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(-)-S-Methyl-L-cysteine

(-)-S-Methyl-L-cysteine structure

CAS No:
1187-84-4
Formula:
C4H9NO2S
Chemical Name:
(-)-S-Methyl-L-cysteine
Synonyms:
L-Cysteine,S-methyl-;Alanine,3-(methylthio)-,L-;S-Methyl-L-cysteine;S-Methylcysteine;L-S-Methylcysteine;3-(Methylthio)alanine;(-)-S-Methyl-L-cysteine;S-Methyl-(R)-cysteine;NSC 15387;(2R)-2-Amino-3-(methylsulfanyl)propanoic acid;(2R)-2-Azaniumyl-3-methylsulfanylpropanoate;1926-50-7
Categories:
Biochemical Engineering > Amino Acids and Derivatives

Description

white to light beige fine crystalline powderChEBI: A cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group.

S-methylcysteine is a cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group. It has a role as a human urinary metabolite and a plant metabolite. It is a tautomer of a S-methylcysteine zwitterion.

(-)-S-Methyl-L-cysteine Basic Attributes

Molecular Weight：

135.18

Exact Mass：

135.18

EC Number：

214-701-6

UNII：

A34I1H07YM

HScode：

29309090

Characteristics

PSA：

88.6

XLogP3：

-2.7

Appearance：

Light beige.

Density：

1.149 (estimate)

Melting Point：

248 °C (decomp)

Boiling Point：

300.3±37.0 °C(Predicted)

Flash Point：

100.7±24.6 °C

Refractive Index：

-30 ° (C=2, H2O)

Storage Conditions：

−20°C

Vapor Pressure：

0.011mmHg at 25°C

Specific rotation：

-29.5 º (c=1,water)

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

safety instructions：

22-24/25-36/37/39-26

Marks：

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H302

GHS Classification：

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Drug Information

MeSH Entry Terms：

S-11C-methyl-L-cysteine

(-)-S-Methyl-L-cysteine Use and Manufacturing

Methionine sulfoxide reductase substrate

Computed Properties

Molecular Weight:135.19
XLogP3:-2.7
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:3
Exact Mass:135.03539970
Monoisotopic Mass:135.03539970
Topological Polar Surface Area:88.6
Heavy Atom Count:8
Complexity:86.1
Defined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Guide of (-)-S-Methyl-L-cysteine

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
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(-)-S-Methyl-L-cysteine

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