Decision document for: 3,6-Diemthyl-4-octyn-3,6-diol - CAS No. 78-66-0 2,4,7,9-Tetramethyl-5-decyn-4,7-diol - CAS No. 126-86-3 You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more. Inert Reassessment Decision Document for 2,4,7,9-Tetramethyl-5-decyn-4,7-diol (PDF)(14 pp, 783 K)