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LEVOFLOXACIN

L-231

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Catalogue Number:	L-231
Compound Name:	Levofloxacin
Synonyms:	(S)-9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid
CAS#:	100986-85-4
Alternate CAS#:
Molecular Formula:	C₁₈H₂₀FN₃O₄
Molecular Weight:	361.37

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Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Desmethyl Levofloxacin-d8

C18H10FN3O4D8

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Levofloxacin EP Impurity D (Levofloxacin USP Related Compound F, Defluoro Levofloxacin)

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Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity G (Levofloxacin USP Related Compound E (Free Form), N,N'-Desethylene Levofloxacin)

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C₁₆H₁₈FN₃O₄

M.W. 335.34

L-238

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Diamine

CAS No. 1797510-34-9

C₁₅H₁₆FN₃O₄

M.W. 321.31

L-239

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

(R)-Levofloxacin

C18H20FN3O4

M.W. 361.38

L-2310

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity H (Levofloxacin USP Related Compound C)

CAS No. 177472-30-9

C₂₀H₂₄FN₃O₄

M.W. 389.43

L-2311

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin-d8 HCl

C₁₈H₁₂D₈FN₃O₄. HCl

M.W. 369.42 36.46

L-2312

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Diformyl Impurity

CAS No. 151377-74-1

C₁₈H₁₈FN₃O₆

M.W. 391.36

L-2313

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity C (Levofloxacin N-Oxide)

CAS No. 117678-38-3

C₁₈H₂₀FN₃O₅

M.W. 377.37

L-2314

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin-Acyl-D-Glucuronide

CAS No. 160962-46-9

C24H28FN3O10

M.W. 537.50

L-2315

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Ofloxacin EP Impurity D (S-Isomer) (9-Piperazine Levofloxacin Impurity)

CAS No. 178912-62-4

C₁₈H₂₀FN₃O₄

M.W. 361.37

L-2316

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity E ((S)-Ofloxacin EP Impurity B, Decarboxyl Levofloxacin)

CAS No. 178964-53-9

C₁₇H₂₀FN₃O₂

M.W. 317.36

L-2351

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 35

CAS No. 117620-82-3

C₁₃H₁₀FNO₄

M.W. 263.22

L-2317

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 14

CAS No. 110548-02-2

C₁₅H₁₅F₄NO₄

M.W. 349.28

L-2318

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 15

CAS No. 103995-33-1

C14H12F4O4

M.W. 320.24

L-2319

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 3

CAS No. 2489671-28-3

C₁₈H₂₀FN₃O₄

M.W. 361.38

L-2320

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 4

C₂₃H₃₀FN₅O₃

M.W. 443.52

L-2321

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 5

CAS No. 2206360-62-3

C₁₃H₁₀FNO₅

M.W. 279.22

L-2322

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

rac-Levofloxacin Impurity 6

C₂₃H₃₁N₅O₄

M.W. 441.53

L-2323

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 7

CAS No. 1607796-83-7

C15H14FNO5

M.W. 307.28

L-2324

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 8

CAS No. 110548-07-7

C13H9F2NO4

M.W. 281.22

L-2325

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 9

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C15H13F2NO4

M.W. 309.27

L-2326

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 10

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C₁₅H₁₃F₂NO₄

M.W. 309.27

L-2327

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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CAS No. 106939-42-8 (free base)

C9H9F2NO. H2O4S

M.W. 185.17 98.08

L-2328

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 12

C10H12F2N2O3S

M.W. 278.28

L-2329

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 13 HCl

C₁₈H₂₁F₂N₃O₄. HCl

M.W. 381.38 36.46

L-2330

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 16

C19H21ClFN3O4

M.W. 409.84

L-2331

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Ethyl Levofloxacin

CAS No. 106939-30-4

C19H22FN3O4

M.W. 375.40

L-2332

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 17

CAS No. 110548-03-3

C15H14F3NO4

M.W. 329.28

L-2333

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 18

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C15H15F4NO3

M.W. 333.28

L-2334

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 19

C14H13F4NO3

M.W. 319.26

L-2335

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 20

C19H22FN3O3

M.W. 359.40

L-2336

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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L-2337

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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M.W. 409.43

L-2338

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 23

C16H17N3O4

M.W. 315.33

L-2339

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 24

C13H11F2NO4

M.W. 283.23

L-2340

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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M.W. 291.28

L-2341

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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M.W. 263.22

L-2342

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

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C₁₃H₉F₂NO₄

M.W. 281.21

L-2343

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity G HCl (Levofloxacin USP Related Compound E, N,N'-Desethylene Levofloxacin HCl)

