0 2910.90 Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. oxirane ‘ethylene oxide’, methyloxirane ‘propylene oxide’ and 1-chloro- 2,3 -epoxypropane ‘epichorohydrin’) 5 4 3 2