Chem. Also sulf-. [ad. G. sulfonal (Berichte der chem. Gesellsch., 1886, p. 2806), f. sulfon SULPHONE.] Diethyl-sulphonedimethyl-methane, a white crystalline substance, used as a hypnotic.
1889. Pall Mall Gaz., 26 April, 2/3. Sulfonal is a hypnotic, which is free from the incalculable dangers of the narcotic remedies such as the opiates and chloral. It is obtained from the combination of ethyl mercaptan and acetone by the process of oxidation.
1890. Daily News, 16 Dec., 3/5. [A doctor] deposed that he saw deceased at that place, when he said he had been taking sulphonal.
attrib. 1892. Zangwill, Bow Mystery, 175. I pocketed the razor and the empty sulfonal phial.
1898. Allbutts Syst. Med., V. 454. Some.fatal cases of sulphonal poisoning.