89521-63-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89521-63-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89521-63:
(7*8)+(6*9)+(5*5)+(4*2)+(3*1)+(2*6)+(1*3)=161
161 % 10 = 1
So 89521-63-1 is a valid CAS Registry Number.