Type: Cysteine
• Chemical Character: Acidity
• Model NO.: Dongfang
• Appearance: Powder
• Grade: Food Grade
• CAS No.: 52-90-4
• Einecs No.: 200-158-2
• Mf: C3h7no2s
• Other Names: L-Cysteine
• Shelf Life: 2 Years
• Storage: Cool Dry Place
• MOQ: 1 Kg
• Sample: Free
• Delivery: Within 7~15 Working Days
• Transport Package: 25 Kg/Bag
• Specification: 99.9%
• Trademark: Dongfang
• Origin: China
• Production Capacity: 5000 Kilogram/Kilograms Per Week

Product Description

    Used as boiler water and industrial water softening agent, industrial circulating cooling water treatment agent; Also used as corrosion inhibitor, flotation agent, dispersant, high temperature bonding agent, dyeing agent, metal surface treatment, rust prevention agent, detergent agent, cement hardening accelerator.
    In the petroleum industry, it is used to prevent the rust of drilling pipes and to control the viscosity of mud during oil drilling. The quality improver has the effect of improving the complexation of metal ions, pH value, increasing the ionic strength, etc., thereby improving the binding force and water retention.

 

 

Testing Item	Standard	Result
Appearance	White crystals or crystalline powder	conforms
Specific rotation 20	+ 8.3°~ +9.5°	+8.72°
State of solution (Transmittance)	≥95.0%	98.5%
Loss on drying	≤0.50%	0.18%
Residue on ignition	≤0.10%	0.07%
Heavy metals(Pb)	≤10PPM	<10PPM
Chloride (Cl)	600---1000ppm	800ppm
Arseni c (As2O3)	≤1PPM	conforms
Iron (Fe)	≤10PPM	<10PPM
Ammonium (NH4)	≤0.02%	<0.02%
Sulfate (SO4^2-)	≤0.030%	≤0.030%
Other amino acids	Chromatographically	Qualified
PH value	4.5 ~ 5.5	5.0
Assay	98.0%~101.0%	99.4%

    L-Cysteine is widely used in fields of food processing, biological study, materials of chemical industry and so on.It's used as raw materials for manufacturing N-Acetyl-L-Cysteine , S-Carboxymethyl-L-Cysteine and L-Cysteine base etc.
 

    It is an antioxidant and a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting ageing.Also used in cosmetic.

Sample Order: DHL, UPS, FEDEX, EMS, TNT.
(door to door)

Large Order: By air or by sea

If you have your own forwarder, pls tell us the detailed information.

In general, 1kg per bag or 25kg per drum.

You You can tailor it to your needs.

Note:
1.Store in dry, well-ventilated area.
2.Keep container closed.
3.Keep away from heat, sparks and flames.
4.Store away from incompatibles.
5.Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping and /or stacking.
 

    Tianjin Dongfang Import & Export Co., LTD. is located in Tianjin China. We mainly Medical Intermediate, Cosmetics raw materials, Food Additive. Products are exported to North America, Europe, Australia, Middle East and other regions. At the same time, we can also provide customers with product customization services.

    Our factory covers an area of approximately 3,800 square meters. The first-class R&D team, professional production team, and strict quality inspection department make us a leader in the domestic chemical industry.
 
    Our factory has been developing vigorously, and the production capacity has been rising constantly, which can meet the demands of customers more and faster. Even for large orders, we can complete production in 2-3 weeks. We have professional sales staff, experienced logistics team and patient and meticulous after-sales service to help you solve problems in the order process.
 
    Choosing us, you will have a reliable partner, high-quality products, fast and safe transportation, and worry-free after-sales experience. Sincerely hope that we can establish long-term cooperative relations with our customers and achieve a win-win situation.