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33818-40-5

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33818-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33818-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,1 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 33818-40:
(7*3)+(6*3)+(5*8)+(4*1)+(3*8)+(2*4)+(1*0)=115
115 % 10 = 5
So 33818-40-5 is a valid CAS Registry Number.

33818-40-5Downstream Products

33818-40-5Relevant articles and documents

Synthesis of 5-thialdopentopyranoside via dithioacetal rearrangement and glycosidation to give pseudodisaccharides

Lepine, Carole,Roy, Caroline,Delorme, Daniel

, p. 1843 - 1846 (2007/10/02)

Rearrangement of acetylated 5-O-p-toluenesulfonyl-L-arabinose dibenzyl dithioacetal 10 gave benzyl 1,5-dithio-L-arabinopyranoside 6 which upon anomeric bromination followed by glycosidation led to pseudodisaccharide 20 containing a sulfur atom in the ring of the non-reducing unit. Similarly, benzyl 1,5-dithio-D-lyxopyranoside 17 was obtained from 5-O-p-toluenesulfonyl-D-lyxose dibenzyl dithioacetal 16.

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