72049-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72049-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,4 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72049-05:
(7*7)+(6*2)+(5*0)+(4*4)+(3*9)+(2*0)+(1*5)=109
109 % 10 = 9
So 72049-05-9 is a valid CAS Registry Number.