857793-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857793-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,7,9 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 857793-16:
(8*8)+(7*5)+(6*7)+(5*7)+(4*9)+(3*3)+(2*1)+(1*6)=229
229 % 10 = 9
So 857793-16-9 is a valid CAS Registry Number.