Fixed or trapped in place
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1,2-Ethanedione
(R)-ibuprofen isobutyl ester
1-(4-BROMO-PHENYL)-4-PHENYL-PIPERAZINE
Diphenyl<3-(trifluormethyl)phenyl>phosphan
Ethyl (2S,3S)-3-chloro-2-hydroxy-4-phenylbutanoate
