72039-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72039-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,3 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72039-41:
(7*7)+(6*2)+(5*0)+(4*3)+(3*9)+(2*4)+(1*1)=109
109 % 10 = 9
So 72039-41-9 is a valid CAS Registry Number.