I couldnt tell you what the chemicals were that will harm the o-rings, but as you said i haven't come across any lubes that have those chemicals in, but i would stay away from oil based lubes,
It should say on the tin/tube what you can and cant use it for anyway, just pop in and have a look at the labels but the worst that can happen is you'll have to buy some new o-rings, but i doubt that will hapen anyway
Again manufactures usually only recomed the things they say no matter what you buy from PC components to Cars, Markers absoloutly everything, its more to cover themselves then anything else anyway,
Its just they can say "well you didnt use the one we recomend" but there is nothing to say that the same problem wouldnt have happend if you did use the one they recomend.