143954-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143954-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,5 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 143954-18:
(8*1)+(7*4)+(6*3)+(5*9)+(4*5)+(3*4)+(2*1)+(1*8)=141
141 % 10 = 1
So 143954-18-1 is a valid CAS Registry Number.