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Merck
CN

64320

L-Methionine

≥99.0% (NT)

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:
Molecular Weight:
149.21
EC Number:
200-562-9
UNSPSC Code:
12352209
MDL number:
Beilstein/REAXYS Number:
1722294
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assay

≥99.0% (NT)

optical activity

[α]20/D +23.7±0.5°, c = 5% in 5 M HCl

impurities

≤0.5% foreign amino acids

ign. residue

≤0.1% (as SO4)

loss

≤0.1% loss on drying, 110 °C

mp

284 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤100 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

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

InChI

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

InChI key

FFEARJCKVFRZRR-BYPYZUCNSA-N



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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Gang Shen et al.
Journal of medicinal chemistry, 49(10), 3003-3011 (2006-05-12)
S-Ribosylhomocysteinase (LuxS) catalyzes the cleavage of the thioether linkage in S-ribosylhomocysteine (SRH) to produce homocysteine and 4,5-dihydroxy-2,3-pentanedione, the precursor of autoinducer 2. Inhibitors of LuxS should interfere with bacterial interspecies communication and potentially provide a novel class of antibacterial agents.
Alessandra S Eustáquio et al.
Nature chemical biology, 4(1), 69-74 (2007-12-07)
Halogen atom incorporation into a scaffold of bioactive compounds often amplifies biological activity, as is the case for the anticancer agent salinosporamide A (1), a chlorinated natural product from the marine bacterium Salinispora tropica. Significant effort in understanding enzymatic chlorination
Denis Fourches et al.
Chemical research in toxicology, 23(1), 171-183 (2009-12-18)
Drug-induced liver injury is one of the main causes of drug attrition. The ability to predict the liver effects of drug candidates from their chemical structures is critical to help guide experimental drug discovery projects toward safer medicines. In this



Global Trade Item Number

SKUGTIN
V900395-25G04061833462195
PHR1939-500MG04061835221073
H54409-10G04061833799420
H54409-2.5G04061833799437
H5534-10MG04061833799567
H54409-25G04061833799444
H5534-100G04061834402695
41875-100MG04061835560516
V900395-100G04061833469835
56250-100G04061833380888
56250-25G04061833417300
56250-5G04061833356005
56250-1G-KC04061824803631
H54409-100G04061833799413
H5534-1KG04061834402701
H5534-25G04061833799574