L-Tryptophan

White or yellow slightly crystalline powder

<0.05%

<0.30%

5.5~7.0

-29.4~-32.8°

<0.03%

<0.003%

<0.10%

<15ppm

98.5~101.5%

in chloroform

289 c (dec.)

wh. cryst. or cryst. odorless powd., sl. bitter taste

204.23

4 gl in water