<Ul> <Li> O = C1OC (c2ccccc12) (c3ccc (O) cc3) c4ccc (O) cc4 </Li> </Ul> <Li> O = C1OC (c2ccccc12) (c3ccc (O) cc3) c4ccc (O) cc4 </Li> <Tr> <Th_colspan="2"> Properties </Th> </Tr> <Tr> <Td> Chemical formula </Td> <Td> C H O </Td> </Tr>

Why is phenolphthalein usually used in titration experiments rather than bromothymol blue