6219-61-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6219-61-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,1 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6219-61:
(6*6)+(5*2)+(4*1)+(3*9)+(2*6)+(1*1)=90
90 % 10 = 0
So 6219-61-0 is a valid CAS Registry Number.