S-(Carboxymethyl)-L-cysteine 98%
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Attention
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Synonyme(s):
3-[(Carboxymethyl)thio]alanine, Carbocisteine, Carbocysteine
CAS No.: 638-23-3
Formule:
C₅H₉NO₄S Point de fusion: 205…207 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00002614 Numéro CAS: 638-23-3 |
Résultats des tests de spécification
Appearance | White to off-white Powder |
Infrared spectrum | Conforms |
Loss on drying | ≤0.5 % (105°C, 3 hrs) |
TLC | ≥97.5 % |
Appearance of solution | (1% soln. in 0.1 N HCl, gently warmed): clear colorless |
Residue after ignition | ≤0.2 % |
Specific optical rotation | -29° to -33° (20°C, 589 nm) (c=1, 10% NaHCO3) |
Titration with HClO4 | ≥97.5 % |
Chloride (Cl) | ≤1000 ppm |
Iron (Fe) | ≤5 ppm |
Heavy metals (as Pb) | ≤10 ppm |
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