91359-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91359-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,3,5 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91359-03:
(7*9)+(6*1)+(5*3)+(4*5)+(3*9)+(2*0)+(1*3)=134
134 % 10 = 4
So 91359-03-4 is a valid CAS Registry Number.
91359-03-4Relevant articles and documents
A SIMPLE SYNTHESIS OF SOME CYCLIC AND ACYCLIC CYCLOBUTENEDIONES
Liebeskind, Lanny S.,Baysdon, Sherrol L.
, p. 1747 - 1750 (2007/10/02)
Cyclobutenediones can be prepared from cyclic and acyclic ketones by a simple four step procedure.