19810-19-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19810-19-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,1 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19810-19:
(7*1)+(6*9)+(5*8)+(4*1)+(3*0)+(2*1)+(1*9)=116
116 % 10 = 6
So 19810-19-6 is a valid CAS Registry Number.