Online Encyclopedia

Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.

BERBERINE, CBH17NO4

Online Encyclopedia

Originally appearing in Volume V03, Page 764 of the 1911 Encyclopedia Britannica.

» Make a correction to this article.
» Add information or comments to this article.

Encyclopedia Home :: BEC-BER

Spread the word:

del.icio.us it!

See also:

BERBERINE, CBH17NO4

BERBERINE, CBH17NO4 , an See also:

ALKALOID

alkaloid occurring together with the alkaloids oxyacanthine C16H19NO3, berbamine C13H19NO3, See also:

HYDRASTINE

hydrastine C21H21N06, and canadine C20H21NO4, in Berberis vulgaris; it also occurs in other See also:

PLANTS

plants, Berberis aristata, B. aquifolium, Hydrastis canadensis, &c. It is a yellow, crystalline solid, insoluble in See also:

ETHER, (C2H5)2O

ether and See also:

CHLOROFORM (trichlor-methane), CHC13

chloroform, soluble in 41 parts of See also:

WATER

water at 2 1°, and moderately soluble in See also:

ALCOHOL

alcohol. It is a monacid See also:

BASE

base; the hydrochloride, C2BH17NO4•HCI, is insoluble in See also:

COLD (in O. Eng. cald and ceald, a word coming ultimately from a root cognate with the Lat. gelu, gelidus, and common in the Teutonic languages, which usually have two distinct forms for the substantive and the adjective, cf. Ger. Kolte, kalt, Dutch koude

cold alcohol, ether and chloroform, and soluble in 500 parts of water; the See also:

ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid sulphate, C20H17N04•112SO4, dissolves in about See also:

LOO (formerly called " Lanterloo," Fr. lanturlu, the refrain of a popular 17th-century song)

loo parts of water. Canadine is a tetrahydroberberine. Its constitution was worked out by W. H. See also:

PERKIN, SIR WILLIAM HENRY (1838-1907)

Perkin (J.C.S., 1889, 55, p. 63; 189o, 57, p. 991). This followed from a study of the decomposition products, there being obtained hemipinic acid (CH3O)2C6H2(000H)2, and a substance which proved to be to- amino -See also:

ETHYL

ethyl- piperonyl carboxylic acid, CH2O2:C6H2•COOH•CH2•CH2NH2. His See also:

formula was modified by Gadamer (Abs. J.C.S., 1902, I, p.

555), who made the See also:

FREE

free base an aldehyde, but the salts of an iso-quinolinium type. This formula, which necessitates the presence of two See also:

ASYMMETRIC

asymmetric See also:

CARBON (symbol C, atomic weight 12)

carbon atoms in an alkyl tetrahydroberberine, has been accepted by M. See also:

FREUND, WILHELM (1806—1894)

Freund and F. See also:

Mayer (Abs. J.C.S., 1907, I, p. 632), who showed that two racemic propyl tetrahydroberberines are produced when propyl dihydroberberine is reduced.

End of Article: BERBERINE, CBH17NO4

Additional information and Comments

There are no comments yet for this article.

» Add information or comments to this article.

Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.

Site content, images, and layout Copyright © 2006 - Net Industries, worldwide.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.

Links to articles and home page are always encouraged.

[back]
BERBERA

[next]
BERBERS