154534-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154534-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,5,3 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 154534-45:
(8*1)+(7*5)+(6*4)+(5*5)+(4*3)+(3*4)+(2*4)+(1*5)=129
129 % 10 = 9
So 154534-45-9 is a valid CAS Registry Number.