CAS 540-97-6 appears in our catalog under these names: Dodecamethylcyclohexasiloxane, Dodecamethylcyclohexasiloxane, >95% (GC), Dodecamethylcyclohexasiloxane, >97.0%(GC), 2,2,4,4,6,6,8,8,10,10,12,12-DODECAMETHYL, 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane, 98%, 98%. Offered by: Dr. Ehrenstorfer, TRC, GLPBio, Biosynth, TCI. Available pack sizes: 100mg, 1g, 250mg, 500mg, 25g, 5g, 10g, 1ml.