123942-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123942-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123942-05:
(8*1)+(7*2)+(6*3)+(5*9)+(4*4)+(3*2)+(2*0)+(1*5)=112
112 % 10 = 2
So 123942-05-2 is a valid CAS Registry Number.
InChI:InChI=1/C20H16F2N2O3/c1-9-5-11(6-10(2)23-9)16-15(21)7-13-18(17(16)22)24(12-3-4-12)8-14(19(13)25)20(26)27/h5-8,12H,3-4H2,1-2H3,(H,26,27)
123942-05-2Relevant articles and documents
Synthesis and Antibacterial Activity of Some Novel 1-Substituted 1,4-Dihydro-4-oxo-7-pyridinyl-3-quinolinecarboxylic Acids. Potent Antistaphylococcal Agents
Reuman, Michael,Daum, Sol J.,Singh, Baldev,Wentland, Mark P.,Perni, Robert B.,et al.
, p. 2531 - 2540 (2007/10/02)
The palladium-catalyzed coupling of 3- and 4-(trialkylstannyl)pyridines with 7-bromo or 7-chloro 1-substituted 1,4-dihydro-4-oxo-3-quinolinecarboxylates has provided access to the corresponding 1-substituted 1,4-dihydro-4-oxo-7-pyridinyl-3-quinolinecarbox