873964-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873964-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,9,6 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 873964-28:
(8*8)+(7*7)+(6*3)+(5*9)+(4*6)+(3*4)+(2*2)+(1*8)=224
224 % 10 = 4
So 873964-28-4 is a valid CAS Registry Number.