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158774-88-0

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158774-88-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158774-88-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,7,7 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 158774-88:
(8*1)+(7*5)+(6*8)+(5*7)+(4*7)+(3*4)+(2*8)+(1*8)=190
190 % 10 = 0
So 158774-88-0 is a valid CAS Registry Number.

158774-88-0Upstream product

158774-88-0Relevant articles and documents

New synthesis of 3′-c-substituted-3′-nitromethyl-ribo-thymidines

Garg,Hossain,Plavec,Chattopadhyaya

, p. 4167 - 4178 (2007/10/02)

The 3′-exo-nitromethylene function in ribo-thymidine, as in 3, has been used for the first time as a general intermediate in the Michael addition reaction to give varieties of 3′-C-substituted nucleosides (12 - 21). The reaction of the conjugate base of acetylacetone with 3 however gave cis-fused furanose[3.2.1]hexopyranose nucleoside 24 as a major product due to the base catalyzed rearrangement of the initially formed Michael adduct 17. Detailed NMR spectroscopic data have been presented in support of the structural integrity of all reaction products.

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