L-Méthionine 99, Millipore®
Marques : MerckTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
H-Met-OH, (S)-(-)-Méthionine, L(-)-Méthionine
MQ100
Formule:
C₅H₁₁NO₂S Poids moléculaire: 149.21 g/mol Point d'ébullition: 278 Point de fusion: 136 Densité: 1.373 g/cm³ (20 °C) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00063097 Numéro CAS: 63-68-3 EINECS: 200-562-9 Indice Merck: 13,06004 |
Résultats des tests de spécification
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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