Keywords: Wikipedia Takemoto2.png en wikipedia 2011 July 7 Takemoto bifunctional thiourea en wikipedia Ronhjones CommonsHelper 2007-05-23 Mike Kotke wikipedia en Mike Kotke Original upload log page en wikipedia Wikipedia_Takemoto2 png 2007-05-23 16 58 Mike Kotke 170×96× 1834 bytes <nowiki>Takemoto bifunctional thiourea</nowiki> Catalysis Carbamides |