129954-34-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129954-34-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,5 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129954-34:
(8*1)+(7*2)+(6*9)+(5*9)+(4*5)+(3*4)+(2*3)+(1*4)=163
163 % 10 = 3
So 129954-34-3 is a valid CAS Registry Number.