ˈroseine Chem.
Also rosein.
[f. L. rose-us + -ine5, -in1.]
One of the red salts derived from rosaniline; spec. acetate of rosaniline.
| 1862 Hofmann in Proc. Roy. Soc. XII. 5 Mr. Nicholson designates the pure base of the red colouring matter by the name of Roseine. 1862 Miller Elem. Chem., Org. (ed. 2) 449 When treated with peroxide of lead and sulphuric acid, aniline furnishes a delicate rose colour, which Dr. D. Price has called roseine. 1883 Science II. 143/2 Indigo, carmine, and roseine, mixed so as to produce the same tint. |