13753-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13753-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,5 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13753-72:
(7*1)+(6*3)+(5*7)+(4*5)+(3*3)+(2*7)+(1*2)=105
105 % 10 = 5
So 13753-72-5 is a valid CAS Registry Number.
InChI:InChI=1/C25H20N4O4/c1-33-20-12-10-18(11-13-20)27-25(31)22-14-17-4-2-3-5-21(17)23(24(22)30)29-28-19-8-6-16(7-9-19)15-26-32/h2-15,28,32H,1H3,(H,27,31)/b26-15+,29-23+