156228-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156228-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,2 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156228-03:
(8*1)+(7*5)+(6*6)+(5*2)+(4*2)+(3*8)+(2*0)+(1*3)=124
124 % 10 = 4
So 156228-03-4 is a valid CAS Registry Number.