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About This Item
Linear Formula:
CH3SCH2CH2CH(NH2)COOH
CAS Number:
Molecular Weight:
149.21
Beilstein:
636185
EC Number:
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26
Product Name
DL-Methionine, ≥99.0% (NT)
Quality Level
Assay
≥99.0% (NT)
form
powder or crystals
optical activity
[α]/D, c = 5 in 5 M HCl (inactive)
concentration
5% in 5 M HCl
ign. residue
≤0.05%
color
white
mp
280 °C (dec.) (lit.)
solubility
5 M HCl: 1 g/10 mL, clear, colorless to almost colorless
suitability
corresponds for TLC
application(s)
peptide synthesis
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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Application
DL-Methionine has been used to study the susceptibility of methionine to oxidation during the development of monoclonal antibodies.
Biochem/physiol Actions
Methionine is an essential amino acid which acts a precursor for transmethylation and transsulfuration. In proteins, L-methionine is the biologically active form. D-methionine is converted to L-methionine by enzymes in the body. The adenosylation of methionine results in the formation of S-adenosyl-L-methionine (SAM), which serves as a methyl donor to various substances. L-Methionine′s metabolic product glutathione is known to regulate immune response and has antiviral action.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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