simple phenols ( catechol , 4-methyl catechol , resorcinol , phloroglucinol and pyrogallol ) , phenolic acids ( p-hydroxybenzoic acid , protocatechuic acid , vanillic acid , gallic acid , syringic acid and salicylic acid ) , a phenylacetic acid ( 3,4-dihydroxyphenylacetic acid ) and eugenol were assayed for clastogenic activity in chinese hamster ovary ( cho ) cells with and without the addition of a n s9 mixture , cu2+ ( 10-4m ) and mn2+ ( 10-4m ) .
C0031428
phenols
C0031566
phloroglucinol