Keywords: Lehmtan1.png Algemeen schema Lehmsted-Tanasescu acridon synthese Eigen creatie nl wikipedia 2006-06-04 Sergei wikipedia nl Sergei original upload log page nl wikipedia Lehmtan1 png 2006-06-04 15 26 Sergei 1710×348×8 11559 bytes <nowiki>Algemeen schema Lehmsted-Tanasescu acridon synthese Eigen creatie</nowiki> Organic reactions |