129886-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129886-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,8 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129886-31:
(8*1)+(7*2)+(6*9)+(5*8)+(4*8)+(3*6)+(2*3)+(1*1)=173
173 % 10 = 3
So 129886-31-3 is a valid CAS Registry Number.