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    Home / Products / (2S,5R,6R)-6-((R)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
    (2S,5R,6R)-6-((R)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    (2S,5R,6R)-6-((R)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Synonym

    (2S,5R,6R)-6-((R)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C27H28ClN5O8S2

    Molecular Weight

    650.13

    Catalogue Number

    AR-C03378

    Parent Drug

    CLOXACILLIN

    Common Package:10,25,50,100 mg

    Collections: CLOXACILLIN

    Category: AR-C03378 C27H28ClN5O8S2 CLOXACILLIN

    RELATED PRODUCTS
    (3S,7R,7aR)-5-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazol-4-yl)-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic acid

    Synonym

    (3S,7R,7aR)-5-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazol-4-yl)-2,2-dimethyl-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic acid

    Molecular Formula

    C19H17ClFN3O5S

    Molecular Weight

    453.87

    Catalogue Number

    AR-C03382

    Parent Drug

    CLOXACILLIN
    (2S,5R,6R)-6-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide

    Synonym

    (2S,5R,6R)-6-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide

    Molecular Formula

    C19H17ClFN3O6S

    Molecular Weight

    469.87

    Catalogue Number

    AR-C03381

    Parent Drug

    CLOXACILLIN
    2-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)acetic acid

    Synonym

    2-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)acetic acid

    Molecular Formula

    C13H10ClFN2O4

    Molecular Weight

    312.68

    Catalogue Number

    AR-C03380

    Parent Drug

    CLOXACILLIN

    CAS Number

    866150-92-7
    2-(3-(2-chloro-6-fluorophenyl)isoxazole-4-carboxamido)acetic acid

    Synonym

    2-(3-(2-chloro-6-fluorophenyl)isoxazole-4-carboxamido)acetic acid

    Molecular Formula

    C12H8ClFN2O4

    Molecular Weight

    298.65

    Catalogue Number

    AR-C03379

    Parent Drug

    CLOXACILLIN
    (2R,5R,6R)-6-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carbothioic S-acid

    Synonym

    (2R,5R,6R)-6-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carbothioic S-acid

    Molecular Formula

    C19H18ClN3O4S2

    Molecular Weight

    451.95

    Catalogue Number

    AR-C03377

    Parent Drug

    CLOXACILLIN
    5-Hydroxymethyl Cloxacillin

    Synonym

    sodium (2S,5R,6R)-6-(3-(2-chlorophenyl)-5-(hydroxymethyl)isoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

    Molecular Formula

    C19H17ClN3O6S . Na

    Molecular Weight

    450.88 22.99

    Catalogue Number

    AR-C03376

    Parent Drug

    CLOXACILLIN
    Cloxacillin EP Impurity D

    Synonym

    3-(2-chlorophenyl)-5-methylisoxazole-4-carboxylic acid

    Molecular Formula

    C11H8ClNO3

    Molecular Weight

    237.64

    Catalogue Number

    AR-C03375

    Parent Drug

    CLOXACILLIN

    CAS Number

    23598-72-3
    Oxacillin Impurity G

    Synonym

    (2S,5R,6R)-6-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C19H18ClN3O5S

    Molecular Weight

    434.89

    Catalogue Number

    AR-C03374

    Parent Drug

    CLOXACILLIN

    CAS Number

    724695-30-1
    Oxacillin Impurity I

    Synonym

    (2S,5R,6R)-6-((2S,5R,6R)-3,3-dimethyl-6-(5-methyl-3-phenylisoxazole-4-carboxamido)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C27H29N5O7S2

    Molecular Weight

    599.69

    Catalogue Number

    AR-C03373

    Parent Drug

    CLOXACILLIN
    Oxacillin EP Impurity D

    Synonym

    (4S)-5,5-dimethyl-2-((5-methyl-3-phenylisoxazole-4-carboxamido)methyl)thiazolidine-4-carboxylic acid

