Molecular Formula: C₁₉H₁₇ClFN₃O₅S
Molar mass: 453.8718 g/mol
EINECS: 226-051-0
Density: 1.59 g/cm³
Flash Point: 363.4 °C
Index of Refraction: 1.672
Boiling Point: 677.3 °C at 760 mmHg
Vapour Pressure: 2.86E-19 mmHg at 25°C
Product categories of Flucloxacillin (5250-39-5): API's
Structure of Flucloxacillin (5250-39-5):

XLogP3-AA: 2.6
H-Bond Donor: 2
H-Bond Acceptor: 7
Systematic Name: (2S,5R,6R)-6-[[3-(2-Chloro-6-fluoro-phenyl)-5-methyl-isoxazole-4-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
SMILES: O=C(O)[C@@H]3N4C(=O)[C@@H](NC(=O)c2c(onc2c1c(F)cccc1Cl)C)[C@H]4SC3(C)C 
InChI: InChI=1/C19H17ClFN3O5S/c1-7-10(12(23-29-7)11-8(20)5-4-6-9(11)21)15(25)22-13-16(26)24-14(18(27)28)19(2,3)30-17(13)24/h4-6,13-14,17H,1-3H3,(H,22,25)(H,27,28)/t13-,14+,17-/m1/s1 
InChIKey: UIOFUWFRIANQPC-JKIFEVAIBS 
Std. InChI: InChI=1S/C19H17ClFN3O5S/c1-7-10(12(23-29-7)11-8(20)5-4-6-9(11)21)15(25)22-13-16(26)24-14(18(27)28)19(2,3)30-17(13)24/h4-6,13-14,17H,1-3H3,(H,22,25)(H,27,28)/t13-,14+,17-/m1/s1 
Std. InChIKey: UIOFUWFRIANQPC-JKIFEVAISA-N

 Flucloxacillin (5250-39-5) is used to treat infections caused by susceptible Gram-positive bacteria.It is also available under a variety of trade names including Floxapen (Beecham, now GSK) and Flopen (CSL).

 Flucloxacillin (5250-39-5) is a narrow spectrum beta-lactam antibiotic of the penicillin class, and also can be called Fluorochloroxacillin ; Flucloxacilina ; (2S,5R,6R)-6-({[3-(2-Chloro-6-fluorophenyl)-5-methyl-1,2-oxazol-4-yl]carbonyl}amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ;and 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[[3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-, (2S,5R,6R)- .Unlike other penicillins, it has activity against beta-lactamase-producing organisms such as Staphylococcus aureus as it is beta-lactamase stable. However, it is ineffective against MRSA. It is very similar to dicloxacillin and these two agents are considered interchangeable.