54345-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54345-38-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,3,4 and 5 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54345-38:
(7*5)+(6*4)+(5*3)+(4*4)+(3*5)+(2*3)+(1*8)=119
119 % 10 = 9
So 54345-38-9 is a valid CAS Registry Number.