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20764-63-0

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20764-63-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20764-63-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,6 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20764-63:
(7*2)+(6*0)+(5*7)+(4*6)+(3*4)+(2*6)+(1*3)=100
100 % 10 = 0
So 20764-63-0 is a valid CAS Registry Number.

20764-63-0Relevant articles and documents

Synthesis of aryl glycosides as vir gene inducers of Agrobacterium tumefaciens

Delay,Cizeau,Delmotte

, p. 179 - 188 (2007/10/02)

Aryl β-glycopyranosides have been synthesized by coupling syringaldehyde (3-methoxyvanillin) with L-fucose, D-galactose, and maltose; acetosyringone (4-hydroxy-3,5-dimethoxyacetophenone) with L-fucose and maltose; acetovanillone (4-hydroxy-3-methoxyacetophenone) with L-fucose; and syringic acid (4-hydroxy-3,5-dimethoxybenzoic acid) with D-galactose. The procedure using peracetylated glycosyl halides and sodium phenolates in aqueous acetone afforded the acetylated β-glycosides, which were deacetylated. Aryl β-glycopyranosides have been synthesized by coupling syringaldehyde (3-methoxyvanillin) with L-fucose, D-galactose, and maltose; acetosyringone (4-hydroxy-3,5-dimethoxyacetophenone) with L-fucose and maltose; acetovanillone (4-hydroxy-3-methoxyacetophenone) with L-fucose; and syringic acid (4-hydroxy-3,5-dimethoxybenzoic acid) with D-galactose. The procedure using peracetylated glycosyl halides and sodium phenolates in aqueous acetone afforded the acetylated β-glycosides, which were deacetylated.

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