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.
TOLUENE (C7H8) Chemical Abstracts Service (CAS) Number: 108-88-3 General Information Toluene is a colorless, flammable, refractive liquid that is slightly soluble in water. Acute (short-term) exposure of humans to low or moderate levels of toluene can cause central nervous system