15656-73-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15656-73-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,6,5 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15656-73:
(7*1)+(6*5)+(5*6)+(4*5)+(3*6)+(2*7)+(1*3)=122
122 % 10 = 2
So 15656-73-2 is a valid CAS Registry Number.