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Merck

M9625

L-Methionine

≥98% (HPLC)

Synonym(s):

(S)-2-Amino-4-(methylmercapto)butyric acid, L-2-Amino-4-(methylthio)butanoic acid

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About This Item

Linear Formula:
CH3SCH2CH2CH(NH2)CO2H
CAS Number:
63-68-3
Molecular Weight:
149.21
NACRES:
NA.26
PubChem Substance ID:
24897343
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-562-9
MDL number:
MFCD00063097
Beilstein/REAXYS Number:
1722294

Product Name

L-Methionine, reagent grade, ≥98% (HPLC)

Quality Level

200

InChI key

FFEARJCKVFRZRR-BYPYZUCNSA-N

InChI

1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1

SMILES string

CSCC[C@H](N)C(O)=O

grade

reagent grade

assay

≥98% (HPLC)

form

powder

color

white

mp

284 °C (dec.) (lit.)

application(s)

detection

Gene Information

rat ... Ggt1(116568)

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Application

L-Methionine has been used in chloramine assay and malonaldehyde assay. It has also been used as a standard in methionine assay.

Biochem/physiol Actions

L-Methionine serves as precursor for transmethylation and transsulphuration. Methionine adenosylation results in the formation of S-adenosyl-L-methionine (SAM). SAM serves as a methyl donor to a number of substances. This methylation is significantly associated with the immune system functioning. Thus, SAM deficiency causes severe combined immunodeficiencies. L-Methionine′s metabolic product, glutathione, is known to regulate immune response and has antiviral action.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000480701
0000480701
0000514771
0000514773
0000514774

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Hypochlorite scavenging activity of hydroxycinnamic acids evaluated by a rapid microplate method based on the measurement of chloramines.
Firuzi O
The Journal of Pharmacy and Pharmacology, 55(7), 1021-1027 (2003)
The effects of processing methods on the levels of lysine, methionine and the general acceptability of ogi processed using starter cultures
O.D.Teniola and S.A.Odunfa
International Journal of Food Microbiology, 63(1), 1-9 (2001)
L-methionine as immune supportive supplement: a clinical evaluation
R. Van BrummelenD. du Toit
Amino Acids (2006)
Ronald O Ball et al.
The Journal of nutrition, 136(6 Suppl), 1682S-1693S (2006-05-17)
Sulfur amino acid metabolism has been receiving increased attention because of the link to chronic diseases such as cardiovascular disease, Alzheimer's disease, and diabetes. In addition, the role of cysteine and optimal intakes for physiological substrates such as glutathione are
Eline van Meel et al.
BMC medical genetics, 14, 106-106 (2013-10-10)
Methionyl-tRNA synthetase (MARS) catalyzes the ligation of methionine to its cognate transfer RNA and therefore plays an essential role in protein biosynthesis. We used exome sequencing, aminoacylation assays, homology modeling, and immuno-isolation of transfected MARS to identify and characterize mutations
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