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Pharmaceutical Reference Standards / Impurity Standards

Levofloxacin

Levofloxacin

CAT. No.L050000
CAS. No.138199-71-0
Mol. F.2C18H20FN3O4.H2O
Mol. W.740.75 g/mol
Stock Status:Instock

Levofloxacin

Levofloxacin

CAT. No.L050000A
CAS. No.100986-85-4
Mol. F.C18H20FN3O4
Mol. W.361.37 g/mol
Stock Status:Instock

Levofloxacin EP Impurity B

Levofloxacin EP Impurity B

CAT. No.L050001
CAS. No.117707-40-1
Mol. F.C17H18FN3O4
Mol. W.347.34 g/mol
Stock Status:Instock

Levofloxacin N-Oxide

Levofloxacin N-Oxide

CAT. No.L050002
CAS. No.117678-38-3
Mol. F.C18H20FN3O5
Mol. W.377.37 g/mol
Stock Status:Instock

Levofloxacin N-Oxide

Levofloxacin N-Oxide

CAT. No.L050002A
CAS. No.117678-37-2
Mol. F.C18H20FN3O5
Mol. W.377.37 g/mol
Stock Status:Custom Synthesis

Levofloxacin 9-Piperazine Isomer

Levofloxacin 9-Piperazine Isomer

CAT. No.L050003
CAS. No.178912-62-4
Mol. F.C18H20FN3O4
Mol. W.361.37 g/mol
Stock Status:Instock

Levofloxacin Diamine Impurity Hydrochloride

Levofloxacin Diamine Impurity Hydrochloride

CAT. No.L050004
CAS. No.1797099-76-3
Mol. F.C15H17ClFN3O4
Mol. W.357.76 g/mol
Stock Status:Instock

Levofloxacin Diamine Hydrochloride Salt

Levofloxacin Diamine Hydrochloride Salt

CAT. No.L050004A
CAS. No.1797099-76-3
Mol. F.C15H17ClFN3O4
Mol. W.357.76 g/mol
Stock Status:Instock

Levofloxacin EP Impurity D

Levofloxacin EP Impurity D

CAT. No.L050005
CAS. No.117620-85-6
Mol. F.C18H21N3O4
Mol. W.343.38 g/mol
Stock Status:Limited Stock

Descarboxyl Levofloxacin Impurity Hydrochloride

Descarboxyl Levofloxacin Impurity Hydrochloride

CAT. No.L050006
CAS. No.178964-53-9(FreeBase)
Mol. F.C17H20FN3O2.HCl
Mol. W.353.8 g/mol; 317.2 g/mol (Free Base)
Stock Status:Instock

Descarboxyl Levofloxacin Impurity

Descarboxyl Levofloxacin Impurity

CAT. No.L050006A
CAS. No.178964-53-9
Mol. F.C17H20FN3O2
Mol. W.317.36 g/mol
Stock Status:Instock

Levofloxacin EP Impurity F

Levofloxacin EP Impurity F

CAT. No.L050007
CAS. No.100986-89-8
Mol. F.C13H9F2NO4
Mol. W.281.21 g/mol
Stock Status:Instock

Ofloxacin R-Isomer

Ofloxacin R-Isomer

CAT. No.L050008
CAS. No.100986-86-5
Mol. F.C18H20FN3O4
Mol. W.361.37 g/mol
Stock Status:Instock

Levofloxacin Hemihydrate

Levofloxacin Hemihydrate

CAT. No.L050008A
CAS. No.NA
Mol. F.C18H20FN3O4.1/2H2O
Mol. W.370.38 g/mol
Stock Status:Custom Synthesis

Levofloxacin Hydrochloride

Levofloxacin Hydrochloride

CAT. No.L050009
CAS. No.177325-13-2;100986-85-4(Freebase)
Mol. F.C18H20FN3O4.HCl
Mol. W.397.83 g/mol
Stock Status:Custom Synthesis

Levofloxacin EP Impurity G Hydrochloride salt

Levofloxacin EP Impurity G Hydrochloride salt

CAT. No.L050010
CAS. No.1346603-62-0
Mol. F.C16H19FN3O4Cl
Mol. W.371.79 g/mol
Stock Status:Instock

Levofloxacin EP Impurity I

Levofloxacin EP Impurity I

CAT. No.L050011
CAS. No.178912-62-4
Mol. F.C12H13N3O3
Mol. W.247.25 g/mol
Stock Status:Custom Synthesis

Levofloxacin Related Compound C

Levofloxacin Related Compound C

CAT. No.L050012
CAS. No. 177472-30-9
Mol. F.C20H24FN3O4
Mol. W.389.42 g/mol
Stock Status:Instock

(R)-(-)-2-Amino-1-propanol (D-ALANINOL)

(R)-(-)-2-Amino-1-propanol (D-ALANINOL)

