L(-)-Cistina 98.5-101.5% (base secada) FCC para producción biofarmacéutica, SAFC®
Proveedor: MERCK PRODUCTION CHEMICALS
Sinónimos:
(H-Cys-OH)2
1.02836.1000
1.02836.9029
1.02836.1000EA
588
EUR
1.02836.1000
1.02836.9029
L(-)-Cistina 98.5-101.5% (base secada) FCC para producción biofarmacéutica, SAFC®
L(-)-Cistina
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Formula:
HOOCCH(NH₂)CH₂SSCH₂CH(NH₂)COOH MW: 240,3 g/mol Pto. Ebullición: 428 °C (1013 hPa) Pto. de fusión: 261…262 °C (desc.) 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 |
Resultados test especificaciones
| Assay (ex N, calc. on dried substance) | 98.5 - 101.5 % |
| Identity (IR-spectrum) | Passes Test |
| Appearance | White to almost white, fine-crystalline powder |
| Appearance of solution (100 g/l, hydrochloric acid 2 mol/l) | Clear and Colorless |
| Spec. Rotation (α20/D, 20 g/l, Hydrochloric Acid 1 mol/l, Previously Dried Substance) | –215 to –225 |
| Heavy Metals (as Pb) | ≤10 ppm |
| Pb (Lead) | ≤5 ppm |
| Ninhydrin - Positive Substances (LC) (Largest Single Impurity) | ≤0.2 % |
| Ninhydrin - Positive Substances (LC) (Sum of all Impurities) | ≤0.5 % |
| Sulfated Ash (800 °C) | ≤0.1 % |
| Loss on Drying (105 °C; 3 h) | ≤0.2 % |
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