54043-03-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54043-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,4 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 54043-03:
(7*5)+(6*4)+(5*0)+(4*4)+(3*3)+(2*0)+(1*3)=87
87 % 10 = 7
So 54043-03-7 is a valid CAS Registry Number.