cyclopentasiloxane (&) cyclohexasiloxane, Cas : 541-02-6 & 540-97-6, EC : 208-764-9 & 208-762-8, decamethylcyclopentasiloxane, pentoxapentasilecane, Decamethylcyclopentasiloxan, decamethylcyclopentasiloxane, D5. Octamethylcyclotetrasiloxane (D4); Decamethylcyclopentasiloxane (D5) ; Octamethylcyclotetrasiloxane (D4); Decamethylcyclopentasiloxane (D5); dodecamethylcyclohexasiloxane (D6)