857821-30-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857821-30-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,8,2 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 857821-30:
(8*8)+(7*5)+(6*7)+(5*8)+(4*2)+(3*1)+(2*3)+(1*0)=198
198 % 10 = 8
So 857821-30-8 is a valid CAS Registry Number.