203124-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203124-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,2 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 203124-72:
(8*2)+(7*0)+(6*3)+(5*1)+(4*2)+(3*4)+(2*7)+(1*2)=75
75 % 10 = 5
So 203124-72-5 is a valid CAS Registry Number.