857534-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857534-65-7 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 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 857534-65:
(8*8)+(7*5)+(6*7)+(5*5)+(4*3)+(3*4)+(2*6)+(1*5)=207
207 % 10 = 7
So 857534-65-7 is a valid CAS Registry Number.