Butyl-chloral Hydrate

(B. P.), croton-chloral, C4H5C130,- H20, a solid occurring in crystalline scales, resembling chloral hydrate, but made with butyl, C+H9, as a base, instead of ethyl, C2H5. Its properties are parallel to those of chloral, but are much feebler. Dose gr. vxx (0.32-1.3), in syrup. Syrupus Butyl chloral, strength 1-30. Dose f^j-iv (4.0- 16.0). Unof. C. Hydrate, a colorle , crystalline solid having the composition C2- HC13(H0)2, the hydrate of chloral. It is a powerful hypnotic, antispasmodic, and depre ant to the cerebral, medullary, and spinal centers, and, to a limited extent, is an anesthetic. It is serviceable in fevers accompanied by cerebral excitement, in chorea, convulsions, and in delirium tremens, but should be used with great caution. Dose gr. v-xx (0.32-1.3). C, ch207.xhtml s 187