Wholesale CAS 56-89-3 Food Grade Powder Cystinel Amino Acid L-Cystine

• Powder: Yes
• Customized: Customized
• Certification: GMP, HSE, ISO 9001, USP, BP
• Suitable for: Adult
• State: Powder
• Purity: >99%
• Model NO.: HB-Cystinel Amino Acid L-Cystine
• Test: HPLC
• Packing: Rum, Aluminum Foil Bag
• MOQ: 1kg
• Shelf Life: 2 Years
• Storage: Cool Dry Place
• Transport Package: Carton Box
• Specification: 99%
• Trademark: Haibo
• Origin: Shaanxi, China
• HS Code: 2930901000
• Production Capacity: 5000000/Year

Product Description

L-cystine was discovered in 1810 by Wollaston from bladder stones. In 1832, Berzelius named it cystine.

L-cystine,is a covalently linked dimeric nonessential amino acid formed through the oxidation of cysteine. It is contained in many foods including eggs, meat, dairy products, and whole grains as well as in skin and hairs. L-cystine and L-methionine are the amino-acids required for wound healing and formation of epithelial tissue.

It is able to stimulate the hematopoietic system and promote the formation of white and red blood cells. It can also be used as a component of parental and enteral nutrition. It can also be used for the treatment of dermatitis and protection of liver function. L-cystine is manufactured through the enzymatic conversion from DL-amino thiazoline carboxylic acid. 

Items	Specifications	Results
Appearance	white powder	Confirm
Odor& Taste	Characteristic	Confirm
Loss on drying	≤8.0%	2.8%
Assay(HPLC)	98.0% min	99.2%
Ash	≤1.0%	0.35%
Heavy Metal	≤10 ppm	Confirm
As	≤1.0ppm	Confirm
Pb	≤1.0ppm	Confirm
Cd	≤1.0ppm	Confirm
Hg	≤0.1ppm	Confirm
Total plate count	≤1000 cfu/g	Confirms
Yeast&Mold	≤100 cfu/g	Confirms
E.Coli	Negative	Negative
Salmonella	Negative	Negative
Staphylococcus aureus	Negative	Negative