200129-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200129-97-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,1,2 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 200129-97:
(8*2)+(7*0)+(6*0)+(5*1)+(4*2)+(3*9)+(2*9)+(1*7)=81
81 % 10 = 1
So 200129-97-1 is a valid CAS Registry Number.