120129-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120129-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,2 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 120129-23:
(8*1)+(7*2)+(6*0)+(5*1)+(4*2)+(3*9)+(2*2)+(1*3)=69
69 % 10 = 9
So 120129-23-9 is a valid CAS Registry Number.