71898-69-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71898-69-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 71898-69:
(7*7)+(6*1)+(5*8)+(4*9)+(3*8)+(2*6)+(1*9)=176
176 % 10 = 6
So 71898-69-6 is a valid CAS Registry Number.
71898-69-6Relevant academic research and scientific papers
SOME NEW SYNTHETIC APPROACHES FOR THE PREPARATION OF PTERIDINE-3-OXIDES AND PTERIDINES
Kocevar, Marjan,Stanovnik, Branko,Tisler, Miha
, p. 293 - 296 (2007/10/02)
Starting from 2-amino-3-cyanopyrazine some new syntheses of 4-substituted pteridines and pteridine-3-oxides have been devised.