But-
Encyclopedia
but- is a chemical prefix. It was extracted from "butyric acid
". It serves as the number 4 when counting axial atoms in forming names of organic compounds. As an example, butane
is an alkane
with four carbons.
Butyric acid
Butyric acid , also known under the systematic name butanoic acid, is a carboxylic acid with the structural formula CH3CH2CH2-COOH. Salts and esters of butyric acid are known as butyrates or butanoates...
". It serves as the number 4 when counting axial atoms in forming names of organic compounds. As an example, butane
Butane
Butane is a gas with the formula C4H10 that is an alkane with four carbon atoms. The term may refer to any of two structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, butane refers only to the unbranched n-butane isomer; the other one being called "methylpropane" or...
is an alkane
Alkane
Alkanes are chemical compounds that consist only of hydrogen and carbon atoms and are bonded exclusively by single bonds without any cycles...
with four carbons.