7630-76-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7630-76-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,3 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7630-76:
(6*7)+(5*6)+(4*3)+(3*0)+(2*7)+(1*6)=104
104 % 10 = 4
So 7630-76-4 is a valid CAS Registry Number.