259653-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 259653-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,6,5 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 259653-50:
(8*2)+(7*5)+(6*9)+(5*6)+(4*5)+(3*3)+(2*5)+(1*0)=174
174 % 10 = 4
So 259653-50-4 is a valid CAS Registry Number.