15623-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15623-13-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,6,2 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15623-13:
(7*1)+(6*5)+(5*6)+(4*2)+(3*3)+(2*1)+(1*3)=89
89 % 10 = 9
So 15623-13-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H23N7O6/c1-9-13(24-15-16(23-9)26-20(21)27-18(15)31)8-22-11-4-2-10(3-5-11)17(30)25-12(19(32)33)6-7-14(28)29/h2-5,9,12,22H,6-8H2,1H3,(H,25,30)(H,28,29)(H,32,33)(H4,21,23,26,27,31)/p-2/t9?,12-/m0/s1