Levofloxacin

17 Results Found

Page 1 of 1
view as:  

Levofloxacin API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com

  • Free

    Product Name : 6-fluoro-8-methoxy-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

    Code: JCLEV-16
    CAS: NA
    Chemical Formula: C16H18FN3O4
    Molecular Weight: 335.33
    Category: Levofloxacin  Reference Standards/Levofloxacin  API Drug Metabolites/Levofloxacin  EP Impurities/Levofloxacin USP Impurities
    Literature:
    Application:  6-fluoro-8-methoxy-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid is useful as reference Impurity standard
    6-fluoro-8-methoxy-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    Request a Quote

    View Product

  • Free

    Product Name : 6-amino-7-fluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid /86794-33-4

    Code: JCLEV-15
    CAS: 86794-33-4
    Chemical Formula: C13H11FN2O4
    Molecular Weight: 278.24
    Category: Levofloxacin  Reference Standards/Levofloxacin  API Drug Metabolites/Levofloxacin  EP Impurities/Levofloxacin USP Impurities
    Literature:
    Application:  6-amino-7-fluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid /86794-33-4 is useful as reference Impurity standard.
    6-amino-7-fluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid /86794-33-4
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin Desethylene N-Desmethyl Impurity (HCl) ; Levofloxacin Diamine HCl ; Levofloxacin Impurity 9 (HCl ; (S)-10-(2-Aminoethylamino)-9-fluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride ; 1797099-76-3 (HCl) ; 1797510-34-9 (Base)

    Code: JCLEV-14
    CAS: 1797099-76-3 (HCl) ; 1797510-34-9 (Base)
    Chemical Formula: C15H17ClFN3O4
    Molecular Weight: 357.76
    Category: Levofloxacin  Reference Standards/Levofloxacin  API Drug Metabolites/Levofloxacin  EP Impurities/Levofloxacin USP Impurities
    Literature:
    Application:  Levofloxacin Desethylene N-Desmethyl Impurity (HCl) ; Levofloxacin Diamine HCl ; Levofloxacin Impurity 9 (HCl ; (S)-10-(2-Aminoethylamino)-9-fluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride ; 1797099-76-3 (HCl) ; 1797510-34-9 (Base) is useful as reference Impurity standard.
    Levofloxacin Desethylene N-Desmethyl Impurity (HCl) ; Levofloxacin Diamine HCl ; Levofloxacin Impurity 9 (HCl ; (S)-10-(2-Aminoethylamino)-9-fluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride ; 1797099-76-3 (HCl) ; 1797510-34-9 (Base)
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin chloro analog; Levofloxacin Impurity 38; (S)-9-chloro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

    Code: JCLEV-13
    CAS: N/A
    Chemical Formula: C18H20ClN3O4
    Molecular Weight: 377.82
    Category: Levofloxacin  Reference Standards/Levofloxacin  API Drug Metabolites/Levofloxacin  EP Impurities/Levofloxacin USP Impurities
    Literature:
    Application:  Levofloxacin chloro analog; Levofloxacin Impurity 38; (S)-9-chloro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid is useful as reference Impurity standard.
    Levofloxacin chloro analog; Levofloxacin Impurity 38; (S)-9-chloro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid
    Request a Quote

    View Product

  • Free

    Product Name : N-Nitroso Levofloxacin Impuiryt-1; (S)-9-fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

    Code: JCNTS-N233
    CAS: NA
    Chemical Formula: C17H17FN4O5
    Molecular Weight: 376.34
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: N-Nitroso Levofloxacin Impuiryt-1; (S)-9-fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid ; is useful as reference Impurity standard.
    N-Nitroso Levofloxacin Impuiryt-1; (S)-9-fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid
    Request a Quote

    View Product

  • Free

    Product Name : N-nitroso-Desmethyl levofloxacin ; (3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-nitroso-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid ;(S)-9-Fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic Acid |1152314-62-9

    Code: JCLEV-12
    CAS: 1152314-62-9
    Chemical Formula: C₁₇H₁₇FN₄O₅
    Molecular Weight:376.34
    Category: Levofloxacin  Reference Standards/Levofloxacin  API Drug Metabolites/Levofloxacin  EP Impurities/Levofloxacin USP Impurities
    Literature:
    Application:  N-nitroso-Desmethyl levofloxacin ; (3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-nitroso-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid ;(S)-9-Fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic Acid |1152314-62-9 is useful as reference Impurity standard.
    N-nitroso-Desmethyl levofloxacin ; (3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-nitroso-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid ;(S)-9-Fluoro-3-methyl-10-(4-nitrosopiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic Acid |1152314-62-9
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin 9-Piperazinyl Isomer ; (-)-(S)-10-Fluoro-2,3-dihydro-3-methyl-9-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 178912-62-4

    Code: JCLEV-11
    CAS: 178912-62-4
    Chemical Formula:  C18H20FN3O4
    Molecular Weight: 361.37
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Levofloxacin 9-Piperazinyl Isomer ; (-)-(S)-10-Fluoro-2,3-dihydro-3-methyl-9-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 178912-62-4 is useful as reference Impurity standard.
    Levofloxacin 9-Piperazinyl Isomer ; (-)-(S)-10-Fluoro-2,3-dihydro-3-methyl-9-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 178912-62-4
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin USP RC C ; Levofloxacin USP Related Compound C ; Levofloxacin Ethyl Ester ; Ethyl (S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate | 177472-30-9

    Code: JCLEV-10
    CAS: 177472-30-9
    Chemical Formula: C20H24FN3O4
    Molecular Weight: 389.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin USP RC C ; Levofloxacin USP Related Compound C ; Levofloxacin Ethyl Ester ; Ethyl (S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate | 177472-30-9 is useful as reference Impurity standard.
    Levofloxacin USP RC C ; Levofloxacin USP Related Compound C ; Levofloxacin Ethyl Ester ; Ethyl (S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate | 177472-30-9
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin USP RC B ; Levofloxacin Difluoro Carboxylic Acid ; (S)-9,10-Difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid | 100986-89-8

