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C121908

Sigma-Aldrich

L-Cysteine ethyl ester hydrochloride

98%, for peptide synthesis

Synonym(s):

(R)-Ethyl 2-amino-3-mercaptopropanoate hydrochloride, Cystanin, Ethyl L-cysteinate hydrochloride

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About This Item

Linear Formula:
HSCH2CH(NH2)COOC2H5 · HCl
CAS Number:
868-59-7
Molecular Weight:
185.67
Beilstein:
3562600
EC Number:
212-779-6
MDL number:
MFCD00012631
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
24892386
NACRES:
NA.22

Product Name

L-Cysteine ethyl ester hydrochloride, 98%

Assay

98%

form

powder

optical activity

[α]20/D −7.9°, c = 1 in 1 M HCl

optical purity

ee: 99% (GLC)

reaction suitability

reaction type: solution phase peptide synthesis

color

white

mp

123-125 °C (lit.)

application(s)

peptide synthesis

SMILES string

Cl[H].CCOC(=O)[C@@H](N)CS

InChI

1S/C5H11NO2S.ClH/c1-2-8-5(7)4(6)3-9;/h4,9H,2-3,6H2,1H3;1H/t4-;/m0./s1

InChI key

JFKJWWJOCJHMGV-WCCKRBBISA-N

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Related Categories

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL9855
BCCJ8383
BCCH8164
BCCD6171
BCCD2344

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Sigma-Aldrich

01423

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Krum Kafedjiiski et al.
International journal of pharmaceutics, 343(1-2), 48-58 (2007-06-05)
It was the aim of this study to synthesize and characterize a novel hyaluronic acid-cysteine ethyl ester (HA-Cys) conjugate providing improved mucoadhesive properties and a significantly lowered biodegradation rate. Mediated by carbodiimide and N-hydroxysuccinimide, L-cysteine ethyl ester hydrochloride was covalently
Ewa Mironiuk-Puchalska et al.
Nucleosides, nucleotides & nucleic acids, 31(1), 72-84 (2012-01-20)
The novel aza-analogues of tiazofurin (TZF) with 2-[5,5-bis(hydroxymethyl)pyrrolidin-2-yl] moiety, as sugar mimic, were synthesized from O,O-cyclohexylidene derivative of 4,4-bis(hydroxymethyl)-4-nitrobutanal in multi-gram scale. The synthetic route consisted of three stages: (i) the synthesis of corresponding derivative of 5,5-bis(hydroxymethyl)pyrrolidine-2-carbonitrile, (ii) the construction
Mariella Terán et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 57(2), 347-352 (2004-03-17)
Tablets containing drugs of different lipophilicity, ranitidine and cinarizine, and placebo were prepared and their in vitro behaviour was studied by dissolution and disintegration tests. [(99m)Tc]Diethylenetriamine-pentaacetic acid ([(99m)Tc]DTPA) and [(99m)Tc]ethyl cysteinate dimer ([(99m)Tc]ECD) were used as tracers of the process.
Shane D Roberts et al.
Diseases of aquatic organisms, 66(1), 21-28 (2005-09-24)
There is a need for the development of alternative therapeutic treatments for amoebic gill disease (AGD) in Atlantic salmon Salmo salar L. to maintain the sustainability of the Tasmanian Atlantic salmon aquaculture industry. This study aimed to assess the effects
Yinan Ma et al.
Macromolecular bioscience, 16(1), 151-159 (2015-09-22)
Oligomerization of thiol-unprotected L-cysteine ethyl ester (Cys-OEt) catalyzed by proteinase K in aqueous solution has been used to synthesize oligo(L-cysteine) (OligoCys) with a well-defined chemical structure and relatively large degree of polymerization (DP) up to 16-17 (average 8.8). By using
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