Very old tree. The seeds contain N-Acetylglucosamine - a binding lectin. The tree is known to be toxic to livestock. Paniculoid 13, strychnine and possibly cystine have been isolated from the seeds of Koelreuteria paniculata. In Chinese history, Koelreuteria paniculata was one of the five official trees which could be planted as a memorial by a tomb.
That's all I can find in regards to alkaloids. I'd be really surprised if there was any related info regarding entheogenic value, considering the extremely toxic alkaloids.
http://pubs.acs.org/doi/abs/10.1021/jf034013i --
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Skip the manual, now, where's the master switch?
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