72954-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72954-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,5 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72954-43:
(7*7)+(6*2)+(5*9)+(4*5)+(3*4)+(2*4)+(1*3)=149
149 % 10 = 9
So 72954-43-9 is a valid CAS Registry Number.