129371-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129371-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,7 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129371-09:
(8*1)+(7*2)+(6*9)+(5*3)+(4*7)+(3*1)+(2*0)+(1*9)=131
131 % 10 = 1
So 129371-09-1 is a valid CAS Registry Number.