cas 34730-78-4, SCUTELLAREIN TETRAMETHYLETHER(RG)

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A novel monitoring approach for mammalian lignan precursors in flaxseed
The mammalian lignans enterolactone and enterodiol have gained reputation as cancer-protective agents. These substances are produced in man by a gut microfloral-promoted transformation of opportune plant lignan precursors such as secoisolariciresinol diglucoside (3). This lignan is largely contained in flaxseed in the form of a more complex glucoside of still undisclosed structure and thus unsuitable for direct quantitative procedures. Since flaxseed-supplemented diets are usually employed to investigate the cancer-protective effect of a high mammalian lignan producing diet, a rapid and reliable analytical method for assaying 3 yield in flaxseed would be highly desirable. Acid hydrolysis of defatted flaxseed gives rise to 3,4-bis[(3-methoxy-4-hydroxy-phenyl)meth tetrahydrofuran (5), a degradation product readily amenable to gas chromatography resulting from the quantitative secoisolariciresinol-carrying complex glucoside cleavage. A gas chromatography-based internal standard method was then set up to derive the true content of 3 from the quantitative determination of the hydrolysis product 5. The method can reliably quantitate 5 with good linearity, accuracy and precision.
Coran,Giannellini,Bambagiotti-Alberti
p. 529 - 532
(2007/10/03)

LIGNAN FROM CALYCES OF DIOSPYROS KAKI
Key Word Index - Diospyros kaki; Ebenaceae; calyx; (-)-divanillyltetrahydrofuran ferulate. - From Diospyros kaki calyces, a new lignan was isolated.Its structure was elucidated as (-)-divanyllyltetrahydrofuran ferulate by spectroscopic methods and was established by total synthesis.
Matsuura, Shin,Iinuma, Munekazu
p. 626 - 628
(2007/10/02)

Chemical Properties

Melting Point: 116-117℃
Boiling Point: 527.8 °C at 760 mmHg
Flash Point:273 °C
Density: 1.224 g/cm³
PKA: 9.80±0.20(Predicted)
PSA: 68.15000
LogP: 3.16280

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Chemical Properties

Melting Point: 116-117℃

Boiling Point: 527.8 °C at 760 mmHg

Flash Point:273 °C

Density: 1.224 g/cm³

PKA: 9.80±0.20(Predicted)

PSA: 68.15000

LogP: 3.16280

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34730-78-4

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Chemical Properties

Melting Point: 116-117℃

Boiling Point: 527.8 °C at 760 mmHg

Flash Point:273 °C

Density: 1.224 g/cm3

PKA: 9.80±0.20(Predicted)

PSA: 68.15000

LogP: 3.16280

Global suppliers and manufacturers of 34730-78-4total 50 suppliers on LookChem

Density: 1.224 g/cm³