109875-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109875-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,7 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109875-67:
(8*1)+(7*0)+(6*9)+(5*8)+(4*7)+(3*5)+(2*6)+(1*7)=164
164 % 10 = 4
So 109875-67-4 is a valid CAS Registry Number.
109875-67-4Relevant academic research and scientific papers
TRITYLOXYETHYLAMINO GROUP FOR THE PROTECTION OF PHOSPHORYL GROUP IN OLIGONUCLEOTIDE SYNTHESIS
Tanaka, Toshiki,Yamada, Yasuki,Ikehara, Morio
, p. 5641 - 5644 (2007/10/02)
Trityloxyethylamino group was used for the protection of 5'-phosphoryl group of deoxyribonucleoside.This group is not only protecting group of phosphate also the intermediate for the synthesis of d-ppA and d-pppA.
