857535-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857535-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,3 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 857535-80:
(8*8)+(7*5)+(6*7)+(5*5)+(4*3)+(3*5)+(2*8)+(1*0)=209
209 % 10 = 9
So 857535-80-9 is a valid CAS Registry Number.