129959-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129959-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,5 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129959-04:
(8*1)+(7*2)+(6*9)+(5*9)+(4*5)+(3*9)+(2*0)+(1*4)=172
172 % 10 = 2
So 129959-04-2 is a valid CAS Registry Number.