7766-07-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7766-07-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,6 and 6 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7766-07:
(6*7)+(5*7)+(4*6)+(3*6)+(2*0)+(1*7)=126
126 % 10 = 6
So 7766-07-6 is a valid CAS Registry Number.