330997-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 330997-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,9,9 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 330997-72:
(8*3)+(7*3)+(6*0)+(5*9)+(4*9)+(3*7)+(2*7)+(1*2)=163
163 % 10 = 3
So 330997-72-3 is a valid CAS Registry Number.