-ine

Suffix used in chemistry -ine is a suffix used in chemistry to denote two kinds of substance. The first is a chemically basic and alkaloidal substance. It was proposed by Joseph Louis Gay-Lussac in an editorial accompanying a paper by Friedrich Sertürner describing the isolation of the alkaloid "morphium", which was subsequently renamed to "morphine".Sneader W. (2005). Drug Discovery: A History, pp. 90-91. Wiley. Examples include quinine, morphine and guanidine.http://cancerweb.ncl.ac.uk/cgi-bin/omd?-ine Definition -ine 2008-03-29 Centre for Cancer Education https://www.webcitation.org/5io4pObGd?url=http://cancerweb.ncl.ac.uk/cgi-bin/omd?-ine 2009-08-05 dead The second usage is to denote a hydrocarbon of the second degree of unsaturation. Examples include hexine and heptine. With simple hydrocarbons, this usage is identical to the IUPAC suffix -yne. A third usage is used for pnictogen hydrides e.g. phosphine, arsine etc. In common and literary adjectives (e.g. asinine, canine, feline, ursine), the suffix is usually pronounced aɪ n or in some words alternatively ɪ n. For demonyms (e.g. Levantine, Byzantine, Argentine) it is usually aɪ n or iː n. But in chemistry, it is usually pronounced iː n or ɪ n depending on the word it appears in and the accent of the speaker. In a few words (for example, quinine, iodine and strychnine), the aɪ n sound is normal in some accents. Gasoline ends with iː n; glycerine more often with ɪ n than with iː n. In caffeine, the suffix has merged with the e in the root, for stressed ' iː n; in gasoline and margarine as well the suffix is stressed by some people. Some elements of the periodic table (namely the halogens, in the Group 17) have this suffix: fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), ending which was continued in the artificially created tennessine (Ts). The suffix -in (ɪ n) is etymologically related and overlaps in usage with -ine. Many proteins and lipids have names ending with -in: for example, the enzymes pepsin and trypsin, the hormones insulin and gastrin, and the lipids stearin (stearine) and olein. References ine Category:English suffixes