19959-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19959-26-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,5 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 19959-26:
(7*1)+(6*9)+(5*9)+(4*5)+(3*9)+(2*2)+(1*6)=163
163 % 10 = 3
So 19959-26-3 is a valid CAS Registry Number.