    Molecular Formula

    C18H21N3O4S

    Molecular Weight

    375.44

    Catalogue Number

    AR-C03372

    Parent Drug

    CLOXACILLIN

    CAS Number

    1642559-63-4
    Oxacillin EP Impurity B Disodium Salt (Mixture of Diastereomers)

    Synonym

    sodium (4S)-2-(carboxylato(5-methyl-3-phenylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylate

    Molecular Formula

    C19H19N3O6S. 2 Na

    Molecular Weight

    417.44 2 22.99

    Catalogue Number

    AR-C03371

    Parent Drug

    CLOXACILLIN
    Oxacillin Impurity F (Thioxacillin)

    Synonym

    (2R,5R,6R)-3,3-dimethyl-6-(5-methyl-3-phenylisoxazole-4-carboxamido)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carbothioic O-acid

    Molecular Formula

    C19H18N3O5S

    Molecular Weight

    400.44

    Catalogue Number

    AR-C03370

    Parent Drug

    CLOXACILLIN
    Oxacillin Impurity H

    Synonym

    (3S,7R,7aR)-2,2-dimethyl-5-(5-methyl-3-phenylisoxazol-4-yl)-2,3,7,7a-tetrahydroimidazo[5,1-b]thiazole-3,7-dicarboxylic acid

    Molecular Formula

    C19H19N3O5S

    Molecular Weight

    401.44

    Catalogue Number

    AR-C03369

    Parent Drug

    CLOXACILLIN
    Oxacillin Impurity J (6-APA Dimer Ozolamide)

    Synonym

    (2S,5R,6R)-6-((R)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)-2-(5-methyl-3-phenylisoxazole-4-carboxamido)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C27H29N5O8S2

    Molecular Weight

    615.69

    Catalogue Number

    AR-C03368

    Parent Drug

    CLOXACILLIN
    Flucloxacillin Impurity E

    Synonym

    (2S,5R,6R)-6-((2S,5R,6R)-6-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C27H27ClFN5O7S2

    Molecular Weight

    652.12

    Catalogue Number

    AR-C03367

    Parent Drug

    CLOXACILLIN
    Cloxacillin Sodium EP Impurity E

    Synonym

    (2S,5R,6R)-6-((2S,5R,6R)-6-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C27H27ClN5O7S2

    Molecular Weight

    633.13

    Catalogue Number

    AR-C03366

    Parent Drug

    CLOXACILLIN

    CAS Number

    18704-55-7
    Cloxacillin EP Impurity B (Mixture of Diastereomers)

    Synonym

    (4S)-2-((3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C18H20ClN3O4S

    Molecular Weight

    409.89

    Catalogue Number

    AR-C03365

    Parent Drug

    CLOXACILLIN

    CAS Number

    1642559-64-5
    Cloxacillin EP Impurity A

    Synonym

    (4S)-2-(carboxy(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C19H20ClN3O6S

    Molecular Weight

    453.89

    Catalogue Number

    AR-C03364

    Parent Drug

    CLOXACILLIN
    Cloxacillin Sodium Salt

    Synonym

    sodium (2S,5R,6R)-6-(3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

    Molecular Formula

    C19H17ClN3O5S. Na

    Molecular Weight

    434.88 22.99

    Catalogue Number

    AR-C03363

    Parent Drug

    CLOXACILLIN

    CAS Number

    642-78-4
    5-Hydroxymethyl Flucloxacillin

    Synonym

    (2S,5R,6R)-6-(3-(2-chloro-6-fluorophenyl)-5-(hydroxymethyl)isoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C19H16ClFN3O6S Na

    Molecular Weight

    468.87 22.99

    Catalogue Number

    AR-C03362

    Parent Drug

    CLOXACILLIN

    CAS Number

    75524-31-1
    Dicloxacillin Impurity D

    Synonym

    3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxylic acid

    Molecular Formula

    C11H7Cl2NO3

    Molecular Weight

    272.09

    Catalogue Number

    AR-C03361

    Parent Drug

    CLOXACILLIN

    CAS Number

    3919-76-4
    Dicloxacillin Sodium EP Impurity B (Mixture of Diastereomers)

