ACRIDINE

n, A*k‘ri*d-en. From acer, acrid, on account of its irritant action. Fr., acridine. Ger., Acridin. It.,Sp., acridin a. An artificial alkaloid first obtained from crude anthracene by Gräbe and Caro [** Ann. d. Chem. u. Pharm.,” clviii, p. 265], who a igned it the formula C,,H,N. More recent analyses give it the formula = = CysHpN = C,(H,H,H,H, CH,N,X, B,H,H,H)Ceoa ee colorle laminar crystals, soluble in alcohol and in ether, which cause marked irritation when brought into contact with the skin or a mucous surface. [B, 79.]—A. ethyl iodide. Ger., Acridindthyljodid. A derivative of a. having the formula C,3HyN.CaH,gl. [B, 79,]—A. octohydride. Ger., Acridinoctohydriir. A substance forming lamellar crystals of the molecular composition of a. with the addition of 8 atoms of hydrogen, C,,H,7N. ft 79.) rea (Ger.),n. ’zoi-re*. Acridic acid. It forms