L-Tryptophan
Bezeichnung:L-Tryptophan
CAS-Nr73-22-3
Englisch Name:L-Tryptophan
CBNumberCB3750054
SummenformelC11H12N2O2
Molgewicht204.23
MOL-Datei73-22-3.mol
Synonyma
L-Tryptophan
L-Tryptophan physikalisch-chemischer Eigenschaften
Schmelzpunkt | 289-290 °C (dec.)(lit.) |
alpha | -31.1 º (c=1, H20) |
Siedepunkt | 342.72°C (rough estimate) |
Dichte | 1.34 |
Brechungsindex | -32 ° (C=1, H2O) |
storage temp. | 2-8°C |
Löslichkeit | 20% NH3: 0.1 g/mL at 20 °C, clear, colorless |
Aggregatzustand | powder |
pka | 2.46(at 25℃) |
Farbe | White to yellow-white |
PH | 5.5-7.0 (10g/l, H2O, 20℃) |
Geruch (Odor) | wh. cryst. or cryst. odorless powd., sl. bitter taste |
Optische Aktivität | [α]20/D 31.5±1°, c = 1% in H2O |
Wasserlöslichkeit | 11.4 g/L (25 ºC) |
Merck | 14,9797 |
BRN | 86197 |
Stabilität | Stable. Incompatible with strong acids, strong oxidizing agents. |
InChIKey | QIVBCDIJIAJPQS-VIFPVBQESA-N |
Kennzeichnung gefährlicher | Xi |
R-Sätze: | 33-40-62-41-37/38-36/37/38-22 |
S-Sätze: | 24/25-36/37/39-36-26 |
WGK Germany | 2 |
RTECS-Nr. | YN6130000 |
F | 8 |
TSCA | Yes |
HS Code | 29339990 |
Giftige Stoffe Daten | 73-22-3(Hazardous Substances Data) |
Toxizität | LD508mmol / kg (rat, intraperitoneal injection). It is safe when used in food (FDA, §172.320, 2000). |
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