659-71-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 659-71-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 659-71:
(5*6)+(4*5)+(3*9)+(2*7)+(1*1)=92
92 % 10 = 2
So 659-71-2 is a valid CAS Registry Number.