L-cystein används huvudsakligen inom medicin, kosmetika, biokemisk forskning; Används i brödmaterial för att främja bildandet av gluten och främja jäsning, mögel och förhindra åldrande. Används i naturliga juicer för att förhindra oxidation av C-vitamin och förhindra att saften blir brun. Produkten har avgiftningseffekt, kan användas för akrylnitrilförgiftning, aromatisk acidos.
L-cystein
L-cystein CAS:52-90-4
L-cystein Chemical Properties
MF: C3H7NO2S
MW: 121,16
Smältpunkt: 220 ° C (sönderfall) (tänd)
Alfa: 8,75º (c = 12, 2n hcl)
Kokpunkt: 293,9 ± 35,0 ° C (förutsagd)
Densitet: 1,197 (uppskattning)
Brytningsindex: 8,8 ° (c = 8, 1 mol / l hcl)
Löslighet H2O: 25 mg / ml
Pka: 1,92 (vid 25â „ƒ)
PH: 4,5-5,5 (100 g / l, H2O, 20â „ƒ)
optisk aktivitet: Optisk rotation: + 8 ° till + 9 ° (c = 5, 1 N HCl, 20 ° C).
Vattenlöslighet: 280 g / L (25 ° C)
L-cystein CAS:52-90-4 Specification:
Utseende |
Vita kristaller eller kristallint pulver |
Specifik rotation [Î ±] D 20 |
+ 8,3 ° - + 9,5 ° |
Transmittans |
â ‰ ¥ 95,0% |
Klorid (Cl) |
â ‰0,04% |
Ammonium (NH4) |
â ‰ ¤0,02% |
Sulfat (SO4) |
â ‰0,03% |
Järn (Fe) |
â ‰ ¤10 ppm |
Tungmetaller (pb) |
â ‰ ¤10 ppm |
Arsenik (As2o3) |
â ‰ ¤1ppm |
Andra aminosyror |
Kromatografiskt: Ej detekterbar |
Förlust vid torkning |
â ‰ ¤0,5% |
Återstod vid antändning |
â ‰ ¤0,1% |
Analysera |
98,0 - 101,0% |
L-cystein CAS:52-90-4 Introduction:
L-cystein is a common amino acid in the body. It is one of the sulfur-containingα-amino acids. It is purple when exposed to nitroprusside (developed due to SH). It is present in many proteins and glutathione, and can form insoluble with Ag +, Hg +, Cu + and other metal ions Mercaptide. That is, R-S-M′, R-S-M″-S-R (M′, M″are each monovalent and divalent metals). Molecular formula C3H7NO2S, molecular weight 121.16. Colorless crystals. Soluble in water, ethanol, acetic acid and ammonia [1]
L-cystein has many uses in food processing. It is mainly used in baked products as an essential ingredient for dough improvers. L-cysteine is a reducing agent, it can promote the formation of gluten, reduce the time required for mixing and the energy required for medicinal purposes. Disulfide bonds weaken the structure of the protein, so the protein stretches out
L-cystein CAS:52-90-4 Function:
1.L-cystein has effective detoxification.
2.L-cystein can effectively prevent and treat radiation injury.
3.L-cystein can remove the skin melanin itself, change the nature of the skin itself.
4.L-cystein can improve the symptoms of inflammation and skin allergies.
5.L-cystein on horny skin disease is also effective hypertrophy.
6.L-cystein has a function to prevent biological aging.
7.L-cystein is a kind of natural amino acid, has many uses in food processing, it is mainly used for baking products, as a necessary component of dough improver
8.L-cystein is a kind of reductant, it can promote the formation of gluten, reduce the time needed for mixing and the energy required for medicinal.
L-cystein CAS:52-90-4 Application:
L-cystein is widely used in fields of medicine, 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. Used in the cure of liver disease, antioxidant and antidote are a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting aging. Also used in cosmetic.
1.L-cystein has an effective detoxification.
2. L-cystein can effectively prevent and treat radiation injury.
3. L-cystein can remove the skin melanin itself, change the nature of the skin itself, the skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics.
4.L-cystein can improve the symptoms of inflammation and skin allergies.
5.L-cystein on horny skin disease is also effective hypertrophy.
6. L-cystein has a function to prevent biological aging.
7. cystein är en slags naturlig aminosyra, har många användningsområden vid livsmedelsbearbetning, den används huvudsakligen för bakprodukter, som en nödvändig komponent av degförbättrare
8. cystein är ett slags reduktionsmedel, det kan främja bildandet av gluten, minska den tid som krävs för blandning och den energi som krävs för läkemedel, cystein genom att ändra proteinmolekylerna och proteinmolekylerna mellan den interna disulfidbindningen, försvaga strukturen hos protein, detta protein sträcks ut.