30928-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30928-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,9,2 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 30928-43:
(7*3)+(6*0)+(5*9)+(4*2)+(3*8)+(2*4)+(1*3)=109
109 % 10 = 9
So 30928-43-9 is a valid CAS Registry Number.