23491-13-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23491-13-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,9 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23491-13:
(7*2)+(6*3)+(5*4)+(4*9)+(3*1)+(2*1)+(1*3)=96
96 % 10 = 6
So 23491-13-6 is a valid CAS Registry Number.