Unit 2, pharmacology, chemical test for different chemical constituents. 5th semester Chemical test of belladona, guggul, podophyllum, colophony, Myrrh, Resins, Benzoin, cardiac gylcoside, tannins, aloes chemical test, test for purine, saponin test, flavonoids chemical test, antraquinone chemical test, specific test for antraquinone glycosides test.