    Code:  JCLEV-09
    CAS: 100986-89-8
    Chemical Formula: C13H9F2NO4
    Molecular Weight: 281.21
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin USP RC B ; Levofloxacin Difluoro Carboxylic Acid ; (S)-9,10-Difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid | 100986-89-8 is useful as reference Impurity standard.
    Levofloxacin USP RC B ; Levofloxacin Difluoro Carboxylic Acid ; (S)-9,10-Difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid | 100986-89-8
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin USP RC A ; Levofloxacin USP Related Compound A ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; N-Desmethyl Levofloxacin | 117707-40-1

    Code: JCLEV-08
    CAS: 117707-40-1
    Chemical Formula: C17H18FN3O4
    Molecular Weight: 347.34
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin USP RC A ; Levofloxacin USP Related Compound A ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; N-Desmethyl Levofloxacin | 117707-40-1 is useful as reference Impurity standard.
    Levofloxacin USP RC A ; Levofloxacin USP Related Compound A ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; N-Desmethyl Levofloxacin | 117707-40-1
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin R-Isomer ;(+)-(R)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; (R)-(+)-Ofloxacin ; D-Ofloxacin ; Ofloxacin R-Isomer | 100986-86-5

    Code: JCLEV-07
    CAS: 100986-86-5
    Chemical Formula: C18H20FN3O4
    Molecular Weight: 361.37
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin R-Isomer ;(+)-(R)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; (R)-(+)-Ofloxacin ; D-Ofloxacin ; Ofloxacin R-Isomer | 100986-86-5 is useful as reference Impurity standard.
    Levofloxacin R-Isomer ;(+)-(R)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ; (R)-(+)-Ofloxacin ; D-Ofloxacin ; Ofloxacin R-Isomer | 100986-86-5
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin N-Oxide ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid N-oxide | 117678-37-2

    Code: JCLEV-06
    CAS: 117678-37-2; 117678-38-3
    Chemical Formula: C18H20FN3O5
    Molecular Weight: 377.37
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin N-Oxide ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid N-oxide | 117678-37-2 is useful as reference Impurity standard.
    Levofloxacin N-Oxide ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid N-oxide | 117678-37-2
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin Hemihydrate ; S-(-)-Levofloxacin ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hemihydrate ;

    Code: JCLEV-05
    CAS:  138199-71-0
    Chemical Formula:C18H20FN3O4 • 1/2H2O
    Molecular Weight: 361.37
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin Hemihydrate ;S-(-)-Levofloxacin ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hemihydrate | 138199-71-0 is useful as reference Impurity standard.
    Levofloxacin Hemihydrate ; S-(-)-Levofloxacin ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hemihydrate ;
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin USP RC F ;Levofloxacin Desfluoro Impurity ; (-)-(S)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 117620-85-6

    Code: JCLEV-04
    CAS: 117620-85-6
    Chemical Formula: C18H21N3O4
    Molecular Weight: 343.38
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin USP RC F ;Levofloxacin Desfluoro Impurity ; (-)-(S)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 117620-85-6 is useful as reference Impurity standard.
    Levofloxacin USP RC F ;Levofloxacin Desfluoro Impurity ; (-)-(S)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 117620-85-6
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin USP RC E ;N,N’-Desethylene Levofloxacin Hydrochloride ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-[2-(methylamino)ethylamino]-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid HCl | 1346603-62-0

    Code: JCLEV-03
    CAS: 1346603-62-0
    Chemical Formula: C16H19ClFN3O4
    Molecular Weight: 371.79
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin USP RC E ;N,N’-Desethylene Levofloxacin Hydrochloride ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-[2-(methylamino)ethylamino]-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid HCl | 1346603-62-0 is useful as reference Impurity standard.
    Levofloxacin USP RC E ;N,N’-Desethylene Levofloxacin Hydrochloride ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-[2-(methylamino)ethylamino]-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid HCl | 1346603-62-0
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin Desethylene Diformyl Impurity ;Desethylene Diformyl Levofloxacin ; N,N’-Desethylene-N,N’-diformyl Levofloxacin ; (S)-9-Fluoro-10-[formyl[2-(formylmethylamino)ethyl]amino]-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 151377-74-1

    Code: JCLEV-02
    CAS: 151377-74-1
    Chemical Formula: C18H18FN3O6
    Molecular Weight: 391.35
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin Desethylene Diformyl Impurity ;Desethylene Diformyl Levofloxacin ; N,N’-Desethylene-N,N’-diformyl Levofloxacin ; (S)-9-Fluoro-10-[formyl[2-(formylmethylamino)ethyl]amino]-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 151377-74-1 is useful as reference Impurity standard.
    Levofloxacin Desethylene Diformyl Impurity ;Desethylene Diformyl Levofloxacin ; N,N’-Desethylene-N,N’-diformyl Levofloxacin ; (S)-9-Fluoro-10-[formyl[2-(formylmethylamino)ethyl]amino]-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid | 151377-74-1
    Request a Quote

    View Product

  • Free

    Product Name : Levofloxacin Descarboxy Impurity ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine | 178964-53-9

    Code: JCLEV-01
    CAS: 178964-53-9
    Chemical Formula: C17H20FN3O2
    Molecular Weight: 317.36
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Levofloxacin Descarboxy Impurity ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine | 178964-53-9 is useful as reference Impurity standard.
    Levofloxacin Descarboxy Impurity ; (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine | 178964-53-9
    Request a Quote

    View Product