1613623-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613623-71-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,6,2 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1613623-71:
(9*1)+(8*6)+(7*1)+(6*3)+(5*6)+(4*2)+(3*3)+(2*7)+(1*1)=144
144 % 10 = 4
So 1613623-71-4 is a valid CAS Registry Number.