| 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 |
| 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 |
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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