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常用试剂> 生化试剂> 氨基酸
L-半胱氨酸(99.0-101.0%, BioPremium)
产品编号: ST1489-50g
产品包装:50g
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价格: ¥ 28.00
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产品编号 产品名称 产品包装 产品价格
ST1489-50g L-半胱氨酸(99.0-101.0%, BioPremium) 50g 28.00元
ST1489-250g L-半胱氨酸(99.0-101.0%, BioPremium) 250g 90.00元
ST1489-1kg L-半胱氨酸(99.0-101.0%, BioPremium) 1kg 321.00元
ST1489-5kg L-半胱氨酸(99.0-101.0%, BioPremium) 5kg 1450.00元
CAS Number Chemical Formula Molecular Weight Purity Grade
52-90-4 C3H7NO2S 121.16 99.0-101.0% BioPremium

基本信息(General Information):

Name (Chinese) L-半胱氨酸
Name (English) L-Cysteine
Specifications BioPremium, meets FCC, USP, EP, JP testing specifications, suitable for cell culture, ≥99%, from non-animal source
Chemical Formula C3H7NO2S
Synonym (Chinese) L-半胱氨酸; L-2-氨基-3-巯基丙酸; (R)-2-氨基-3-巯基丙酸;
Synonym (English) H-CYS-OH; H-Cys-OH; CYSH;
FEMA 3263; Cystein; L-Cysteine; E 920;
L-Cys; CYSTEINE; (R)-2-Amino-3-
mercaptopropionic acid; CYS; Thioserine
Beilstein Registry No 1721408
EINECS Number 200-158-2
MDL Number MFCD00064306
PubChem Number 24892959
eCl@ss 32160406
NACRES NA.75

产品描述(Description):

General description L-Cysteine is one of the sulfur containing proteinogenic amino acid incorporated into proteins as directed by the genetic code.The thiol-side chain participates in a variety of oxidation/reduction reactions within the cell. The side chain participates in the formation of β bonds that modulate the secondary and ternary structure of proteins. L-Cysteine is an essential precursor for inorganic sulfates, coenzyme A. Cysteine is an essential and limiting for the formation of glutathione, an important antioxidant, within the cell. Mammalian liver can synthesize L-cysteine and is a semi-essential amino acid. L-cysteine prevents oxidation of nerve cells, aids in maintaining the stability and rigidity of connective tissues. L-cysteine speeds up the healing process of the body and reduces inflammatory reactions. L-cysteine protects testis partially against acrylamide induced toxicity. L-cysteine can prevent DNA damage during cryopreservation and preserves semen quality.
L-Cysteine is a proteinogenic amino acid incorporated into proteins as directed by the genetic code. The thiol-side chain participates in a variety of oxidation/reduction reactions within the cell. The side chain participates in the formation of β bonds that modulate the secondary and ternary structure of proteins. Cysteine is essential and limiting for the formation of glutathione, an important antioxidant, within the cell.
Biochem/physiol Actions NMDA glutamatergic receptor agonist.
Application L-Cysteine has been used:
as a media supplement in Trypticase-Yeast Extract-Iron-Serum (TYI-S-33) media for the culture of Giardia lamblia,to make enzyme solution in Dulbecco′s modified Eagles medium (DMEM) to establish hippocampus culture to test its protective effect on acrylamide induced toxicity in testis in the preparation of tris acetic acid extender solution for cryopreservation of semen as an additive to make papain digestion solution
Other Notes -

性质(Properties):

assay 99.0-101.0%
mp 240℃ (dec.) (lit.)
bp 293.9℃ at 760 mmHg
density 1.66 g/cm³ at 45℃
solubility H₂O: 25 g/L at 25℃ - soluble
PH 4.5-5.5 (2.5% in H₂O)
grade BioPremium
color 白色
form powder
quality meets USP, EP and JP Testing Specifications
suitability suitable for cell culture
biological source from non-animal source
application(S) -

安全信息(Safety Information):

Pictogram(s) No symbol.
Signal Word No signal word
Hazard Statements none
Precautionary statement(s) Prevention none
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
Other hazards none
RIDADR NONH for all modes of transport
WGK 1
RTECS HA1600000
Flash Point (F) -
Flash Point (C) -
SMILES string N[C@@H](CS)C(O)=O
InChI 1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
InChI key XUJNEKJLAYXESH-REOHCLBHSA-N
Response none
Storage Class Code 11 - Combustible Solids
Disposal none
TSCA Yes
包装清单:
产品编号 产品名称 包装
ST1489-50g L-半胱氨酸(99.0-101.0%, BioPremium) 50g
ST1489-250g L-半胱氨酸(99.0-101.0%, BioPremium) 250g
ST1489-1kg L-半胱氨酸(99.0-101.0%, BioPremium) 1kg
ST1489-5kg L-半胱氨酸(99.0-101.0%, BioPremium) 5kg
说明书 1份
保存条件:

室温避光保存。

注意事项:

本产品仅限于专业人员的科学研究用,不得用于临床诊断或治疗,不得用于食品或药品,不得存放于普通住宅内。

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