1178393-23-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1178393-23-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,8,3,9 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1178393-23:
(9*1)+(8*1)+(7*7)+(6*8)+(5*3)+(4*9)+(3*3)+(2*2)+(1*3)=181
181 % 10 = 1
So 1178393-23-1 is a valid CAS Registry Number.