L-Cystine
L-Cystine is a covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. Cystine is a chemical substance which naturally occurs as a deposit in the urine, and can form a calculus (hard mineral formation) when deposited in the kidney. The compound produced when two cysteine molecules linked by a disulfide (S-S) bond. Cystine is required for proper vitamin B6 utilization and is also helpful in the healing of burns and wounds, breaking down mucus deposits in illnesses such as bronchitis as well as cystic fibrosis. Cysteine also assists in the supply of insulin to the pancreas, which is needed for the assimilation of sugars and starches. It increases the level of glutathione in the lungs, liver, kidneys and bone marrow, and this may have an anti-aging effect on the body by reducing age-spots etc.
Synonyms: L-Cystine 99%; Cystine acid; 3,3'-Dithiobis(2-aminopropionic acid)
Molecular Formula: C6H12N2O4S2
Molecular Weight: 240.3
CAS No.: 56-89-3
Description:
White crystals or crystalline powder,tasteless.
Specifications:
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Item\Specification |
AJI92 |
USP24 |
FCC4 |
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Assay |
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Specific rotation[a] D 20º |
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Transmittance (T 430 ) |
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Chloride(CL) |
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Ammonium(NH 4 ) |
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Sulfate(SO 4 ) |
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Iron(Fe) |
20ppm max. |
20ppm max. |
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Heavy metals |
10ppm max. |
15ppm max. |
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Arsenic |
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Other amino acids |
10mg/kg max. |
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Loss on drying |
Conforms |
Not detected by TLC |
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Residue on ignition |
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Organic volatile impurities |
Package:
Fibre drum double polyethylene bags inside (20kgs) with 30cm×51cm..
Storage:
Cool,dry,dark in closed containers,recommended limit 1 years.
Continue reading here: Ascorbic Acid Sodium Ascorbate, Vitamin C
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