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4996-43-4

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4996-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4996-43-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,9 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4996-43:
(6*4)+(5*9)+(4*9)+(3*6)+(2*4)+(1*3)=134
134 % 10 = 4
So 4996-43-4 is a valid CAS Registry Number.

4996-43-4Relevant articles and documents

Syntheses of Isoflavones and Isoflavone Glycosides, and Their Inhibitory Activity against Bovine Liver &β-Galactosidase

Nishiyama, Kiyotoshi,Esaki, Sachiko,Deguchi, Ikuko,Sugiyama, Naoko,Kamiya, Shintaro

, p. 107 - 114 (2007/10/02)

To clarify the relationship between the structure and inhibitory action toward β-D-galactosidase (EC 3.2.1.21) of isoflavones and isoflavone glycosides, a number of polyhydroxyisoflavones, and the α-L-rhamnosides and β-L-quinovosides of daidzein and genistein were synthesized.Among the polyhydroxyisoflavones, 2',3',4',7-tetrahydroxyisoflavone showed the strongest inhibitory activity (Ki = 26 * 10-6 M).Among the glycosides, all the L-rhamnosides were strong inhibitors, of which genistein 4',7-di-O-α-L-rhamnoside was the strongest (Ki = 4.44 * 10-6 M), while all the isoflavone β-L-quinovosides were considerably weak or possessed no inhibition.

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