2,6-Dichlorocpd. 1-1000 + 7000 + 800 2,4-Dichloro cpd. 1-1000 7 50 - 0 ... 0.1 g. dissolved in 1 ml. of 0.5 N alcoholic potassium hy- droxide plus 1 ml. of alcohol and diluted with distilled water. -, no growth; +, growth. Counts above 5,000 are estimated. While it has been previously observed* that p- chloro-alkylphenols show somewhat greater germi- cidal potency than their isomers with chlorine in the ortho and alkyl in the para position, the large difference in the ...