Crystal data and molecular packing of drug charge-transfer complexes. I. Promethazine picrate

Crystal data for promethazine picrate (C₂₃H₂₃N₅O₇S) complex are: triclinic P1 or P, Z = 2, a = 18.49 (1), b = 7.77 (1), c = 7.79 (1) Å, α = 70.9 (2), β = 90.0 (2), γ=83.0 (2)°.