1619984-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1619984-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,9,9,8 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1619984-56:
(9*1)+(8*6)+(7*1)+(6*9)+(5*9)+(4*8)+(3*4)+(2*5)+(1*6)=223
223 % 10 = 3
So 1619984-56-3 is a valid CAS Registry Number.