| Customization: | Available |
|---|---|
| Type: | L-Cystine |
| Chemical Character: | Alkalinity |
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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.
L-cysteine is mainly used in , cosmetics, biochemical research and so on. It is used in bread materials to promote the formation of gluten, promote fermentation, mold production and prevent aging. It is used in natural juice to prevent oxidation of vitamin C and browning of juice. The product has detoxification effect and can be used for poisoning and aromatic acidosis. It also has the function of preventing radiation damage to human body, and is also a medicine for treating bronchitis, especially as a phlegm-resolving drug (mostly in the form of acetyl L-cysteine methyl esterate). Cosmetics are mainly used in cosmetic water, perm, sunproof skin cream and so on.
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Items
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Specifications
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Appearance
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White crystals or crystalline powder.
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Specific rotation [a]o20
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-215°~-225°
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State of solution
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≥98.0%
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Chloride
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≤0.020%
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Ammonium
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≤0.02%
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Sulfate
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≤0.020%
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Iron
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≤20ppm
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Heavy metals
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≤10ppm
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Other amino acids
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≤0.2%
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Loss on drying
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≤0.20%
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Residue on ignition
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≤0.10%
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Assay
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98.5~101.0%
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pH
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5.0~6.5
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We usually prepare the goods within 7~10 days.
| Product Name | Product Name | Product Name |
| L-Methionine 63-68-3 | D-Methionine 348-67-4 | DL-Methionine 59-51-8 |
| L-Threonine 72-19-5 | D-Threonine 632-20-2 | DL-Threonine 80-68-2 |
| L-Tryptophan 73-22-3 | D-Tryptophan 153-94-6 | DL-Tryptophan 54-12-6 |
| L-Isoleucine 73-32- 5 | D-lsoleucine 319- 78-8 | DL-lsoleucine 443-79-8 |
| L-Valine 72-18-4 | D-Valine 640-68-6 | DL-Valine 516-06-3 |
| L-Lysine 56-87-1 | D-Lysine 923-27-3 | DL-Lysine 70-54-2 |
| L-Lysine Hcl 657-27-2 | D-Lysine Hcl 7274 -88-6 | DL-Lysine Hcl 70-53-1 |
| L-Alanine 56-41-7 | D-Alanine 338-69-2 | DL-Alanine 107-95-9 |
| L-Aspartic Acid 56- 84-8 | D-Aspartic Acid 1783- -96-6 | DL-Aspartic Acid 617-45-8 |
| L-Malic acid 97-67-6 | D-Malic Acid 636-61-3 | DL-Malic Acid 6915-15-7 |
| L-Phenylalanine 63-91-2 | D-Phenylalanine 673-06-3 | DL-Phenylalanine150-30-1 |
| L-Serine 56-45-1 | D-Serine 312 -84-5 | DL-Serine 302-84-1 |
| L-Arginine 74-79-3 | D-Arginine157-06-2 | L-Arginine Hcl 1119-34-2 |
| L-Proline 147-85-3 | D Proline 344- 25-2 | DL-Proline 609-36-9 |
| L-Tyrosine 60-18-4 | D-Tyrosine 556-02-5 | DL-Tyrosine 556-03-6 |
| L-Leucine 61-90-5 | D-Leucine 328-38-1 | DL-Leucine 328-39-2 |
| L-Cysteine 52-90-4 | D-Cysteine 921-01-7 | DL-Cysteine 3374- 22-9 |
| L-Citrulline 372-75-8 | N-acetyl-L-cysteine 616-91-1 | DL-Citrulline 627-77-0 |
| L-Glutamic Acid 56- -86-0 | N-acetyl-L-leucine 1188-21-2 | DL-Glutamic Acid 617-65-2 |
| L-Norvaline 6600 -40-4 | N-acetyl-L-tyrosine 5537-55-3 | DL-Norvaline 760-78-1 |
| L-Histidine 71-00-1 | Acetyl L-Carnitine 5080-50-2 | D-Citrulline 13594-51-9 |
| L-Glutamine 56- 85-9 | N-acetyl-L-alanine 97-69-8 | D-Glutamic Acid 138-16-9 |
| L-Glycine 56- -40-6 | N-acetyl-L-carnosine 56353-15-2 | D-Norvaline 2013-12-9 |
| L-Pyroglutamic acid 56-86-0 | Citrulline Malate 54940-97-5 | L-Carnitine 541-15-1 |
| L-Asparagine 70-47-3 | Ornithine Aspartate 3230-94-2 | L-Carnosine 305 -84-0 |
| L-Theanine 3081-61-6 | Arginine Aspartate7675-83-4 | L- Hydroxyproline 618-27-9 |
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