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Key Documents

W330108

Sigma-Aldrich

DL-Methionine

99%, FCC, FG

Synonym(s):

(±)-2-Amino-4-(methylmercapto)butyric acid, DL-2-Amino-4-(methylthio)butanoic acid

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About This Item

Linear Formula:
CH3SCH2CH2CH(NH2)COOH
CAS Number:
Molecular Weight:
149.21
FEMA Number:
3301
Beilstein:
636185
EC Number:
Council of Europe no.:
569
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
17.014
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Halal

Agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 872/2012
FCC
FDA 21 CFR 172.320

Assay

99%

mp

280 °C (dec.) (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

acidic; sulfurous

SMILES string

CSCCC(N)C(O)=O

InChI

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

InChI key

FFEARJCKVFRZRR-UHFFFAOYSA-N

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General description

DL-Methionine is a sulfur-containing amino acid mainly used as a dietary supplement for poultry. It is a key precursor for synthesizing carnitine and creatine in the body.

Application


  • Influence of DL methionine and sodium metabisulphite on the photostability of vitamin K1.: This study examines how DL methionine and sodium metabisulphite impact the photostability of vitamin K1, essential for understanding the interactions and stability of vitamin formulations (Ho and Wong, 1998).

  • Amino acid polymers for biomedical applications. I. Permeability properties of L-leucine DL-methionine copolymers.: This research explores the permeability properties of copolymers made from L-leucine and DL-methionine, which have significant implications for biomedical applications like drug delivery systems (Martin, May, and McMahon, 1971).

  • ESR measurement of short-lived free radicals obtained by addition of OH to DL-methionine.: This article describes the electron spin resonance (ESR) measurements of short-lived free radicals produced when hydroxyl groups are added to DL-methionine, offering insights into the radical chemistry of amino acids (Bürk and Schoffa, 1969).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Replacement value of betaine for DL-methionine in male broiler chicks.
Schutte JB, et al.
Poultry Science, 76(2), 321-325 (1997)
Pilar Lloris-Garcerá et al.
Journal of molecular biology, 426(11), 2246-2254 (2014-04-03)
The increasing number of solved membrane protein structures has led to the recognition of a common feature in a large fraction of the small-molecule transporters: inverted repeat structures, formed by two fused homologous membrane domains with opposite orientation in the
Shawn Flanagan et al.
Antimicrobial agents and chemotherapy, 59(1), 178-185 (2014-10-22)
Prolonged treatment with the oxazolidinone linezolid is associated with myelosuppression, lactic acidosis, and neuropathies, toxicities likely caused by impairment of mitochondrial protein synthesis (MPS). To evaluate the potential of the novel oxazolidinone tedizolid to cause similar side effects, nonclinical and
Camilla Schalin-Jäntti et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 54(5), 739-747 (2013-04-05)
All patients with primary hyperparathyroidism should undergo localization studies before reoperation, but it is not known which method is most accurate. The purpose of this prospective study was to compare the performance of planar scintigraphy with (123)I/(99m)Tc-sestamibi, (99m)Tc-sestamibi SPECT (SPECT/CT)
Gavin C Preston et al.
The EMBO journal, 34(15), 2008-2024 (2015-07-03)
Myc controls the metabolic reprogramming that supports effector T cell differentiation. The expression of Myc is regulated by the T cell antigen receptor (TCR) and pro-inflammatory cytokines such as interleukin-2 (IL-2). We now show that the TCR is a digital

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