156263-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156263-72-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,6 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 156263-72:
(8*1)+(7*5)+(6*6)+(5*2)+(4*6)+(3*3)+(2*7)+(1*2)=138
138 % 10 = 8
So 156263-72-8 is a valid CAS Registry Number.
156263-72-8Relevant articles and documents
Tandem radical cyclisations: Synthesis of lysergic acid derivatives
Ozlu,Cladingboel,Parsons
, p. 2183 - 2206 (2007/10/02)
A novel free radical cyclisation approach for the synthesis of lysergic acid analogues has been investigated. The homolytic cleavage of carbon- bromine bond, mediated by tri-n-butyltin hydride, led to the development of a method for the construction of 3,
