| 释义 |
theˈbaic, a.2 Pharm. Chem.
[f. as prec., in reference to the fact that Egypt was a chief source of the opium of commerce.]
Of or derived from opium; thebaic extract, thebaic tincture, laudanum.
1746H. Pemberton Dispensatory 153 Opium strained, otherwise called the Thebaic Extract. 1783W. Keir in Med. Commun. I. 129 An eighth part of thebaic tincture. 1797Encycl. Brit. (ed. 3) XIV. Pharmacy §558 Thebaic powder. Ibid. §604 Thebaic electuary.
So theˈbaïcine, Chem., a yellow amorphous alkaloid, described by Hesse 1870, formed by boiling thebaïne with concentrated hydrochloric acid; thebaïne |ˈθiːbeɪaɪn| [-ine5], a highly poisonous alkaloid, C19H21NO3, obtained in colourless leaflets or prisms from opium; formerly also called paramorphine and thebaia; also attrib.; thebaïsm |ˈθiːbeɪɪz(ə)m|, Path., the toxic action of thebaïne; ˈthebenine, Chem., an amorphous crystalline alkaloid, isomeric with thebaïne, from which it is formed by boiling with hydrochloric acid.
1875Watts Dict. Chem. VII. 1152 *Thebaïcine. 1894Muir & Morley Watts' Dict. Chem. IV. 681 Boiling [in] dilute H2SO converts it [Thebaïne] into thebenine and thebaïcine.
1835R. D. & T. Thomson's Rec. Gen. Sc. II. 381 Ammonia is next poured into the purified liquid, by which means, Morphine and *Thebaine are precipitated. 1868Watts Dict. Chem. V. 759 Thebaine-salts do not crystallise from aqueous solution. 1871Roscoe Elem. Chem. 429 It appears that thebaine is the most powerful of the alkaloids.
1875Watts Dict. Chem. VII. 1153 *Thebenine. |