Glaucium vitellinum Boiss and Buhse. population Seerjan was shown to contain three major alkaloids, isocorydine (0.44%), protopine (0.42%), dicentrine (0.24%), and four minor alkaloids, tetrahydropalmatine (0.13%), muramine (0.12%), bulbocapnine (0.06%) and glaucine (0.01%). Glaucium pulchrum Stapf
Six isoquinoline alkaloids, glaucine, isocorydine, protopine, cryptopine, allocryptopine and trans-canadine methochloride, have been obtained from the aerial parts of Glaucium grandiflorum Boiss. et Huet var. torquatum Cullen, a plant indigenous to Turkey. The presence of a seventh alkaloid,