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Related article: other results obtained, the formation of chlorophyll continues in the pres-
ence of the vapor of formaldehyde or chloroform. Pharm. Journ. and
Pharmacist, Dec. 25, 1909, 795 ; from Bull, du Jardin Imper. Botanique,
St. Petersburg, ix, Part v.
Chlorophyll Comparative Examination in Different Plants, Richard
Willstatter, F. Hocheder and E. Hug have made a series of comparative
examinations of the chlorophyll in different plants. The method adopted
is based on the separation of the pure chlorophyll in the form of its hy-
drolyiic product, as completely as possible, and its subsequent quantita-
tive saponification, leading thus to the phyto-number, indicating the per-
Digitized by VjOOQIC"
384 REPORT ON THE PROGRESS OF PHARMACY.
centage of phytol in the phseophytin. This phyto-number was determiDed
by the authors in 70 species embraced by 36 families, and proved the
extraordinary distribution of phytol the uncrystallizable chlorophyll in
plants, the presence of crystal lizable chlorophyll having been determined
only in five of the plants under examination. Regarding the
Reduction of Chlorophyll by Alkalies^ the authors find that the first
product resulting from the alcoholic saponification to be chlorophyllin ;
this is then converted into the blue glaucophyllin, then into rhodophylhn
and, finally, into two other red compounds, which the authors name re-
spectively pyrophyllin and phyllophyllin. The nature of all of these com-
pounds is comprehensively described and their probable Buy Lamictal chemical formulas
are suggested. Pharra. Ztg., Iv (1910), No. 20, 204; from Chem. Ztg.,
1910, No. 13.
Coloring Matter of Cotton Flowers Glycoside Nature and Descrip-
tion. According to A. G. Buy Lamictal Perkin, the alcoholic extract of Egyptian cot-
ton blossoms deposits during evaporation an orange-brown precipitate of
glucosidal nature. The aqueous solution of this precipitate produces with
lead acetate a red precipitate, which when decomposed by hydrogen sul-
phide and treated with hot water yields a yellow crystalline powder con-
sisting of a mixture of two glucosidal bodies, one of them a new glucoside
of the formula CaiHjoOi,, which the author has named
Quercimeritin. This forms yellow tabular crystals which are fairly
soluble in Buy Lamictal hot water, but insoluble in cold water. It imparts to wool pre-
pared with a suitable Buy Lamictal mordant a series of color tints, almost identical with
those obtainable with quercetin and is thereby distinguished from both
quercitrin and rutin. The second glucoside obtained from the crystalline
mixture has been named Buy Lamictal
Gossypetrin, It has the composition CjjHaoOu, and occurs in form of
pale orange-yellow needles. Pharm. Ztg,, Iv (1910), No. 30, 304,; from
N. Chem. Zentrabl., 19 10, No. 8.
Kaempherol A Hydrolytic Product of Robinin, N. Waliaschkho has
made a comprehensive investigation of the glucoside robinin prepared
from the flowers of Robinia pseudacacia. He has determined the formula
CjsH^oOis for the pure, carefully dried substance, and that by the action of
mineral acids on its aqueous solutions robinin is hydrolyzed Buy Lamictal with forma-
tion of I mol. galactose, 2 mol. rhamnose and i mol. of a yellow coloring
matter, according to the equation : CjsHioO,, -h 3HjO

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