L(-)-Tryptophan 99%
Supplier: Thermo Fisher Scientific
Certificates
About this item
CAS Number:73-22-3
:
Formula:C₁₁H₁₂N₂O₂
MDL Number:MFCD00064340
:204.23 g/mol
Merck Index:12,09929
Melting Pt:280…285 °C (dec.)
Density:1,34 g/cm³ (20 °C)
Storage Temperature:Ambient
EINECS:200-795-6
Specification Test Results
- Appearance:White to yellowish-white Crystalline powder
- Infrared spectrum:Conforms
- Loss on drying:≤0.5 % (1 g, 105°C)
- Specific optical rotation:-29.0° to -33.0° (20°C, 589 nm) (C=1, H2O)
- Titration with HClO4:98.5 to 101.5 % (On dry substance)