169870-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169870-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,8,7 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 169870-78:
(8*1)+(7*6)+(6*9)+(5*8)+(4*7)+(3*0)+(2*7)+(1*8)=194
194 % 10 = 4
So 169870-78-4 is a valid CAS Registry Number.