| http://www.w3.org/ns/prov#value | - In these formulae, R11 and R12 each are a hydrogen atom or a normal, branched or cyclic alkyl group of 1 to 8 carbon atoms, or R11 and R12, taken together, may form a ring, with the proviso that each of R11 and R12 is a normal or branched alkyl-one group of 1 to 8 carbon atoms when they form a ring.
|
