857385-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857385-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,3,8 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 857385-77:
(8*8)+(7*5)+(6*7)+(5*3)+(4*8)+(3*5)+(2*7)+(1*7)=224
224 % 10 = 4
So 857385-77-4 is a valid CAS Registry Number.