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155049-45-9

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155049-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155049-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,0,4 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 155049-45:
(8*1)+(7*5)+(6*5)+(5*0)+(4*4)+(3*9)+(2*4)+(1*5)=129
129 % 10 = 9
So 155049-45-9 is a valid CAS Registry Number.

155049-45-9Relevant articles and documents

A study of the epoxidation of 6-deoxyhex-5-enopyranosides. 1,5-Dicarbonyl derivatives and novel synthetic routes to D-xylo-hexos-5-ulose and D-lyxo-hexos-5-ulose

Enright, Philomena M.,Tosin, Manuela,Nieuwenhuyzen, Mark,Cronin, Linda,Murphy, Paul V.

, p. 3733 - 3741 (2002)

The work described deals with the isolation and characterization of epoxides from 6-deoxyhex-5-enopyranosides and preliminary exploration of their synthetic potential. Prolonged epoxidation reaction times led to their hydrolysis in situ and gave novel protected D-hexos-5-ulose derivatives (sugar 1,5-dicarbonyls). Some reactions of the hexos-5-uloses were studied, and in some cases septanoside (seven-membered-ring saccharide) derivatives were isolated. Novel routes to D-xylohexos-5-ulose and D-lyxo-hexos-5-ulose, of interest as intermediates in the synthesis and biosynthesis of inositols and aza sugars, are also described. The structures of the epoxides and novel hexos-5-uloses were established by NMR and X-ray crystallographic methods.

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