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Merck

277460

Sigma-Aldrich

3-(Methylthio)propionaldehyde

96%

Sinónimos:

3-(Methylmercapto)propionaldehyde, 3-(Methylthio)propanal, Methional, NSC 15874

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About This Item

Fórmula lineal:
CH3SCH2CH2CHO
Número de CAS:
Peso molecular:
104.17
Beilstein/REAXYS Number:
1739289
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor density

>1 (vs air)

Quality Level

vapor pressure

760 mmHg ( 165 °C)

assay

96%

form

liquid

refractive index

n20/D 1.483 (lit.)

bp

165-166 °C (lit.)

density

1.043 g/mL at 25 °C (lit.)

Storage temp.

2-8°C

SMILES string

CSCCC=O

InChI

1S/C4H8OS/c1-6-4-2-3-5/h3H,2,4H2,1H3

Inchi Key

CLUWOWRTHNNBBU-UHFFFAOYSA-N

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General description

3-(Methylthio)propionaldehyde (methional) is the major product of chemical methionine conversion via Strecker degradation in food.

Application

3-(Methylthio)propionaldehyde has been used as a reactant in:
  • Oxidative coupling and chemoselective oxidation
  • Intermolecular alkyne hydroacylation reactions
  • Oxidation of sulfides to sulfoxides
It can also be used as a biosynthetic precursor of ethylene.

Pictograms

Skull and crossbonesCorrosion

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

165.2 °F - closed cup

flash_point_c

74 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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M M W Etschmann et al.
Applied microbiology and biotechnology, 80(4), 579-587 (2008-07-04)
Yeasts can convert amino acids to flavor alcohols following the Ehrlich pathway, a reaction sequence comprising transamination, decarboxylation, and reduction. The alcohols can be further derivatized to the acetate esters by alcohol acetyl transferase. Using L: -methionine as sole nitrogen
Ethylene formation from methional.
W A Pryor et al.
Biochemical and biophysical research communications, 81(2), 498-503 (1978-03-30)
A Escudero et al.
Journal of agricultural and food chemistry, 48(9), 4268-4272 (2000-09-20)
A young white wine that had undergone spontaneous oxidation and showed a strong off-flavor reminiscent of cooked vegetables was demixed by salting out to obtain an ethanolic extract that retained the off-flavor of the wine, as was demonstrated by sensory
F Amárita et al.
FEMS microbiology letters, 204(1), 189-195 (2001-10-30)
Lactic acid bacteria were screened for methional production from 4-methylthio-2-ketobutanoate. Only Lactococcus lactis IFPL730 produced high amounts of methional. It was demonstrated that production of this compound was an exclusively enzymatic reaction. The present work describes for the first time
M Murata et al.
Japanese journal of cancer research : Gann, 90(3), 268-275 (1999-06-08)
Adduct formation has been considered to be a major causal factor of DNA damage by carcinogenic heterocyclic amines. By means of experiments with 32P-labeled DNA fragments and an electrochemical detector coupled to a high-pressure liquid chromatograph, we investigated whether the

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