| http://www.w3.org/ns/prov#value | - The alkyl chain is connected at one end to the B ring of a naphthoquinone molecule and requires a leaving group R4 on the same carbon that connects to ring B. Thus, X has the following generalized formula: ##STR3## In which n is a positive integer and R4 may include one of the leaving groups, such as Cl, Br, F, I, OCOR, OH, OSO2 CH3, OSO2 C6 H4 CH3 -p, OR, OCONHR, and OCONHCH2 CH2 R. In all of the
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