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64319

Sigma-Aldrich

L-Methionine

BioUltra, ≥99.5% (NT)

Synonym(s):
(S)-2-Amino-4-(methylmercapto)butyric acid, L-2-Amino-4-(methylthio)butanoic acid
Linear Formula:
CH3SCH2CH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
149.21
Beilstein:
1722294
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

biological source

synthetic

Quality Level

product line

BioUltra

Assay

≥99.5% (NT)

form

powder or crystals

optical activity

[α]20/D +23.7±0.5°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test
≤0.5% foreign amino acids

ign. residue

≤0.1%

loss

≤0.1% loss on drying, 20 °C (HV)

color

white

mp

284 °C (dec.) (lit.)

solubility

1 M HCl: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤100 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.5 M in 1 M HCl

UV absorption

λ: 260 nm Amax: 0.40
λ: 280 nm Amax: 0.05

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

Gene Information

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This Item
M9625M5308PHL82585
L-Methionine BioUltra, ≥99.5% (NT)

Sigma-Aldrich

64319

L-Methionine

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

Sigma-Aldrich

M9625

L-Methionine

L-Methionine from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 99.0-101.0%

Sigma-Aldrich

M5308

L-Methionine

L-Methionine phyproof® Reference Substance

PHL82585

L-Methionine

product line

BioUltra

product line

-

product line

BioXtra

product line

phyproof® Reference Substance

assay

≥99.5% (NT)

assay

≥98% (HPLC)

assay

99.0-101.0%

assay

≥95.0% (HPLC)

form

powder or crystals

form

powder

form

powder

form

crystals

optical activity

[α]20/D +23.7±0.5°, c = 5% in 5 M HCl

optical activity

-

optical activity

-

optical activity

-

impurities

insoluble matter, passes filter test, ≤0.5% foreign amino acids

impurities

-

impurities

endotoxin, tested

impurities

-

color

white

color

white

color

white

color

-

Other Notes

Synthesis of labels for protonation studies by Fourier Transform Infrared Methods for L-glutaric-513C acid; Spacer in isotachophoresis of serum proteins; Essential in culture media for some malignant human cell lines; Growth requirement of various microorganisms

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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