Infobox references. Tryptophan (abbreviated as Trp or W; encoded by the codon UGG) is an Î±-amino acid that is used in the biosynthesis of proteins. It contains an Î±-amino group, an Î±-carboxylic acid group, and a side chain indole, classifying it as a non-polar, aromatic amino acid.
toluene is a common name-The IUPAC name for toluene is methylbenzene.he use of this trivial form (acetate for ethanoic acid in general) is so common that this is called a retained IUPAC name.
Step 1, Know why the rules exist. The IUPAC rules were created to phase out old names (such as toluene) and replace them with a system that would be consistent, as well as providing information about the placement of substituents (the atoms or molecules attached to a hydrocarbon chain).Step 2, Keep a list of prefixes on-hand. These prefixes will help you name your hydrocarbons. They're based on the number of carbons in the parent chain (not altogether). For instance, CH3-CH3 would be ...