72129-46-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72129-46-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,2 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 72129-46:
(7*7)+(6*2)+(5*1)+(4*2)+(3*9)+(2*4)+(1*6)=115
115 % 10 = 5
So 72129-46-5 is a valid CAS Registry Number.