330440-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 330440-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,4,4 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 330440-22:
(8*3)+(7*3)+(6*0)+(5*4)+(4*4)+(3*0)+(2*2)+(1*2)=87
87 % 10 = 7
So 330440-22-7 is a valid CAS Registry Number.