859807-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859807-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,8,0 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 859807-91:
(8*8)+(7*5)+(6*9)+(5*8)+(4*0)+(3*7)+(2*9)+(1*1)=233
233 % 10 = 3
So 859807-91-3 is a valid CAS Registry Number.