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Merck
CN

410209

L-Cysteine methyl ester hydrochloride

98%, for peptide synthesis

Synonym(s):

(R)-Cysteine methyl ester hydrochloride

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About This Item

Linear Formula:
HSCH2CH(NH2)COOCH3 · HCl
CAS Number:
18598-63-5
Molecular Weight:
171.65
NACRES:
NA.22
PubChem Substance ID:
24865699
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
242-435-0
MDL number:
MFCD00038985
Beilstein/REAXYS Number:
3685824

Key Documents

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Product Name

L-Cysteine methyl ester hydrochloride, 98%

InChI key

WHOHXJZQBJXAKL-DFWYDOINSA-N

InChI

1S/C4H9NO2S.ClH/c1-7-4(6)3(5)2-8;/h3,8H,2,5H2,1H3;1H/t3-;/m0./s1

SMILES string

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

assay

98%

form

solid

optical activity

[α]20/D −1.8°, c = 10 in methanol

reaction suitability

reaction type: solution phase peptide synthesis

mp

142 °C (dec.) (lit.)

application(s)

peptide synthesis

Quality Level

100

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Related Categories

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKBX6175V
MKBS8811V
MKBP7996V
MKBH4741V
MKBF8304V

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Mohamed R Shehata et al.
Dalton transactions (Cambridge, England : 2003), (6)(6), 779-786 (2008-02-02)
The complex-formation equilibria of [Pd(SMC)(H2O)2]+, where SMC = S-methyl-l-cysteinate, with bio-relevant ligands such as amino acids, peptides, dicarboxylic acids and DNA constituents were studied and their formation constants were determined. The binding mode of the ligands containing various functional groups
A F Lailey et al.
Biochemical pharmacology, 42 Suppl, S47-S54 (1991-12-11)
Perfluoroisobutene (PFIB) is a hydrophobic reactive gas produced by the pyrolysis of polytetrafluoroethane which induces pulmonary oedema similar to that induced by phosgene when inhaled. When a lethal dose is inhaled by Porton strain rats total non-protein thiol (NPSH) and
H Yin et al.
Chemical research in toxicology, 9(1), 140-146 (1996-01-01)
Trihaloacetaldehydes are used as sedatives, are key intermediates in the metabolism of 1,1,1,2-tetrahaloethanes, some of which are chlorofluorocarbon substitutes, and are metabolites of trihaloethanols, which are intestinal and bone marrow toxins. In the present study, trifluoroacetaldehyde was used as a
Itai Chipinda et al.
Chemical research in toxicology, 19(3), 341-350 (2006-03-21)
Diisocyanates (dNCOs) are the most commonly reported cause of chemically induced occupational asthma, but the ultimate antigenic form is unknown. Reactions of the three most common monomeric dNCOs, hexamethylene dNCO (HDI), methylene diphenylisocyanate (MDI), and toluene dNCO (TDI), with cysteine
B E Svensson
The Biochemical journal, 253(2), 441-449 (1988-07-15)
Nine low-Mr thiols were compared with regard to their ability to function as myeloperoxidase-oxidase substrates under conditions where no auto-oxidation of the thiols could be observed. The methyl and ethyl esters of cysteine were found to be about twice as
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