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779539

L -胱氨酸

Name: <SC>L </SC>-胱氨酸
Brand: ALDRICH

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:

56-89-3

分子量:

240.30

UNSPSC Code:

12352209

NACRES:

NA.22

PubChem Substance ID:

329768048

EC Number:

200-296-3

Beilstein/REAXYS Number:

1728094

MDL number:

MFCD00064228

Assay:

≥98.5%

Form:

powder

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属性

Quality Level

200

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 (SO₄^2-): ≤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

说明

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

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存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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)

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)

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全球贸易项目编号

货号	GTIN
779539-100G	04061838351937
779539-1KG	04061826681060
779539-25KG	04061833367575