188471-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188471-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,4,7 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188471-64:
(8*1)+(7*8)+(6*8)+(5*4)+(4*7)+(3*1)+(2*6)+(1*4)=179
179 % 10 = 9
So 188471-64-9 is a valid CAS Registry Number.
188471-64-9Relevant academic research and scientific papers
Acyliminium ion cyclizations: Synthesis of thieno[2',3':3,4]pyrrolo[2,1-a]isoindolone and benzo[a]thieno[2,3(3,2 or 3,4)-g]indolizinones
Othman, Mohamed,Pigeon, Pascal,Decroix, Bernard
, p. 2495 - 2504 (2007/10/03)
N-acyliminium cyclizations onto thiophene to give thieno[2',3':3,4]pyrrolo[2,1-a]isoindolone (2b) and benzo[a]thieno[2,3(3,2 or 3,4)-g]indolizinones (12a-c) were studied.
