172945-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172945-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,4 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 172945-91:
(8*1)+(7*7)+(6*2)+(5*9)+(4*4)+(3*5)+(2*9)+(1*1)=164
164 % 10 = 4
So 172945-91-4 is a valid CAS Registry Number.
172945-91-4Relevant academic research and scientific papers
The preparation of a 3'-(2-cyanoethyl)phosphoramidite of 5'-O-(3- thiopropyl)methylphosphorylthymidine
Percival,Fishwick
, p. 1785 - 1794 (2007/10/02)
A high-yielding three-step reaction sequence to a useful novel phosphoramidite, using 3'-O-acetylthymidine as starting material, is reported.
