«BRAZILEIN»に関連する英語の本
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1
The Complete book on Natural Dyes & Pigments
BRAZILEIN (LXXIX, R - H) Mild oxidation of brazilin results in the formation of
brazilein, C16H12O5, which on methylation gives two substances,
trimethylbrazilein, C19H18O5,and tetramethyldihydrobrazileinol, C20H22O6.
Trimethylbrazilein ...
NIIR Board of Consultants & Engineers, 2005
2
A dictionary of chemistry and the allied branches of other ...
369), the red colouring matter, Brazilein, consisting of C18Hl40T, is formed by
oxidation from a colourless principle, Brazilin, C1BHM0", contained in the wood,
so that Preisser' s brazilein is the same as Chevreul's brazil in. Preisser prepares
...
Brazilein BRAZILEIN Red Generic compound Brazilein, a neoflavanoid, is the
principal colouring matter in the red dye derived from Caesalpinia species (C.
echinata Lam., 'Brazilwood', and C. sappan L., 'sappan-wood'). It develops in the
...
Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, 2008
4
Pigment Compendium: A Dictionary and Optical Microscopy of ...
Brazilein BRAZILEIN Red Generic compound Brazilein, a neoflavanoid, is the
principal colouring matter in the red dye derived from Caesalpinia species (C.
echinata Lam., 'Brazilwood', and C. sappan L., 'sappan-wood'). It develops in the
...
Valentine Walsh, Tracey Chaplin, 2008
5
Pigment Compendium: A Dictionary of Historical Pigments
Brazilein BRAZILEIN Red Generic compound Brazilein, a neoflavanoid, is the
principal colouring matter in the red dye derived from Caesalpinia species (C.
echinata Lam., 'Brazilwood', and C. sappan L., 'sappan-wood'). It develops in the
...
Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, 2007
6
Handbook of Natural Colorants
1.2.3 Flavylium/Anthocyanin Reds Figure 1.3 Brazilein; haematein is 8-hydroxy
brazilein Anthocyanins are ubiquitous water-soluble colorants responsible for the
impressive red and blue colours of flowers and fruits (Figure 1.4). Natural ...
Thomas Bechtold, Rita Mussak, 2009
7
The collected works of Sir Humphry Davy ...: Discourses ...
Pure brazilein was first prepared by J. J. Hummel and A. G. Perkin (Trans., 1882,
41, 373) by passing air through a solution of brazilin in dilute ammonia, and was
thus obtained in minute dark crystals having a grey metallic lustre and dissolving
...
Chemical Society (Great Britain), Sir Humphry Davy, John Davy, 1908
8
Journal of the Chemical Society
10. The Constitution of Brazilein. By V. M. Micovic and Robert Robinson. The
methylation of brazilein by means of methyl sulphate and potassium hydroxide
affords trimethylbrazilein, tetramethyldihydrobrazileinol and a dimethylbrazilein
which ...
brazilein are considered to form an intramolecular hydrogen bond (3 in Fig. 2) or
dimer structure with two intermolecular hydyrogen bonds (4 in Fig.2). These
hydrogen bonds should make the absorption peaks due to stretcing vibrations of
...
10
Comprehensive Natural Products II: Chemistry and Biology: 10 ...
Examples of pigments Unknown Brazilin(82),311 Brazilein (83)312 Brazilin (82),
brazilein (83)312 Zeyloxanthonone (84) with palmitic acid326 Tabebuia
chrysantha (Bignoniaceae) Tecomella undulata (Bignoniaceae) Tectona grandis
...
