7625-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7625-66-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,2 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7625-66:
(6*7)+(5*6)+(4*2)+(3*5)+(2*6)+(1*6)=113
113 % 10 = 3
So 7625-66-3 is a valid CAS Registry Number.