====== ChemAxon Tautomers calculator ====== {{:tau.png?800|}} Number of tautomers at the given pH ==== Options ==== == Dominant tautomers == Takes dominant tautomers only == Rational tautomers == Takes rational tautomers only. Only effective when Dominant tautomers are selected. == pH == Considers pH effect at the given pH (blank: doesn’t consider pH effect) == Path length == Maximum allowed length of the tautomerization path in chemical bonds == Protect aromaticity == Calculated number of tautomers by retaining input aromatic system == Protect charge == Calculated number of tautomers by retaining input charges == Protect double bond stereo == Calculated number of tautomers by retaining input double bond stereo configurations == Protect all tetrahedral centers == Generate tautomers by retaining all input tetrahedral configurations == Protect labeled tetrahedral centers == Generate tautomers by retaining labeled input tetrahedral configurations == Protect ester groups == Generate tautomers by retaining ester groups == Exclude antiaromatic compounds == Generate tautomers by excluding antiaromatic compounds == Filter out symmetrical structures == Generate tautomers by filtering out symmetrical structures