CAT. No.L050014
CAS. No.35320-23-1
Mol. F.C3H9NO
Mol. W.75.11
Stock Status:Instock

Levofloxacin Impurity 2

Levofloxacin Impurity 2

CAT. No.L050015
CAS. No.NA
Mol. F.C9H11F2NO5S
Mol. W.283.25 g/mol
Stock Status:Custom Synthesis

Levofloxacin Impurity 3

Levofloxacin Impurity 3

CAT. No.L050016
CAS. No.NA
Mol. F.C10H12F2N2O3S
Mol. W.278.28 g/mol
Stock Status:Custom Synthesis

Ethyl 2-(2,3,4,5-Tetrafluorobenzoyl)acetate

Ethyl 2-(2,3,4,5-Tetrafluorobenzoyl)acetate

CAT. No.L050017
CAS. No.94695-50-8
Mol. F.C11H8F4O3
Mol. W.264.18 g/ mol
Stock Status:Instock

Ethyl 3-(N,N-dimethylamino)-2-(2,3,4,5-Tetrafluorobenzoyl)acrylate

Ethyl 3-(N,N-dimethylamino)-2-(2,3,4,5-Tetrafluorobenzoyl)acrylate

CAT. No.L050018
CAS. No.138998-47-7
Mol. F.C14H13F4NO3
Mol. W.319.25 g/mol
Stock Status:Custom Synthesis

Ethyl (2Z)-3-1-hydroxy-2-propanyl)amino)-2-(2,3,4,5-tetrafluorobenzoyl)acrylate

Ethyl (2Z)-3-1-hydroxy-2-propanyl)amino)-2-(2,3,4,5-tetrafluorobenzoyl)acrylate

CAT. No.L050019
CAS. No.110548-02-2
Mol. F.C15H15F4NO4
Mol. W.349.28 g/mol
Stock Status:Custom Synthesis

(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid

(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid

CAT. No.L050020
CAS. No.117620-84-5
Mol. F.C13H10FNO4
Mol. W.263.22 g/mol
Stock Status:Custom Synthesis

(R)-Ofloxacin Carboxylic Acid

(R)-Ofloxacin Carboxylic Acid

CAT. No.L050021
CAS. No.110548-07-7
Mol. F.C13H9F2NO4
Mol. W.281.21 g/mol
Stock Status:Instock

Levofloxacin Isomer Ester Impurity

Levofloxacin Isomer Ester Impurity

CAT. No.L050022
CAS. No.NA
Mol. F.C20H24FN3O4
Mol. W.389.42 g/mol
Stock Status:Custom Synthesis

Levofloxacin Chloromethyl Ester

Levofloxacin Chloromethyl Ester

CAT. No.L050023
CAS. No.2206825-95-6
Mol. F.C19H21ClFN3O4
Mol. W.409.84 g/mol
Stock Status:Custom Synthesis

N-Ethyl Levofloxacin

N-Ethyl Levofloxacin

CAT. No.L050024
CAS. No.106939-30-4
Mol. F.C19H22FN3O4
Mol. W.375.39 g/mol
Stock Status:Custom Synthesis

Levofloxacin Piperacinylbenzoxazole

Levofloxacin Piperacinylbenzoxazole

CAT. No.L050025
CAS. No.885517-47-5
Mol. F.C19H22FN3O4
Mol. W.375.39 g/mol
Stock Status:Custom Synthesis

Levofloxacin Methyl Ester

Levofloxacin Methyl Ester

CAT. No.L050026
CAS. No.862690-19-5
Mol. F.C19H22FN3O4
Mol. W.375.39 g/mol
Stock Status:Instock

Levofloxacin EP Impurity H

Levofloxacin EP Impurity H

CAT. No.L050027
CAS. No.177472-30-9
Mol. F.C20H24FN3O4
Mol. W.389.40 g/mol
Stock Status:Instock

(-)-(S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-chloromethyl-7H-pyrido(1,2,3-de)-1,4-benzoxazine-6-carboxylate

(-)-(S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-chloromethyl-7H-pyrido(1,2,3-de)-1,4-benzoxazine-6-carboxylate

CAT. No.L050028
CAS. No.NA
Mol. F.C19H21ClFN3O4
Mol. W.409.84 g/mol
Stock Status:Custom Synthesis

Levofloxacin Ep impurity I

Levofloxacin Ep impurity I

CAT. No.L050029
CAS. No.178912-62-4(base)
Mol. F.C18H21ClFN3O4.HCl
Mol. W.397.83 g/mol
Stock Status:Custom Synthesis

(S)-7,8-difluoro-3-methyl-2,3-dihydrobenzo[1,4]oxazine hydrogen sulfate

(S)-7,8-difluoro-3-methyl-2,3-dihydrobenzo[1,4]oxazine hydrogen sulfate

CAT. No.L050030
CAS. No.NA
Mol. F.C9H11F2NO5S
Mol. W.283.25 g/mol
Stock Status:Custom Synthesis

