53981-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53981-97-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,8 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 53981-97:
(7*5)+(6*3)+(5*9)+(4*8)+(3*1)+(2*9)+(1*7)=158
158 % 10 = 8
So 53981-97-8 is a valid CAS Registry Number.