129601-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129601-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,0 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129601-68:
(8*1)+(7*2)+(6*9)+(5*6)+(4*0)+(3*1)+(2*6)+(1*8)=129
129 % 10 = 9
So 129601-68-9 is a valid CAS Registry Number.