53656-73-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53656-73-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,6,5 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 53656-73:
(7*5)+(6*3)+(5*6)+(4*5)+(3*6)+(2*7)+(1*3)=138
138 % 10 = 8
So 53656-73-8 is a valid CAS Registry Number.