2566-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2566-65-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,6 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2566-65:
(6*2)+(5*5)+(4*6)+(3*6)+(2*6)+(1*5)=96
96 % 10 = 6
So 2566-65-6 is a valid CAS Registry Number.