L(+)-Cystéine, chlorhydrate
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Attention
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Synonyme(s):
H-Cys-OH.HCl, (R)-(+)-Cystéine, chlorhydrate
Formule:
HSCH₂CH(NH₂)COOH·HCl Point de fusion: 175 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00064553 Numéro CAS: 52-89-1 EINECS: 200-157-7 Indice Merck: 13,02810 |
Résultats des tests de spécification
Appearance | White to off-white Crystalline powder or crystals |
Infrared spectrum | Conforms |
Titration Iodimetric | 98.5 to 101.0 % (on dried substance) |
Loss on drying |
8.0 % to 12.0 % (1g, vacuum |
Sulfated ash | ≤0.1 % |
Specific optical rotation | +5.5° to +7.0° (20°C, 589 nm) (c=8, 6 N HCl) (on dried substance) |
Sulfate (SO4) | ≤300 ppm |
Ammonium (NH4) | ≤200 ppm |
Iron (Fe) | ≤20 ppm |
Heavy metals (as Pb) | ≤10 ppm |
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