72304-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72304-33-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,0 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72304-33:
(7*7)+(6*2)+(5*3)+(4*0)+(3*4)+(2*3)+(1*3)=97
97 % 10 = 7
So 72304-33-7 is a valid CAS Registry Number.