134440-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134440-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,4 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134440-71:
(8*1)+(7*3)+(6*4)+(5*4)+(4*4)+(3*0)+(2*7)+(1*1)=104
104 % 10 = 4
So 134440-71-4 is a valid CAS Registry Number.