219989-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219989-07-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,8 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 219989-07:
(8*2)+(7*1)+(6*9)+(5*9)+(4*8)+(3*9)+(2*0)+(1*7)=188
188 % 10 = 8
So 219989-07-8 is a valid CAS Registry Number.