2766-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2766-65-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,6 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2766-65:
(6*2)+(5*7)+(4*6)+(3*6)+(2*6)+(1*5)=106
106 % 10 = 6
So 2766-65-6 is a valid CAS Registry Number.