Drukuj

L(-)-cystyna 99%

Dostawca: Thermo Fisher Scientific

Synonim: (R)-(-)-Cystine, (2R,2'R)-3,3'-Disulphanediylbis(2-aminopropanoic acid), (H-Cys-OH)2

111801000 111800025 111805000
ACRO111801000EA 535 PLN
ACRO111801000 ACRO111800025 ACRO111805000
L(-)-cystyna 99%
L(-)-cystyna
Formuła: HOOCCH(NH₂)CH₂SSCH₂CH(NH₂)COOH
Temp. Wrzenia: 428 °C (1013 hPa)
Temp. topnienia: 260…261 °C
Gęstość: 1,677 g/cm³ (20 °C)
Temperatura przechowywania: Temperatura otoczenia
Numer MDL: MFCD00064228
Numer CAS: 56-89-3
Numer WE (dawny EINECS): 200-296-3
Klasyfikacja Merck : 13,02811

Zobacz ceny

Wyniki testów specyfikacyjnych

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


Learn more

About VWR

Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...

Więcej About VWR