9-Defluoro-9-(4-methyl-1-piperazinyl) Levofloxacin

9-Defluoro-9-(4-methyl-1-piperazinyl) Levofloxacin

CAT. No.L050031
CAS. No.1329833-82-0
Mol. F.C23H31N5O4
Mol. W.441.52 g/mol
Stock Status:Custom Synthesis

9-Chloro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine -6-carboxylic acid

9-Chloro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine -6-carboxylic acid

CAT. No.L050032
CAS. No.NA
Mol. F.C18H20ClN3O4
Mol. W.377.82 g/mol
Stock Status:Custom Synthesis

Levofloxacin Impurity 7

Levofloxacin Impurity 7

CAT. No.L050033
CAS. No.1430222-73-3
Mol. F.C16H18FN3O2
Mol. W.303.33 g/mol
Stock Status:Instock

Levofloxacin Impurity 8

Levofloxacin Impurity 8

CAT. No.L050034
CAS. No.151250-74-7
Mol. F.C13H11FN2O4
Mol. W.278.24 g/mol
Stock Status:Instock

Desmethyl Levofloxacin

Desmethyl Levofloxacin

CAT. No.L050035
CAS. No.117707-40-1
Mol. F.C17H18FN3O4
Mol. W.347.34 g/mol
Stock Status:Custom Synthesis

Levofloxacin Desethylene Diformyl Impurity

Levofloxacin Desethylene Diformyl Impurity

CAT. No.L050036
CAS. No.151377-74-1
Mol. F.C18H18FN3O6
Mol. W.391.35 g/mol
Stock Status:Custom Synthesis

N-Nitroso Levofloxacin

N-Nitroso Levofloxacin

CAT. No.L050037
CAS. No.1152314-62-9
Mol. F.C17H17FN4O5
Mol. W.376.30 g/mol
Stock Status:Instock

Levofloxacin Hemihydrate EP Impurty G

Levofloxacin Hemihydrate EP Impurty G

CAT. No.L050038
CAS. No.151250-76-9(FreeBase)
Mol. F.C16H18FN3O4
Mol. W.335.33 g/mol
Stock Status:Custom Synthesis

Levofloxacin Diamine Impurity

Levofloxacin Diamine Impurity

CAT. No.L050039
CAS. No.1797510-34-9
Mol. F.C15H16FN3O4
Mol. W.321.30 g/mol
Stock Status:Instock

9-Defluoro-9-(4-methyl-1-piperazinyl) Levofloxacin hydrochloride

9-Defluoro-9-(4-methyl-1-piperazinyl) Levofloxacin hydrochloride

CAT. No.L050040
CAS. No.NA
Mol. F.C23H32ClN5O4
Mol. W.477.98 g/mol
Stock Status:Custom Synthesis

N-Nitroso Levofloxacin Impurity 3

N-Nitroso Levofloxacin Impurity 3

CAT. No.L050041
CAS. No.NA
Mol. F.C15H14F4N2O5
Mol. W.378.28 g/mol
Stock Status:Custom Synthesis

N-Nitroso Levofloxacin Impurity 2

N-Nitroso Levofloxacin Impurity 2

CAT. No.L050042
CAS. No.NA
Mol. F.C15H16ClFN4O5
Mol. W.386.76 g/mol
Stock Status:Custom Synthesis

(S)-10-((2-aminoethyl)(nitroso)amino)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

(S)-10-((2-aminoethyl)(nitroso)amino)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

CAT. No.L050043
CAS. No.NA
Mol. F.C15H15FN4O5
Mol. W.350.30 g/mol
Stock Status:Custom Synthesis

N-Nitroso Levofloxacin Impurity 4

N-Nitroso Levofloxacin Impurity 4

CAT. No.L050044
CAS. No.NA
Mol. F.C15H14FN3O5b
Mol. W.335.29 g/mol
Stock Status:Custom Synthesis

N-Nitroso Ofloxacin EP Impurity E

N-Nitroso Ofloxacin EP Impurity E

CAT. No.L050045
CAS. No.NA
Mol. F.C17H17FN4O5
Mol. W.376.30 g/mol
Stock Status:Custom Synthesis

Levofloxacin Impurity 11

Levofloxacin Impurity 11

CAT. No.L050046
CAS. No.889110-57-0
Mol. F.C14H11F2NO4
Mol. W.295.24 g/mol
Stock Status:Custom Synthesis

Isotope Labelled Compounds

Levofloxacin-d8

Levofloxacin-d8

CAT. No.L050013
CAS. No.1217716-71-6
Mol. F.C18H12D8FN3O4
Mol. W.369.42 g/mol
Stock Status:Instock