129331-25-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129331-25-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,3 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 129331-25:
(8*1)+(7*2)+(6*9)+(5*3)+(4*3)+(3*1)+(2*2)+(1*5)=115
115 % 10 = 5
So 129331-25-5 is a valid CAS Registry Number.