91298-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91298-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,9 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91298-45:
(7*9)+(6*1)+(5*2)+(4*9)+(3*8)+(2*4)+(1*5)=152
152 % 10 = 2
So 91298-45-2 is a valid CAS Registry Number.
91298-45-2Relevant articles and documents
A SYNTHESIS OF ψ-CYTIDINE
Pankiewicz, Krzysztof W.,Hirota, Kosaku,Matsuda, Akira,Watanabe, Kyoichi
, p. 227 - 234 (2007/10/02)
A practical, seven-step synthesis of 5-(β-D-ribofuranosyl)cytosine (1, ψ-cytidine) was achieved. ψ-uridine was converted into the 2',3'-isopropylidene acetal 2 in 85percent yield.Tosylation of 2 to the 5'-sulfonate 3, followed by deacetonation, afforded 5
