72107-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72107-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,0 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72107-44:
(7*7)+(6*2)+(5*1)+(4*0)+(3*7)+(2*4)+(1*4)=99
99 % 10 = 9
So 72107-44-9 is a valid CAS Registry Number.