Contractions. - Cinch-s. Cn-s.

Present name. - Cinchonia Sulphate. (C20H14N2O)2 H1So4,2H1O.

This is best obtained from the manufacturing chemists.

Characters and Tests. - White prismatic crystals, which fuse when heated, and yield a fine red colouring matter, and an aromatic odour. The solution gives a precipitate with Nitrate of Barium, and also with excess of Ammonia, which latter precipitate is not dissolved by Ether.

Preparation. - Solution in 20 O.P. spirit.

Reference to Horn. Proving. - Hyg., 16.

Proper forms for dispensing. - lx and upwards, Tincture, Pilules, or Globules.

Cinnabar. Vide Mercurius.