73249-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73249-73-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,4 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73249-73:
(7*7)+(6*3)+(5*2)+(4*4)+(3*9)+(2*7)+(1*3)=137
137 % 10 = 7
So 73249-73-7 is a valid CAS Registry Number.