1181800-23-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1181800-23-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,8,0 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1181800-23:
(9*1)+(8*1)+(7*8)+(6*1)+(5*8)+(4*0)+(3*0)+(2*2)+(1*3)=126
126 % 10 = 6
So 1181800-23-6 is a valid CAS Registry Number.