CAS No. 1346603-62-0

C₁₆H₁₈FN₃O₄. HCl

M.W. 335.34 36.46

L-2344

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 28

C19H22ClFIN3O4

M.W. 537.75

L-2345

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 29

C17H18FN3O4

M.W. 347.35

L-2346

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 30

C₁₈H₂₂FN₃O₄

M.W. 363.39

L-2347

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 31

C₁₈H₂₂FN₃O₄

M.W. 363.39

L-2348

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 32

CAS No. 1430222-73-3

C₁₆H₁₈FN₃O₂

M.W. 303.34

L-2349

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 33

C₁₅H₁₈FN₃O₂

M.W. 291.33

L-2350

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 34

CAS No. 151250-74-7

C₁₃H₁₁FN₂O₄

M.W. 278.24

L-2352

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 36

C₁₇H₁₈FN₃O₄

M.W. 347.34

L-2353

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 37

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C₁₉H₂₂FN₃O₄

M.W. 375.39

L-2354

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 38

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C₁₉H₂₀FN₃O₄

M.W. 373.38

L-2355

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 39

CAS No. 165071-04-5

C₁₄H₁₁FN₂O₅

M.W. 306.25

L-2356

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 40

C₁₈H₂₀FN₃O₄

M.W. 361.37

L-2357

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 41

CAS No. 1037620-91-9

C₁₈H₂₁N₃O₅

M.W. 359.38

L-2358

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 42

C₁₆H₁₇FN₂O₅

M.W. 336.32

L-2359

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 43

CAS No. 656250-12-3

C₁₅H₁₅FN₂O₄

M.W. 306.29

L-2360

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 44

CAS No. 1007839-62-4

C₁₂H₉F₂NO₂

M.W. 237.21

L-2361

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 45 Iodide

C₁₉H₂₃FN₃O₄. I

M.W. 376.41 126.90

L-2362

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 46

C₁₃H₁₁FN₂O₄

M.W. 278.24

L-2363

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 47

C₁₇H₁₆FN₃O₄

M.W. 345.33

L-2364

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 48 HCl

C₁₇H₁₈FN₃O₅. HCl

M.W. 363.35 36.46

L-2365

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 49

CAS No. 154228-18-9

C₁₄H₁₃F₄NO₃

M.W. 319.26

L-2366

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 50

CAS No. 1416578-41-0

C₁₅H₁₅F₄NO₄

M.W. 349.28

L-2367

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

(R)-Levofloxacin N-Oxide

CAS No. 117678-37-2

C₁₈H₂₀FN₃O₅

M.W. 377.37

L-2368

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 51

CAS No. 151250-73-6

C₁₇H₁₈FN₃O₅

M.W. 363.35

L-2369

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 52

C₁₅H₁₇F₄NO₄

M.W. 351.30

L-2370

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 53

CAS No. 902172-11-6; 97746-91-3

C₁₇H₁₄BF₂NO₈

M.W. 409.10

L-2371

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Ofloxacin Isopropyl Ester

C₂₁H₂₆FN₃O₄

M.W. 403.45

L-2372

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 54

CAS No. 1369498-86-1

C₁₃H₉BrFNO₄

M.W. 342.12

L-2373

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Nitroso Levofloxacin Diamine

C₁₅H₁₅FN₄O₅. HCl

M.W. 350.31 36.46

L-2374

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Nitroso Levofloxacin EP Impurity B (N-Nitroso Levofloxacin USP Related Compound A, N-Nitroso-N-Desmethyl Levofloxacin)

CAS No. 1152314-62-9

C₁₇H₁₇FN₄O₅

M.W. 376.34

L-2376

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 55

CAS No. 1231206-21-5

C₁₅H₁₆FN₃O₄

M.W. 321.31

L-2377

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 56

C₁₈H₂₀FN₃O₆

M.W. 393.37

L-2378

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N1-Nitroso Levofloxacin EP Impurity G

C₁₆H₁₇FN₄O₅

M.W. 364.33

L-2379

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N,N-Dinitroso Levofloxacin EP Impurity G

C₁₆H₁₆FN₅O₆

M.W. 393.33

L-2380

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N2-Nitroso Levofloxacin EP Impurity G

C₁₆H₁₇FN₄O₅

M.W. 364.33

L-2381

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Diamine-d4

C₁₅H₁₂D₄FN₃O₄

M.W. 325.33

L-2382

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Nitroso Levofloxacin Diamine-d4

C₁₅H₁₁D₄FN₄O₅

M.W. 354.33

L-2383

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin EP Impurity B-d8 Trifluoroacetate (Levofloxacin USP Related Compound A-d8 Trifluoroacetate, N-Desmethyl Levofloxacin-d8 Trifluoroacetate)

C₁₇H₁₀D₈FN₃O₄. C₂HF₃O₂

M.W. 355.40 114.02

L-2384

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Nitroso Levofloxacin EP Impurity B-d8 (N-Nitroso Levofloxacin USP Related Compound A-d8, N-Nitroso-N-Desmethyl Levofloxacin-d8)

C₁₇H₉D₈FN₄O₅

M.W. 384.39

L-2385

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

Levofloxacin Impurity 57

C₁₈H₂₂FN₅O₄

M.W. 391.40

L-2386

Levofloxacin EP Impurity F (Levofloxacin USP Related Compound B)

N-Nitroso Levofloxacin EP Impurity B-d4 (N-Nitroso Levofloxacin USP Related Compound A-d4, N-Nitroso N-Desmethyl Levofloxacin-d4)

C₁₇H₁₃D₄FN₄O₅

M.W. 380.37