1123178-72-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1123178-72-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,3,1,7 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1123178-72:
(9*1)+(8*1)+(7*2)+(6*3)+(5*1)+(4*7)+(3*8)+(2*7)+(1*2)=122
122 % 10 = 2
So 1123178-72-2 is a valid CAS Registry Number.