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L -胱氨酸

L-Cystine
产品编号:3103356
规格:produced by Wacker Chemie AG, Burghausen, Germany, ≥98.5%
CAS NO:56-89-3
包装规格:100 G,1 KG,25 KG
产品类别:进口试剂
品牌:Sigma-Aldrich
优惠价:立即咨询
产品编号包装单位单价(元)国内现货国外库存询价单
3103356100 G281
31033561 KG2440
310335625 KG26850
产品别名

56-89-3

L -胱氨酸

L-Cystine

(R,R)-3,3′-Dithiobis(2-aminopropionicacid)

(R,R)-3,3′-亚二硫基二(2-丙氨酸)

结构式
基本信息
Linear Formula【线性分子式】
[-SCH2CH(NH2)CO2H]2
Molecular weight
240.30
Beilstein
1728094
EC number【EC 号】
200-296-3
MDL number
MFCD00064228
PubChem Substance ID【PubChem化学物质编号】
329768048
NACRES
NA.22
General description【一般描述】
This product is supplied from Wacker FERMOPURE® material, but is sold for R&D use only, not for drug, household or other uses.
L-Cystine is an amino acid mainly found in the keratin of hair.
Application【应用】
L-Cystine can be used as a starting material for the synthesis of d-biotin, aromatic-bridged cystine cyclic peptides (cystinophanes), chiral imidazolidine disulfides and biodegradable PEGylated gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) L-cystine copolymers.
Legal Information【法律信息】
FERMOPURE is a registered trademark of Wacker Chemie AG
产品性质
Quality Level【质量水平】
200
grade【等级】
produced by Wacker Chemie AG, Burghausen, Germany
Assay【测定】
≥98.5%
optical activity【旋光性】
[α]/D -224 to -218°
reaction suitability
reaction type: solution phase peptide synthesis
impurities【杂质】
≤0.02% ammonium
≤0.2% ninhidrin positive substances (each)
≤10 ppm heavy metals
ign. residue【灼烧残渣】
≤0.1%
loss【缺失】
≤0.2% loss on drying
mp
>240 ℃ (dec.) (lit.)
anion traces【痕量阴离子】
chloride (Cl-): ≤200 ppm
sulfate (SO42-): ≤300 ppm
cation traces【痕量阳离子】
As: ≤1 ppm
Fe: ≤10 ppm
Pb: ≤5 ppm
suitability【适用性】
clear, colorless for appearance of solution
SMILES string
N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O
InChI
1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
InChI key
LEVWYRKDKASIDU-IMJSIDKUSA-N
安全信息
Storage Class Code【储存分类代码】
13 - Non Combustible Solids
WGK
WGK 1
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