21. Trigonal and hexagonal crystals revealed that trimers are arranged on a honeycomb lattice. 22. The trimer is now being tested to determine if it is a human carcinogen. 23. It also reacts with itself to form a trimer or higher molecular weight polymers. 24. It is structurally related to the ( ??? ) 3 trimer of bacterial ureases. 25. Mammalian arginase is active as a trimer , but some bacterial arginases are hexameric. 26. The topology of this trimer active site is identical to that of chloramphenicol acetyltransferase. 27. The trimer is stabilized primarily through hydrophobic interactions. 28. Porphyrin trimer catalyst developed by Jeremy Sanders for exo selective Diels-Alder reactions. 29. Above-20 �C, thioacetone readily converts to a polymer and a trimer . 30. The gelling ability of oat ?-glucan correlates to the percentage of trimers .
