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497182-23-7

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497182-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497182-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,1,8 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 497182-23:
(8*4)+(7*9)+(6*7)+(5*1)+(4*8)+(3*2)+(2*2)+(1*3)=187
187 % 10 = 7
So 497182-23-7 is a valid CAS Registry Number.

497182-23-7Downstream Products

497182-23-7Relevant articles and documents

Blockwise Approach to Fragments of the O-Specific Polysaccharide of Shigella flexneri Serotype 2a: Convergent Synthesis of A Decasaccharide Representative of a Dimer of the Branched Repeating Unit

Belot, Frederic,Wright, Karen,Costachel, Corina,Phalipon, Armelle,Mulard, Laurence A.

, p. 1060 - 1074 (2007/10/03)

The D′A′B′(E′)C′DAB(E)C decasaccharide representative of a dimer of a frame-shifted pentasaccharide repeating unit of the O-specific polysaccharide of Shigella flexneri 2a was synthesized as its methyl glycoside by condensing a pentasaccharide donor (D′A′B′ (E′)C′) and a pentasaccharide acceptor (DAB(E)C-OMe). Several convergent routes to these two building blocks, involving either the AB linkage or the BC linkage as the disconnection site, were evaluated in comparison to the linear strategy. The latter was preferred. It is based on the use of the trichloroacetimidate chemistry. The target branched oligosaccharide was designed to probe the recognition at the molecular level of the natural polysaccharide by protective monoclonal antibodies.

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