777666-02-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 777666-02-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,7,6,6 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 777666-02:
(8*7)+(7*7)+(6*7)+(5*6)+(4*6)+(3*6)+(2*0)+(1*2)=221
221 % 10 = 1
So 777666-02-1 is a valid CAS Registry Number.