89800-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89800-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,0 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89800-63:
(7*8)+(6*9)+(5*8)+(4*0)+(3*0)+(2*6)+(1*3)=165
165 % 10 = 5
So 89800-63-5 is a valid CAS Registry Number.