1309611-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309611-67-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,6,1 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1309611-67:
(9*1)+(8*3)+(7*0)+(6*9)+(5*6)+(4*1)+(3*1)+(2*6)+(1*7)=143
143 % 10 = 3
So 1309611-67-3 is a valid CAS Registry Number.
1309611-67-3Relevant 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[
