30543-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30543-43-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,5,4 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 30543-43:
(7*3)+(6*0)+(5*5)+(4*4)+(3*3)+(2*4)+(1*3)=82
82 % 10 = 2
So 30543-43-2 is a valid CAS Registry Number.