The Encyclopedia Americana (1906)/Munjistin
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Munjistin, an orange coloring matter, closely allied to purpurin and to alizarin, which occurs in munjeet (East Indian madder), and has the fornmla C14H5(OH)2O2COOH. It dissolves in boiling alcohol, separating again, upon cooling, in the form of brilliant golden plates. Munjistin gives an orange yellow color when used as a dye with aluminum mordants, and with iron mordants it gives a brownish purple, its colors being fairly permanent