857797-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857797-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,9 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 857797-78:
(8*8)+(7*5)+(6*7)+(5*7)+(4*9)+(3*7)+(2*7)+(1*8)=255
255 % 10 = 5
So 857797-78-5 is a valid CAS Registry Number.