129039-69-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129039-69-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,0,3 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129039-69:
(8*1)+(7*2)+(6*9)+(5*0)+(4*3)+(3*9)+(2*6)+(1*9)=136
136 % 10 = 6
So 129039-69-6 is a valid CAS Registry Number.