131143-14-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131143-14-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,4 and 3 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131143-14:
(8*1)+(7*3)+(6*1)+(5*1)+(4*4)+(3*3)+(2*1)+(1*4)=71
71 % 10 = 1
So 131143-14-1 is a valid CAS Registry Number.