1228103-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228103-79-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,1,0 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1228103-79:
(9*1)+(8*2)+(7*2)+(6*8)+(5*1)+(4*0)+(3*3)+(2*7)+(1*9)=124
124 % 10 = 4
So 1228103-79-4 is a valid CAS Registry Number.