1223-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1223-52-5 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, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1223-52:
(6*1)+(5*2)+(4*2)+(3*3)+(2*5)+(1*2)=45
45 % 10 = 5
So 1223-52-5 is a valid CAS Registry Number.