779539
L-Cystine
Wacker Chemie AG, ≥98.5%
동의어(들):
(R,R)-3,3′-Dithiobis(2-aminopropionic acid)
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
[-SCH2CH(NH2)CO2H]2
CAS 번호:
Molecular Weight:
240.30
UNSPSC Code:
12352209
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-296-3
Beilstein/REAXYS Number:
1728094
MDL number:
Assay:
≥98.5%
Form:
powder
Quality Level
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
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
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.
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.
Legal Information
FERMOPURE is a registered trademark of Wacker Chemie AG
저장 등급
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
L-Cystine
Gortner RA and Hoffman WF
Organic Syntheses, 5, 39-39 (1925)
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)
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)
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 779539-100G | 04061838351937 |
| 779539-1KG | 04061826681060 |
| 779539-25KG | 04061833367575 |