191984-56-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191984-56-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,9,8 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 191984-56:
(8*1)+(7*9)+(6*1)+(5*9)+(4*8)+(3*4)+(2*5)+(1*6)=182
182 % 10 = 2
So 191984-56-2 is a valid CAS Registry Number.