1183709-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1183709-43-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,3,7,0 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1183709-43:
(9*1)+(8*1)+(7*8)+(6*3)+(5*7)+(4*0)+(3*9)+(2*4)+(1*3)=164
164 % 10 = 4
So 1183709-43-4 is a valid CAS Registry Number.