Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Reputable factory supply L-Cysteine 52-90-4 in bulk at low price We supply high quality L-Cysteine (CAS 52-90-4), in stock, factory directly supply to clients, lower prices, more competitiveness.
L-Cysteine is white crystalline powder, while it's Molecular Formula is C3H7NO2S. L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours. It is used in foods to prevent oxygen from destroying vitamin c and is used in doughs to reduce mixing time.
The CAS number of L-Cysteine is 52-90-4.
More information of L-Cysteine 52-90-4 are:
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Synonyms |
L-Cysteine Free Base;2-Amino-3-mercapto-, (R)-;L-Cysteine (JAN);L-Cysteine Base/Hcl (mono/anhyd);(2R)-2-amino-3-mercaptopropanoic acid;Valine,3-mercapto-;alpha-Amino-beta-mercaptopropionic acid, L-;alpha-Amino-beta-thiolpropionic acid, L-;L-2-Amino-3-mercaptopropanoic acid;(2R)-2-amino-3-sulfanyl-propanoic acid;Half-cystine;L-2-Amino-3-mercaptopropionic acid;L-Cysteine Base;(+)-2-Amino-3-mercaptopropionic acid;H-Cys-OH; |
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CAS Number |
52-90-4 |
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Molecular Formula |
C3H7NO2S |
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Molecular Weight |
121.16 |
|
Density |
1.334 g/cm3 |
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Melting Point |
220 °C |
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Boiling Point |
293.9 °C at 760 mmHg |
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Flash Point |
131.5°C |
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HS CODE |
29309012 |
|
PSA |
102.12000 |
|
LogP |
0.02840 |
|
Pka |
1.92(at 25℃) |
Cysteine (abbreviated as Cys or C) is an α-amino acid with the chemical formula HO2CCH(NH2)CH2SH. It is a semi - essential amino acid, which means that it can be biosynthesized in humans. The thiol side chain in cysteine often participates in enzymatic reactions, serving as a nucleophile. The thiol is susceptible to oxidization to give the disulfide derivative cystine, which serves an important structural role in many proteins. When used as a food additive, it has the E number E920.
InChI:InChI=1/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
Articles related to L-Cysteine:
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Article |
Source |
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A novel and environmentally friendly colorimetric method for detection of cystine in human urine using unmodified gold nanoparticles |
Lu, Li-Qiang,Gao, Qian,Song, Chi,Tian, Xi-Ke,Xu, An-Wu , p. 27297 - 27300 (2014) |
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Biogenesis of Hydrogen Sulfide and Thioethers by Cystathionine Beta-Synthase |
Majtan, Tomas,Krijt, Jakub,Sokolová, Jitka,K?í?ková, Michaela,Ralat, Maria A.,Kent, Jana,Gregory, Jesse F.,Ko?ich, Viktor,Kraus, Jan P. , p. 311 - 323 (2018) |
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