Claim: Siloxane had two cyclic siloxanes, one of which was hexamethylcyclotrisiloxane (a colorless or white volatile solid).
Evidence: D3: hexamethylcyclotrisiloxane D4: octamethylcyclotetrasiloxane D5: decamethylcyclopentasiloxane D6: dodecamethylcyclohexasiloxane