1216666-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216666-65-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,6,6 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1216666-65:
(9*1)+(8*2)+(7*1)+(6*6)+(5*6)+(4*6)+(3*6)+(2*6)+(1*5)=157
157 % 10 = 7
So 1216666-65-7 is a valid CAS Registry Number.
1216666-65-7Relevant academic research and scientific papers
Synthesis and cyclizations of 1-azapolyene derivatives
Vincze, Zoltán,Nemes, Péter
experimental part, p. 3380 - 3387 (2011/06/11)
Imminium salts of enaminonitriles with polyenals gave stable 1-azapolyenes, which could be readily transformed to benzo- and indoloquinolizines in 1,6-electrocyclizations. Azatrienes and azatetraenes with formaldehyde and primary amines afforded pyrimido[
