. "\"The chemical reactions and pathways involving octamethylcyclotetrasiloxane, a cyclic silicone-oxygen ring compound with two methyl groups attached to each silicone atom.\" [GOC:ai, http://chemfinder.cambridgesoft.com/]" . . "octamethylcyclotetrasiloxane metabolic process" . "octamethylcyclotetrasiloxane metabolism" . . .