L-Cysteine hydrochloride monohydrate
Bezeichnung:L-Cysteine hydrochloride monohydrate
CAS-Nr7048-04-6
Englisch Name:L-Cysteine hydrochloride monohydrate
CBNumberCB9694981
SummenformelC3H10ClNO3S
Molgewicht175.63
MOL-Datei7048-04-6.mol
L-Cysteine hydrochloride monohydrate physikalisch-chemischer Eigenschaften
Schmelzpunkt | 175°C |
alpha | +6.0~+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis) |
Dichte | 1.54 g/cm3 |
Dampfdruck | <0.1 hPa (20 °C) |
Brechungsindex | 6 ° (C=8, 1mol/L HCl) |
storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
Löslichkeit | H2O: 1 M at 20 °C, clear, colorless |
Aggregatzustand | Solid |
Farbe | White |
PH | 0.8-1.2 (100g/l, H2O, 20℃) |
Säure-Base-Indikators(pH-Indikatoren) | 1 - 2 |
Optische Aktivität | [α]20/D +5.6±0.3°, c = 5% in 5 M HCl |
Wasserlöslichkeit | Soluble in cold water. |
Sensitive | Hygroscopic |
maximale Wellenlänge (λmax) | λ: 260 nm Amax: 1.0 λ: 280 nm Amax: 0.3 |
Merck | 14,2781 |
BRN | 5158059 |
Stabilität | Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. |
Kennzeichnung gefährlicher | Xi |
R-Sätze: | 36/37/38 |
S-Sätze: | 26-36 |
WGK Germany | 3 |
RTECS-Nr. | HA2285000 |
F | 3-10-23 |
TSCA | Yes |
HS Code | 29309013 |
L-Cysteine hydrochloride monohydrate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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