143183-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143183-25-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,1,8 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143183-25:
(8*1)+(7*4)+(6*3)+(5*1)+(4*8)+(3*3)+(2*2)+(1*5)=109
109 % 10 = 9
So 143183-25-9 is a valid CAS Registry Number.