Ethanesulfonic acid The drug is used in form of its salt with ethanesulfonic acid. This salt,<unk>  esilate, is a yellow, crystalline solid that melts at to . It has poor solubility in water, and somewhat better solubility in dimethyl sulfoxide at 25 g/l.
Nintedanib
Vatalanib
Gilteritinib
Abrocitinib
Pegaptanib
Tivozanib
Alectinib
Sunitinib