(Science: chemistry) Are organic compounds that have the same som formula, meaning the same number of carbons, hydrogens or other type ot atoms. They differ from each other in the way the atoms are connected. Examples are n-butane and 2-methylpropane or ethanol and dimethylether.
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... while being lethal to both bacterial classes, also produced gross structural damage in the Gram-negative E. coli while none was observed in ... certain other C9-C12 fractions (i.e., n-propylbenzene, trimethylbenzene isomers). While hydrocarbon fuel exposures occur typically at concentrations ...
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