5045-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5045-23-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5045-23:
(6*5)+(5*0)+(4*4)+(3*5)+(2*2)+(1*3)=68
68 % 10 = 8
So 5045-23-8 is a valid CAS Registry Number.
InChI:InChI=1/C20H15N3O10S3.3Na/c21-14-9-12(34(25,26)27)7-11-8-16(35(28,29)30)18(19(24)17(11)14)23-22-15-6-5-10-3-1-2-4-13(10)20(15)36(31,32)33;;;/h1-9,22H,21H2,(H,25,26,27)(H,28,29,30)(H,31,32,33);;;/q;3*+1/p-3/b23-18+;;;