856 Wisconsin Academy of Sciences, Arts, and Letters. 
confirmed by his final synthesis 5 of morin from hydroxy-2'- tet- 
ramethoxy-4, 5, 2', 4' -chalkon in 1906. 
Morin occurs in fustic wood, Morns tinctorial the wood of 
chloropJiora tinctorial and of Artocarpus integrifolia, 2 and 
maclura tinctorial 
Morin crystallizes in long needle like crystals which are very 
slightly soluble in water, easily soluble in alcohol and less easily 
soluble in ether. It is not at all soluble in carbon disulphide, 
but soluble in alkalies with a yellow color. In alcoholic solu¬ 
tions it gives an olive green color with ferric chloride. It re¬ 
duces an ammoniacal silver solution in the cold, Fehling’s so¬ 
lution when warm. Treated with potassium salts a yellow pre¬ 
cipitate is obtained which corresponds to the formula C 15 H 9 0 7 K. 
With sodium acetate the corresponding sodium salt is obtained. 
Fused with alkalies morin yields phloroglucine and /?- resorcyclic 
acid. To wools mordanted with aluminum morin imparts a 
yellowish olive color; with chromium, a deep brown; with tin, 
a bright yellow; and with iron, a dark olive brown color. 
Besides those mentioned above, morin has been prepared and 
studied by the following chemists: 
Wagner, — Jr. f. prakt. Chem., 50, p. 182. 
Hlasiwetz and Pfaundler, — Ann., 127, p. 351. 
Loewe, — Zeit, anal. Chem., 14, p. 119. 
Benedikt, — B., 8, p. 606. 
Benedikt and Hazura, —■ Monatsh., 5, p. 167. 
Perkin, —Jr. Chem. Soc. 67, p. 649; 69, p. 792; 75, p. 433. 
Herzig, — Monatsh., 18, p. 702. 
Hexhydroxy flavones. 
Myricetin, — Hexhydroxy-1, 3, 3', 4', 5', a-flavone, or, 
P entity dr oxy-1 , 3, 3’, 4', 5' - flavonol . 
Myricetin was first isolated by Perkin, 1 in 1896, from Myrica 
nagi, an Indian dye stuff, and named by him from its source. 
• Ber., 39, p. 81; 95, 627. 
