328023-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 328023-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,8,0,2 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 328023-30:
(8*3)+(7*2)+(6*8)+(5*0)+(4*2)+(3*3)+(2*3)+(1*0)=109
109 % 10 = 9
So 328023-30-9 is a valid CAS Registry Number.