791843-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 791843-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,9,1,8,4 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 791843-20:
(8*7)+(7*9)+(6*1)+(5*8)+(4*4)+(3*3)+(2*2)+(1*0)=194
194 % 10 = 4
So 791843-20-4 is a valid CAS Registry Number.