Page 196 - Phytochemistry 2 (06-PG 605)

General contraindications for PUVA therapy include
pregnancy, and a history of skin cancer and
photosensitivity

Identification Tests :

Xanthotoxin:

1- It does not reduce ammonical silver nitrate or Fehling
solution

2-It gives a precipitate with Wagner's reagent

Imperatorin:

1-It reduces ammoniacal silver nitrate and

Fehling'ssolution.

2- It does not give precipitate with Wagner's reagent.