158146-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158146-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,1,4 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 158146-80:
(8*1)+(7*5)+(6*8)+(5*1)+(4*4)+(3*6)+(2*8)+(1*0)=146
146 % 10 = 6
So 158146-80-6 is a valid CAS Registry Number.
158146-80-6Relevant articles and documents
The tandem cycloaddition chemistry of nitroalkenes. A novel synthesis of (-)-hastanecine
Denmark,Thorarensen
, p. 5672 - 5680 (2007/10/02)
A short and efficient asymmetric synthesis of the pyrrolizidine necine base (-)-hastanecine is described. The key reaction in the synthesis is a sequential inter [4 + 2]/inter [3 + 2] cycloaddition. The Lewis acid promoted [4 + 2] cycloaddition between 2-
