L-Methionin ≥99%, Millipore®
Lieferant: Merck
Synonyms:
(S)-(-)-2-Amino-4-(methylmercapto)buttersäure
, (S)-(-)-2-Amino-4-(methylthio)buttersäure
, H-Met-OH
, L(-)-Methionin
, (S)-(-)-Methionin
M-Clarity™ Qualitätsstufe = MQ100
1.05707.9010EA
0
CHF
1.05707.9010
1.05707.0025
1.05707.0100
1.05707.1000
L-Methionin ≥99%, Millipore®
L-Methionin
|
Formel:
C₅H₁₁NO₂S MW: 149,21 g/mol Siedepunkt: 278 °C (1013 hPa) Melting Pt: 136 °C Dichte: 1,373 g/cm³ (20 °C) Lager Temperatur: Raumtemperatur |
MDL Number:
MFCD00063097 CAS-Nummer: 63-68-3 EINECS: 200-562-9 Merck Index: 13,06004 |
Spezifikation Testergebnisse
| Assay (HClO4-titration) | 99% min |
| Ammonium (NH4) | 0.01% max |
| Appearance | Passes test |
| Appearance of solution (0.5mol/L, HCl 1mol/L) | Passes test |
| Arsenic (As) | 0.0005% max |
| Calcium (Ca) | 0.001% max |
| Chloride (Cl) | 0.02% max |
| Cobalt (Co) | 0.0005% max |
| Foreign amino acids | 0.3% max |
| Heavy metals (as Pb) | 0.001% max |
| Identity (IR-spectrum) | Passes test |
| Iron (Fe) | 0.0005% max |
| Loss on drying [105°, 3 hr) | 0..3% max |
| Magnesium (Mg) | 0.0005% max |
| Other ninhydrine positive substances (as glycine) | 0.1% max |
| Potassium (K) | 0.0005% max |
| Sodium (Na) | 0.005% max |
| Specific rotation ([a]20/D, 5%, in 1N HCl) | +22.5-+23.5° |
| Sulfate (SO4) | 0.01% max |
| UV Absorption (260nm, 0.5mol/L, 1cm, HCl 1mol/L) | 0.5 max |
| UV Absorption (280nm, 0.5mol/L, 1cm, HCl 1mol/L) | 0.2 max |
| Zinc (Zn) | 0.0005% max |
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