L-Alanine 99%
:56-41-7
:
:C₃H₇NO₂
:MFCD00064410
:89.09 g/mol
:13,00203
:189 °C (1013 hPa)
:314…316 °C (dec.)
:1,4 g/cm³ (20 °C)
:Ambient
:200-273-8
- Appearance:White to off-white Crystalline powder or crystals
- Infrared spectrum:Conforms
- Loss on drying:≤0.2 % (105°C, 3 h)
- Sulfated ash:≤0.1 %
- UV transmittance:≥95 % (c=10, H2O, 430 nm) 1 cm cell
- pH:5.5 to 7 (2.5 % at 25°C)
- Specific optical rotation:+13.5° to +15.5° (20°C, 589 nm) (c=10, 6 N HCl) (on dry substance)
- Titration with HClO4:98.5 to 101.5 % (on dry substance)
- Chloride (Cl):≤200 ppm
- Sulfate (SO4):≤300 ppm
- Ammonium (NH4):≤200 ppm
- Iron (Fe):≤10 ppm
- Heavy metals (as Pb):≤10 ppm
- Other amino acids:≤0.5 % (TLC)
- Pack typePk