129249-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129249-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,4 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129249-72:
(8*1)+(7*2)+(6*9)+(5*2)+(4*4)+(3*9)+(2*7)+(1*2)=145
145 % 10 = 5
So 129249-72-5 is a valid CAS Registry Number.