134040-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134040-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,0,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134040-31:
(8*1)+(7*3)+(6*4)+(5*0)+(4*4)+(3*0)+(2*3)+(1*1)=76
76 % 10 = 6
So 134040-31-6 is a valid CAS Registry Number.