All Photos(4)

M9500

Sigma-Aldrich

DL-Methionine

≥99%

Synonym(s):
(±)-2-Amino-4-(methylmercapto)butyric acid, DL-2-Amino-4-(methylthio)butanoic acid
Linear Formula:
CH3SCH2CH2CH(NH2)COOH
CAS Number:
Molecular Weight:
149.21
Beilstein:
636185
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.26

Quality Level

assay

≥99%

form

powder

application(s)

cell culture | insect: suitable
cell culture | mammalian: suitable
peptide synthesis: suitable

color

white

mp

280 °C (dec.) (lit.)

solubility

H2O: soluble

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 an essential amino acid containing sulphur. Methionine consists of an asymmetric carbon and exists as D (dextrogyre) and L (levogyre) optical isomers. The L-methionine is considered as biologically active. The racemic mixture of D and L-isomers forms DL-methionine, which is the commercially available methionine.

Application

DL-Methionine has been used to study its effect on the growth and feed utilization of Nile tilapia. It has also been used as a part of standard diet in animal models.

Packaging

1 kg in poly bottle
100, 500 g in poly bottle

Biochem/physiol Actions

Methionine offers protection against disorders related to hair, skin and nails. It elevates lecithin production in the liver and thereby reduces cholesterol level. It naturally serves as a heavy metal chelating agent, regulating ammonia concentration in the urine. This ameliorates bladder irritation. Methionine is also known to induce hair growth.
DL-Methionine is an amino acid that has a role in the defence of oxidative stress.

Storage Class Code

11 - Combustible Solids

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Gel growth and characterization of beta-DL-methionine
Ramachandran E and Natarajan S
Crystal Research and Technology, 41(4), 411-415 (2006)
Glucose homeostasis in mice is transglutaminase 2 independent
Iismaa SE, et al.
PLoS ONE, 8(5), e63346-e63346 (2013)
Dietary Crystalline DL-Methionine Supplementation of Oilseed Meal-Based Diets: Effects on Growth and Feed Utilization of Juvenile Nile Tilapia (Oreochromis niloticus L.)
Agbo NW, et al.
American Journal of Experimental Agriculture, 4(11), 1385-1396 (2014)
Partial replacement of fishmeal and fish oil by algal meals in diets of red drum Sciaenops ocellatus
Perez-Velazquez M, et al.
Aquaculture (Amsterdam, Netherlands), 487, 41-50 (2018)
DL-Methionine from Methional and Hydrogen Cyanide - Cost Analysis - Methionine E11A, 6-6 (2016)

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