689221-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689221-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,2 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 689221-98:
(8*6)+(7*8)+(6*9)+(5*2)+(4*2)+(3*1)+(2*9)+(1*8)=205
205 % 10 = 5
So 689221-98-5 is a valid CAS Registry Number.
689221-98-5Relevant academic research and scientific papers
The effect of universal fluorinated nucleobases on the catalytic activity of ribozymes
Kloepffer,Engels
, p. 1347 - 1350 (2007/10/03)
Four fluoro modified universal nucleobases have been synthesized. The universal nucleobases 1 and 2, containing a 2,4-difluorobenzene as nucleobase and a 4,6-difluorobenzimidazole, respectively, were chemically incorporated into a selected hammerhead ribo
