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L-Cysteine, Methyl Ester, Hydrochloride

CAS: 18598-63-5 | C4H10ClNO2S

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 18598-63-5
Molecular Formula: C4H10ClNO2S
Molecular Mass: 171.65 g/mol

Names and Synonyms:

L-Cysteine, Methyl Ester, Hydrochloride
Actiol
Methyl cysteinate hydrochloride
Methyl (R)-2-amino-3-mercaptopropanoate hydrochloride
Methyl L-cysteinate hydrochloride
LJ 48
NSC 161611
(R)-Methyl 2-amino-3-mercaptopropanoate hydrochloride
(R)-Cysteine methyl ester hydrochloride
L-Cysteine, methyl ester, hydrochloride (1:1)
Cysteine, methyl ester, hydrochloride, L-
L-Cysteine, methyl ester, hydrochloride
Cysteine methyl ester hydrochloride
Methyl cysteine hydrochloride
Methyl β-mercaptoalanine hydrochloride
Methyl α-amino-β-mercaptopropionate hydrochloride
Acdrile
Visclair
Mecysteine hydrochloride
Methyl 2-amino-3-mercaptopropionate hydrochloride
Pectite
Zeotin

Identifiers:

SMILES:
COC(=O)[C@@H](N)CS.Cl
InChI:
InChI=1S/C4H9NO2S.ClH/c1-7-4(6)3(5)2-8;/h3,8H,2,5H2,1H3;1H/t3-;/m0./s1

Key Properties

Melting Point
140.5 °C CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 171.65 g/mol CAS Common Chemistry
171.64900000000003 g/mol RDKit
171.01207724 g/mol RDKit
Canonical SMILES Cl.O=C(OC)C(N)CS CAS Common Chemistry
InChI InChI=1S/C4H9NO2S.ClH/c1-7-4(6)3(5)2-8;/h3,8H,2,5H2,1H3;1H/t3-;/m0./s1 CAS Common Chemistry
InChI Key InChIKey=WHOHXJZQBJXAKL-DFWYDOINSA-N CAS Common Chemistry
Melting Point 140.5 °C CAS Common Chemistry
Name L-Cysteine, methyl ester, hydrochloride CAS Common Chemistry
Heavy Atom Count 9 RDKit
Hydrogen Bond Acceptors 4 RDKit
Hydrogen Bond Donors 2 RDKit
Rotatable Bonds 2 RDKit
Aromatic Ring Count 0 RDKit
Topological Polar Surface Area 52.32 Ų RDKit
LogP -0.16169999999999973 RDKit
Molar Refractivity 41.09240000000001 RDKit

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