131068-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131068-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,6 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 131068-20:
(8*1)+(7*3)+(6*1)+(5*0)+(4*6)+(3*8)+(2*2)+(1*0)=87
87 % 10 = 7
So 131068-20-7 is a valid CAS Registry Number.
131068-20-7Relevant articles and documents
Investigations into a Mild Diels-Alder Approach to 6-Substituted Quinazoline-2,4-dione Derivatives
McNally, James J.,Press, Jeffery B.
, p. 245 - 251 (2007/10/02)
Furopyrimidine-2,4-dione (2) has been reacted with a number of dienophiles to give the Diels-Alder adducts such as 3 and 4 under very mild reaction conditions.Methyl acrylate gives only two regioisomeric endo products which have been isolated and c
