139564-62-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139564-62-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,6 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139564-62:
(8*1)+(7*3)+(6*9)+(5*5)+(4*6)+(3*4)+(2*6)+(1*2)=158
158 % 10 = 8
So 139564-62-8 is a valid CAS Registry Number.
139564-62-8Relevant articles and documents
Rod-Like Dispiro Compounds
Boettcher, J.,Hartmann, R.,Voegtle, F.
, p. 1865 - 1872 (2007/10/02)
A number of symmetrically and unsymmetrically substituted spiro compounds were synthesized starting from the dispirotrione 1. The trans-trans isomers of 2, 3, 6-10, and 11 were separated from the cis-cis and cis-trans isomers.From the trispiro co