91653-32-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91653-32-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,5 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91653-32:
(7*9)+(6*1)+(5*6)+(4*5)+(3*3)+(2*3)+(1*2)=136
136 % 10 = 6
So 91653-32-6 is a valid CAS Registry Number.