L-Tryptophan

Product Details

CasNo： 73-22-3

Molecular Formula： C11H12N2O2

Appearance： White to yellow-white powder

Delivery Time： large stock

Throughput： 100|Kilogram|Month

Purity： 99% purity

L-Tryptophan Chemical Properties
Melting point     289-290 °C (dec.)(lit.)
alpha     -31.1 º (c=1, H20)
Boiling point     342.72°C (rough estimate)
density     1.34
refractive index     -32 ° (C=1, H2O)
storage temp.     Store at RT.
solubility     20% NH3: 0.1 g/mL at 20 °C, clear, colorless
pka    2.46(at 25℃)
form     powder
color     White to yellow-white
PH    5.5-7.0 (10g/l, H2O, 20℃)
optical activity    [α]20/D 31.5±1°, c = 1% in H2O
Water Solubility     11.4 g/L (25 ºC)
Merck     14,9797
BRN     86197
Stability:    Stable. Incompatible with strong acids, strong oxidizing agents.
InChIKey    QIVBCDIJIAJPQS-VIFPVBQESA-N
CAS DataBase Reference    73-22-3(CAS DataBase Reference)
NIST Chemistry Reference    L-Tryptophan(73-22-3)
EPA Substance Registry System    L-Tryptophan (73-22-3)

Safety Information
Hazard Codes     Xi
Risk Statements     33-40-62-41-37/38-36/37/38-22
Safety Statements     24/25-36/37/39-36-26
WGK Germany     2
RTECS     YN6130000
F     8
TSCA     Yes
HS Code     29339990
Hazardous Substances Data    73-22-3(Hazardous Substances Data)
Toxicity    LD508mmol / kg (rat, intraperitoneal injection). It is safe when used in food (FDA, §172.320, 2000).