857759-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857759-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,5 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 857759-30:
(8*8)+(7*5)+(6*7)+(5*7)+(4*5)+(3*9)+(2*3)+(1*0)=229
229 % 10 = 9
So 857759-30-9 is a valid CAS Registry Number.