the most abundantly occurring phenol compounds ( phenol , cresols , 2,4-dimethylphenol , brenzcatechine , syringol , eugenol , vanilline and guaiacol ) gave negative results when they were tested for mutagenicity at five concentrations up to 5000 micrograms/plate , with and without s-9 mix , using five strains of s. typhimurium .
C0031428
phenol
C0010305
cresols