1228440-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228440-67-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,4,4 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1228440-67:
(9*1)+(8*2)+(7*2)+(6*8)+(5*4)+(4*4)+(3*0)+(2*6)+(1*7)=142
142 % 10 = 2
So 1228440-67-2 is a valid CAS Registry Number.