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Merck

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%

Quality Level

100

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

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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
M Yoshikuni et al.
Developmental biology, 128(1), 236-239 (1988-07-01)
Several disulfide-reducing agents, such as dithiothreitol, 2,3-dimercapto-1-propanol, cysteine ethyl ester, and cysteine methyl ester enhanced the effectiveness of 1-methyladenine (1-MeAde) to induce oocyte maturation in the starfish Asterina pectinifera. This enhancement occurred at relatively low concentrations at which these agents
Mickael Alimi et al.
Inorganic chemistry, 51(17), 9350-9356 (2012-08-22)
Six Co(III) complexes based on unsubstituted or substituted TPA ligands (where TPA is tris(2-pyridylmethyl)amine) and acetohydroxamic acid (A), N-methyl-acetohydroxamic acid (B), or N-hydroxy-pyridinone (C) were prepared and characterized by mass spectrometry, elemental analysis, and electrochemistry: [Co(III)(TPA)(A-2H)](Cl) (1a), [Co(III)((4-Cl(2))TPA)(A-2H)](Cl) (2a), [Co(III)((6-Piva)TPA)(A-2H)](Cl)
T A Cook et al.
Biochemistry, 39(44), 13516-13523 (2000-11-07)
PDE6 (type 6 phosphodiesterase) from rod outer segments consists of two types of catalytic subunits, alpha and beta; two inhibitory gamma subunits; and one or more delta subunits found only on the soluble form of the enzyme. About 70% of
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