129451-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129451-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,4,5 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129451-31:
(8*1)+(7*2)+(6*9)+(5*4)+(4*5)+(3*1)+(2*3)+(1*1)=126
126 % 10 = 6
So 129451-31-6 is a valid CAS Registry Number.