129201-66-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129201-66-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,0 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 129201-66:
(8*1)+(7*2)+(6*9)+(5*2)+(4*0)+(3*1)+(2*6)+(1*6)=107
107 % 10 = 7
So 129201-66-7 is a valid CAS Registry Number.