Oxygenate Stock Solution 1 without ETBE 2000µg/mL each in isooctane ETBE 2151.5 MTBE (methyl-tert-butyl ether) 2143.6 DIPE (Diisopropyl ether) 2142.6 TAME (tert-Amyl methyl ether) 1379.1Methanol 1320.4 Isopropanol 1375.3 n-Propanol 1377.4