7224-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7224-09-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,2 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7224-09:
(6*7)+(5*2)+(4*2)+(3*4)+(2*0)+(1*9)=81
81 % 10 = 1
So 7224-09-1 is a valid CAS Registry Number.