THYMOL

n. Tim'o2!. Lat.. thymolum, acidum thymicum. Fr.,t. Ger.r. Propyl methylphenol, CJOH I4O = C,H S(CH7 KCHS )- OH. structurally probably C6(H,H,CHs.H,OH,CH2.CH,i.CH3). It is isomeric with carvacrol, and is derived from oil of thyme, though most of the t. of commerce is said to be obtained from the fruit of Carum ajowan. It forms colorle hexagonal crystals of aromatic odor and pungent taste, soluble with great difficulty in water (in from 1,200 to 900 parts), readily soluble in alcohol, in ether, and in chloroform. It melts at 50 C.. and after fusion frequently remains liquid even when cooled considerably below this point. Like carbolic acid, it forms compounds with metallic bases, called thymates. It po e es marked antiseptic properties, and is used in medicine both internally and locally. [B. 3 (a, 38); B, 4, 5.] T'- quecksilber (Ger.). An unstable substance. C10H 13HgOH, occurring as a blue-green precipitate. Recommended by Nei er in syphilis. [B, 270 (a, 38).] See MERCURY thymol ate. [s. 622]