1223-06-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1223-06-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,2 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1223-06:
(6*1)+(5*2)+(4*2)+(3*3)+(2*0)+(1*6)=39
39 % 10 = 9
So 1223-06-9 is a valid CAS Registry Number.