134031-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134031-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,0,3 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 134031-17:
(8*1)+(7*3)+(6*4)+(5*0)+(4*3)+(3*1)+(2*1)+(1*7)=77
77 % 10 = 7
So 134031-17-7 is a valid CAS Registry Number.