779539
L -胱氨酸
Wacker Chemie AG, ≥98.5%
别名:
(R,R)-3,3′-亚二硫基二(2-丙氨酸)
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关于此项目
线性分子式:
[-SCH2CH(NH2)CO2H]2
化学文摘社编号:
分子量:
240.30
UNSPSC Code:
12352209
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-296-3
Beilstein/REAXYS Number:
1728094
MDL number:
产品名称
L -胱氨酸, Wacker Chemie AG, ≥98.5%
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
assay
≥98.5%
form
powder
optical activity
[α]/D -224 to -218°
reaction suitability
reaction type: solution phase peptide synthesis
manufacturer/tradename
Wacker Chemie AG
impurities
≤0.02% ammonium
≤0.2% ninhidrin positive substances (each)
≤10 ppm heavy metals
ign. residue
≤0.1%
loss
≤0.2% loss on drying
mp
>240 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤200 ppm
sulfate (SO42-): ≤300 ppm
cation traces
As: ≤1 ppm
Fe: ≤10 ppm
Pb: ≤5 ppm
suitability
clear, colorless for appearance of solution
Quality Level
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Application
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.
General description
L-Cystine is an amino acid mainly found in the keratin of hair.
This product is supplied from Wacker FERMOPURE® material, but is sold for R&D use only, not for drug, household or other uses.
Legal Information
FERMOPURE is a registered trademark of Wacker Chemie AG
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Cystinophanes, a novel family of aromatic-bridged cystine cyclic peptides: synthesis, crystal structure, molecular recognition, and conformational studies.
Ranganathan D, et al.
Journal of the American Chemical Society, 120(12), 2695-2702 (1998)
L-Cystine
Gortner RA and Hoffman WF
Organic Syntheses, 5, 39-39 (1925)
PEG-g-poly (GdDTPA-co-L-cystine): a biodegradable macromolecular blood pool contrast agent for MR imaging.
Mohs A M, et al.
Bioconjugate Chemistry, 15(6), 1424-1430 (2004)
Synthesis of d-biotin from L-cystine via intramolecular [3+ 2] cycloaddition
Baggiolini E G, et al.
Journal of the American Chemical Society, 104(23), 6460-6462 (1982)
Synthesis of new chiral imidazolidine disulfides derived from l-cystine and their application in the enantioselective addition of diethylzinc to aldehydes
Braga A L, et al.
Tetrahedron Letters, 43(13), 2335-2337 (2002)
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