Name

L-Tryptophan

CAS No.

73-22-3; 80206-30-0

EINECS NO.

200-795-6

Molecular formula

C₁₁H₁₂N₂O₂

Molecular weight

204.2252

Structural formula

Physical and Chemical Properties

density 1.34 
Melting point 280-285°C 
Specific Rotation -31.1° (c=1, H2O) 
water-soluble 11.4 g/L (25°C)