857809-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857809-74-6 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 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 857809-74:
(8*8)+(7*5)+(6*7)+(5*8)+(4*0)+(3*9)+(2*7)+(1*4)=226
226 % 10 = 6
So 857809-74-6 is a valid CAS Registry Number.