857804-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857804-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,8,0 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 857804-17:
(8*8)+(7*5)+(6*7)+(5*8)+(4*0)+(3*4)+(2*1)+(1*7)=202
202 % 10 = 2
So 857804-17-2 is a valid CAS Registry Number.