873416-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873416-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,4,1 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 873416-77:
(8*8)+(7*7)+(6*3)+(5*4)+(4*1)+(3*6)+(2*7)+(1*7)=194
194 % 10 = 4
So 873416-77-4 is a valid CAS Registry Number.