859807-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859807-50-4 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, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 859807-50:
(8*8)+(7*5)+(6*9)+(5*8)+(4*0)+(3*7)+(2*5)+(1*0)=224
224 % 10 = 4
So 859807-50-4 is a valid CAS Registry Number.