CS-1194 LDN-27219 (LDN 27219 184663 LDN-27219 2-[(3,4-Dihydro-4-oxo-3,5-diphenylthieno[2,3-d]pyrimidin-2-yl)thio]-acetic acid hydrazide 2-((4-oxo-3,5-diphenyl-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetohydrazide Acetic acid, 2-[(3,4-dihydro-4-oxo-3,5-diphenylthieno[2,3-d]pyrimidin-2-yl)thio]-, hydrazide LDN-27219 >=98% (HPLC)