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1033090-89-9

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1033090-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1033090-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,3,0,9 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1033090-89:
(9*1)+(8*0)+(7*3)+(6*3)+(5*0)+(4*9)+(3*0)+(2*8)+(1*9)=109
109 % 10 = 9
So 1033090-89-9 is a valid CAS Registry Number.

1033090-89-9Downstream Products

1033090-89-9Relevant academic research and scientific papers

Studies on the synthesis and unusual behavior of vinyl sulfone-modified hexenopyranosylthymines

Deshpande, Sachin G.,Suresh, Cheravakkattu G.,Pathak, Tanmaya

, p. 1163 - 1170 (2008)

Although vinyl sulfone-modified- (VSM) pent-2′-enofuranosyl nucleosides 2 and hex-2-enopyranosyl glycoside 4 are easily synthesized from the corresponding mesylated sulfones 1c and 3c, respectively, via an oxidation-mesylation-elimination route, the 3′-C-sulfonyl-hex-2′-enopyranosylthymine 11 is not obtained from 10 and a glycal derivative 12 is formed instead. On the other hand, 3′-C-sulfonyl-hex-3′-enopyranosylthymine 20 is easily synthesized from the mesylated sulfone 19. Again unlike the reaction patterns of VSM-pent-2′-enofuranosyl nucleosides 2 and hex-2-enopyranosyl glycosides 4 as Michael acceptors, the reactions of nucleophiles with 3′-C-sulfonyl-hex-3′-enopyranosylthymine 20 yielded a rearranged product 21 instead of Michael adducts.

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