Two new chromenes, myriachromene and 2,2-dimethyl-6,7-methylenedioxy-2H-chromene, together with ten known compounds including alpha-tocopherylquinone, alpha-tocopherol acetate, diphenyl sulfone, beta-carotene, chondrillasterol, beta-sitosterol, beta-sitostenone, vanillin, and vanillic acid were