As Science notes, propylene oxide isn't an organic molecule;
WHAAAAT?
It is not life related, but it is organic all right - chemistry of the hydrocarbon compounds has always been called organic chemistry. We studied it as a part of the organic chemistry course, the part dealing with radical polymerization reaction (*) Not as much fun as peroxide radical reactions, but fun none the less.
*Did this trigger the POLICE ATTENTION - radical mentioned, report to thought police dragnet? I bet it did. Such is life when weapons of mass instruction are loaded into your brain. If that did not, peroxides definitely did