481704-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 481704-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,1,7,0 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 481704-72:
(8*4)+(7*8)+(6*1)+(5*7)+(4*0)+(3*4)+(2*7)+(1*2)=157
157 % 10 = 7
So 481704-72-7 is a valid CAS Registry Number.
481704-72-7Relevant articles and documents
An efficient synthesis of thalifoline
Wang, You-Chu,Georghiou, Paris E.
, p. 2187 - 2190 (2002)
An efficient multi-step approach for the synthesis of the isoquinolin-1-one alkaloid thalifoline (1) is described. The key intermediate carbamate 8a underwent a modified Bischler-Napieralski-type cyclization using Banwell's Tf2O/DMAP conditions to form the lactam 9a under mild conditions and in excellent yield.
