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  • compounds with the same chemical
  • The experimental work on the hydrolysis of 1,1-dichloroethane, which yielded glycol, and the chlorination of acetaldehyde giving 1,2-dichloroethane provided a good starting point for the development of the theory of the constitution of compounds with the same chemical formula, but different bond structure. (wikipedia.org)
  • cobalt
  • He showed, among other things, that the formulas of many cobalt(III) and chromium(III) compounds can be understood if the metal has six ligands in an octahedral geometry. (wikipedia.org)
  • absolute
  • It is not to be confused with E - Z isomerism , which is an absolute stereochemical description, and only to be used with alkenes. (wikipedia.org)
  • exhibit
  • The halogenated alkylamine antihistamines all exhibit optical isomerism, and chlorphenamine in the indicated products is racemic chlorphenamine maleate, whereas dexchlorphenamine is the dextrorotary stereoisomer. (wikipedia.org)
  • time
  • This combination is manufactured as a time-released formula, which allows for administration every 12 hours, versus the more common 4-to-6-hour regimen for other narcotic cough suppressants. (wikipedia.org)
  • With no known case of plato-tetrammine isomerism at the time, this prompted extensive discussion in the literature of the true nature and properties of Wolffram's Red Salt. (wikipedia.org)
  • commonly
  • However, some biological substances commonly called "monosaccharides" do not conform to this formula (e.g., uronic acids and deoxy-sugars such as fucose ) and there are many chemicals that do conform to this formula but are not considered to be monosaccharides (e.g., formaldehyde CH 2 O and inositol (CH 2 O) 6 ). (omicsgroup.org)