L(-)-Cistina 99%

Proveedor: Thermo Scientific

Sinónimos: (H-Cys-OH)2

111801000 111800025 111805000
ACRO111801000EA 110 EUR
ACRO111801000 ACRO111800025 ACRO111805000
L(-)-Cistina 99%
L(-)-Cistina
Formula: HOOCCH(NH₂)CH₂SSCH₂CH(NH₂)COOH
MW: 240,3 g/mol
Pto. Ebullición: 428 °C (1013 hPa)
Pto. de fusión: 260…261 °C
Densidad: 1,677 g/cm³ (20 °C)
Temperatura de almacenaje: Ambiente
Número MDL: MFCD00064228
Núm. CAS: 56-89-3
EINECS: 200-296-3
Índice Merck: 13,02811

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Resultados test especificaciones

Appearance White to almost white Crystalline powder or crystals
Infrared spectrum Conforms
Loss on drying ≤0.5 % (1 g, 105°C, 3 h)
Sulfated ash ≤0.1 %
Specific optical rotation -210° to -224° (20°C, 589 nm) (c=2, 1 M HCl) (on dried substance)
Titration excess NaOH ≥98.5 % (On dried substance)
Chloride (Cl) ≤200 ppm
Sulfate (SO4) ≤300 ppm
Ammonium (NH4) ≤200 ppm
Iron (Fe) ≤10 ppm
Heavy metals (as Pb) ≤10 ppm

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