    Synonym

    (4R)-2-((3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C18H19Cl2N3O4S

    Molecular Weight

    444.33

    Catalogue Number

    AR-C03360

    Parent Drug

    CLOXACILLIN
    (2R,4S)-2-((1R)-carboxy(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-3-(2-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)acetyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Synonym

    (2R,4S)-2-((1R)-carboxy(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-3-(2-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)acetyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C32H27Cl2F2N5O9S

    Molecular Weight

    766.57

    Catalogue Number

    AR-C03359

    Parent Drug

    CLOXACILLIN
    sodium (2R,4S)-3-acetyl-2-((1R)-carboxylato(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylate

    Synonym

    sodium (2R,4S)-3-acetyl-2-((1R)-carboxylato(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylate

    Molecular Formula

    C21H19ClFN3O7S. 2 Na

    Molecular Weight

    511.92 2 22.99

    Catalogue Number

    AR-C03358

    Parent Drug

    CLOXACILLIN
    Dicloxacillin Sodium EP Impurity A HCl (Mixture of Diastereomers)

    Synonym

    2-(carboxy(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid hydrochloride

    Molecular Formula

    C19H19Cl2N3O6S. HCl

    Molecular Weight

    488.35 36.46

    Catalogue Number

    AR-C03357

    Parent Drug

    CLOXACILLIN
    DCMICAA Adduct of Dicloxacillin peniclloic acids

    Synonym

    (4S)-2-(carboxy(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-3-(2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)-2-oxoethyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C32H27Cl4N5O9S

    Molecular Weight

    799.48

    Catalogue Number

    AR-C03356

    Parent Drug

    CLOXACILLIN
    Dicloxacillin Degradation Impurity (DCMICAA)

    Synonym

    2-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)acetic acid

    Molecular Formula

    C13H10Cl2N2O4

    Molecular Weight

    329.14

    Catalogue Number

    AR-C03355

    Parent Drug

    CLOXACILLIN

    CAS Number

    883225-99-8
    Acetylated Penicilloic Acid Disodium Salt

    Synonym

    sodium 3-acetyl-2-(carboxylato(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylate

    Molecular Formula

    C21H19Cl2N3O7S. 2 Na

    Molecular Weight

    528.37 2 22.99

    Catalogue Number

    AR-C03354

    Parent Drug

    CLOXACILLIN
    Flucloxacillin Sodium Impurity B

    Synonym

    (4S)-2-((3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid

    Molecular Formula

    C18H19ClFN3O4S

    Molecular Weight

    427.89

    Catalogue Number

    AR-C03353

    Parent Drug

    CLOXACILLIN

    CAS Number

    N/A
    Flucloxacillin Sodium

    Synonym

    sodium (2S,5R,6R)-6-(3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

    Molecular Formula

    C19H16ClFN3NaO5S

    Molecular Weight

    475.86

    Catalogue Number

    AR-C03352

    Parent Drug

    CLOXACILLIN

    CAS Number

    1847-24-1
    Dicloxacillin-13C4 Sodium Salt

    Molecular Formula

    13C4 C15H16Cl2N3O5S. Na

    Molecular Weight

    473.28 22.99

    Catalogue Number

    AR-C03351

    Parent Drug

    CLOXACILLIN

    CAS Number

    2140264-78-2 (free acid)
    Dicloxacillin

    Synonym

    (2S,5R,6R)-6-(3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

    Molecular Formula

    C19H17Cl2N3O5S

    Molecular Weight

    470.33

    Catalogue Number

    AR-C03350

    Parent Drug

    CLOXACILLIN

    CAS Number

    3116-76-5