Present name. - Narcotine. C22H13No7.

May be obtained from the operative chemists.

Characters and Tests. - Brilliant right rhombic prisms, or acicular groups, tasteless, scarcely soluble in water, but freely so in alcohol, and still more so in ether, from the latter of which the crystals are obtained by evaporation. Dissolved in Hydrochloric Acid, it gives a precipitate with Caustic Potash, which is not re-dissolved by an excess of the precipitant. The same solution neutralized with a saturated solution of Bi-car-bonate of Soda, stirred briskly with a glass rod and set aside, yields a precipitate. If some strong chlorine water is first added and then an excess of Ammonia, an orange-red colour is produced.

Reference to Horn. Proving. - A very short notice by Noack and Trinks.

Preparations. - Trituration. Solution in rectified spirit