219985-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219985-77-0 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 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 219985-77:
(8*2)+(7*1)+(6*9)+(5*9)+(4*8)+(3*5)+(2*7)+(1*7)=190
190 % 10 = 0
So 219985-77-0 is a valid CAS Registry Number.