2-Methyl-2-phenylpropanoic acid826-55-131 % similar N-Benzylacetamide588-46-530 % similar 3,3,3-Triphenylpropionic acid900-91-430 % similar 3-Benzyl-3-methylpentanoic acid53663-16-430 % similar Triphenylacetic acid595-91-530 % similar