59971-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59971-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,9,7 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 59971-23:
(7*5)+(6*9)+(5*9)+(4*7)+(3*1)+(2*2)+(1*3)=172
172 % 10 = 2
So 59971-23-2 is a valid CAS Registry Number.