Wakeman—Pigments of Flowering Plants. 
847 
side in the blue flowers of Delphinium consolida 5 and Delphin¬ 
ium zali, Q as the glucoside in the white flowers of Rohinia pseud- 
acacia, 7 and, along with quercetin in the blossoms of prunus 
spinosa , 8 Alpina officinarum , 9 and Rumex eckonianus. 10 It has 
also been isolated from the indigo producing plants, 11 Poly¬ 
gonum tinctorium and Indigofera amicta, as the glucoside 
kaempheritrin. Scutellarein, 12 probably identical with kaem- 
pherol, is formed by the hydrolysis of the glucoside scutellarin 
which occurs in the epidermis of Scutellaria caleopsis, and 
Teucrium species. 
Kaempherol crystallizes in pale yellow crystals which melt 
at 276-277. It is readily soluble in boiling alcohol, and 
soluble in alkalies with a pale yellow color. Alcoholic lead 
acetate solutions yield an orange red precipitate with kaemph¬ 
erol; alcoholic ferric chloride a greenish black coloration. 
Kaempherol dissolves in concentrated sulphuric acid forming 
a yellow solution which in a short time gives a blue fluorescence. 
To wools mordanted with aluminum kaempherol imparts a yellow 
color; with tin, a yellow color; with chromium, a brownish red 
color; and with iron, a deep olive brown. 
Kampherid,—Trihydroxy—1, 3, a-methoxy-4'-flavone, or 
Dihydroxy-1, 3-methoxy-4 ' -flavonol. 
Kampherid, the 4' -methyl ether of kaempferol, was first ex¬ 
tracted by Brandes 1 in 1839 from the rhizom of Alpina offici¬ 
narum. Later, as has been shown in the chapter on galangin, 
5 Jr. Chem. Soc., 81, p. 585. - 
6 Jr. Chem. Soc., 73, p. 267. 
7 Proc. Chem. Soc., 20, p. 172. 
8 Ann. (Sup.) 1, p. 257. 
9 Arch. d. Pharm., 247, p. 447. 
10 Jr. Chem. Soc., 97, p„ 1. 
11 Jahresb. d. Chem., (1886) p. 573; Proc. Chem. Soc. 20, p. 172; 22, p. 198. 
12 :Euler, p. 105. 
1 Arch, der Pharm., 67, p. 52. 
