17902-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17902-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,0 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17902-43:
(7*1)+(6*7)+(5*9)+(4*0)+(3*2)+(2*4)+(1*3)=111
111 % 10 = 1
So 17902-43-1 is a valid CAS Registry Number.