115781-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115781-23-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,7,8 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 115781-23:
(8*1)+(7*1)+(6*5)+(5*7)+(4*8)+(3*1)+(2*2)+(1*3)=122
122 % 10 = 2
So 115781-23-2 is a valid CAS Registry Number.