859813-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859813-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,8,1 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 859813-77:
(8*8)+(7*5)+(6*9)+(5*8)+(4*1)+(3*3)+(2*7)+(1*7)=227
227 % 10 = 7
So 859813-77-7 is a valid CAS Registry Number.