17730-39-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17730-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,3 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17730-39:
(7*1)+(6*7)+(5*7)+(4*3)+(3*0)+(2*3)+(1*9)=111
111 % 10 = 1
So 17730-39-1 is a valid CAS Registry Number.