metronidazole and its Impurities

A nitroimidazole class of drug, Metronidazole is an antibiotic and antiprotozoal medication. It works by inhibiting the nucleic acid synthesis by disrupting the DNA of microbial cells. Metronidazole is used in the treatment of pelvic inflammatory disease, endocarditis, and bacterial vaginosis. Reference standards of Metronidazole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 51 results for metronidazole Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 13 38000

Metronidazole

Metronidazole

  • Catalogue No.:PA 13 38000

  • CAS :

    443-48-1

  • Molecular Formula : C6H9N3O3

  • Molecular Weight : 171.15

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38010

Metronidazole - Impurity A

2-Methyl-4-nitroimidazole

  • Catalogue No.:PA 13 38010

  • CAS :

    696-23-1

  • Molecular Formula : C4H5N3O2

  • Molecular Weight : 127.10

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38020

Metronidazole - Impurity B

4-Nitroimidazole

  • Catalogue No.:PA 13 38020

  • CAS :

    3034-38-6

  • Molecular Formula : C3H3N3O2

  • Molecular Weight : 113.07

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38030

Metronidazole - Impurity C

2-(4-Nitro-1H-imidazol-1-yl)-ethanol

  • Catalogue No.:PA 13 38030

  • CAS :

    5006-69-9

  • Molecular Formula : C5H7N3O3

  • Molecular Weight : 157.13

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38040

Metronidazole - Impurity D

2-(5-Nitro-1H-imidazol-1-yl)-ethanol

  • Catalogue No.:PA 13 38040

  • CAS :

    5006-68-8

  • Molecular Formula : C5H7N3O3

  • Molecular Weight : 157.13

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38050

Metronidazole - Impurity E

2-(2-Methyl-4-nitro-1Himidazol-1-yl)ethanol

  • Catalogue No.:PA 13 38050

  • CAS :

    705-19-1

  • Molecular Formula : C6H9N3O3

  • Molecular Weight : 171.15

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38060

Metronidazole - Impurity F

O-Hydroxyethyl Metronidazole

  • Catalogue No.:PA 13 38060

  • CAS :

    16156-94-8

  • Molecular Formula : C8H13N3O4

  • Molecular Weight : 215.21

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38070

Metronidazole - Impurity G

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)acetic Acid

  • Catalogue No.:PA 13 38070

  • CAS :

    1010-93-1

  • Molecular Formula : C6H7N3O4

  • Molecular Weight : 185.14

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38510

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl Formate

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl Formate

  • Catalogue No.:PA 13 38510

  • CAS :

    35703-05-0

  • Molecular Formula : C7H9N3O4

  • Molecular Weight : 199.16

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38520

Bis(1-methyl-4-nitro-1H-imidazol-5-yl)sulfane

Bis(1-methyl-4-nitro-1H-imidazol-5-yl)sulfane

  • Catalogue No.:PA 13 38520

  • CAS :

    13755-68-5

  • Molecular Formula : C8H8N6O4S

  • Molecular Weight : 284.25

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38530

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-yl formate

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-yl formate

  • Catalogue No.:PA 13 38530

  • CAS :

    NA

  • Molecular Formula : C8H11N3O4

  • Molecular Weight : 213.19

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38540

1-Methyl-4-nitroimidazole

1-Methyl-4-nitroimidazole

  • Catalogue No.:PA 13 38540

  • CAS :

    3034-41-1

  • Molecular Formula : C4H5N3O2

  • Molecular Weight : 127.1

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38550

2-(2-Methyl-4-nitro-1H-imidazol-1-yl)ethyl Benzoate

2-(2-Methyl-4-nitro-1H-imidazol-1-yl)ethyl Benzoate

  • Catalogue No.:PA 13 38550

  • CAS :

    87009-72-1

  • Molecular Formula : C13H13N3O4

  • Molecular Weight : 275.26

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Drug Reference Standards & Impurity Synthesis in India
PA STI 065050

Metronidazole-d4

Metronidazole-d4

  • Catalogue No.:PA STI 065050

  • CAS :

    1261392-47-5

  • Molecular Formula : C6H5D4N3O3

  • Molecular Weight : 175.18

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Drug Reference Standards & Impurity Synthesis in India
PA STI 050290

Hydroxy Metronidazole-d4

Hydroxy Metronidazole-d4

  • Catalogue No.:PA STI 050290

  • CAS :

    1215071-08-1

  • Molecular Formula : C6H5D4N3O4

  • Molecular Weight : 191.18

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Drug Reference Standards & Impurity Synthesis in India
PA ICRS0350

Metronidazole (ICRS0350)

Metronidazole (ICRS0350)

  • Catalogue No.:PA ICRS0350

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 37 12

Metronidazole Benzoate (IPRS/37/12)-from IPC

Metronidazole Benzoate (IPRS/37/12)-from IPC

  • Catalogue No.:PA IPIPRS 37 12

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 42 14

Metronidazole (IPRS/42/14)-from IPC

Metronidazole (IPRS/42/14)-from IPC

  • Catalogue No.:PA IPIPRS 42 14

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPM1850000

Metronidazole (M1850000)

Metronidazole (M1850000)

  • Catalogue No.:PA EPM1850000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPM1851000

Metronidazole benzoate (M1851000)

Metronidazole benzoate (M1851000)

  • Catalogue No.:PA EPM1851000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000069

Metronidazole benzoate - reference spectrum (Y0000069)

Metronidazole benzoate - reference spectrum (Y0000069)

  • Catalogue No.:PA EPY0000069

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000087

Metronidazole impurity A (Y0000087)

Metronidazole impurity A (Y0000087)

  • Catalogue No.:PA EPY0000087

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1441200

Metolazone (1441200)

Metolazone (1441200)

  • Catalogue No.:PA USP1441200

  • CAS :

    17560-51-9

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1442009

Metronidazole (1442009)

Metronidazole (1442009)

  • Catalogue No.:PA USP1442009

  • CAS :

    443-48-1

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1442100

Metronidazole Benzoate (1442100)

Metronidazole Benzoate (1442100)

  • Catalogue No.:PA USP1442100

  • CAS :

    13182-89-3

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP603RB

metronidazole (603RB)

metronidazole (603RB)

  • Catalogue No.:PA BP603RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP735RB

metronidazole benzoate (735RB)

metronidazole benzoate (735RB)

  • Catalogue No.:PA BP735RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38570

N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide

N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide

  • Catalogue No.:PA 13 38570

  • CAS :

    110578-73-9

  • Molecular Formula : C6H9N3O3

  • Molecular Weight : 171.16

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38580

1-Hydroxyethyl-2-methyl-4-hydroxyimino-5-oxoimidazole

1-Hydroxyethyl-2-methyl-4-hydroxyimino-5-oxoimidazole

  • Catalogue No.:PA 13 38580

  • CAS :

    113385-77-6

  • Molecular Formula : C6H9N3O3

  • Molecular Weight : 171.16

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381000

Metronidazole B-D-Glucuronide

Metronidazole B-D-Glucuronide

  • Catalogue No.:PA 13 0381000

  • CAS :

    100495-98-5

  • Molecular Formula : C12H17N3O9

  • Molecular Weight : 347.28

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381001

2-Methyl-4-nitro-1-nitroso-1H-imidazole

2-Methyl-4-nitro-1-nitroso-1H-imidazole

  • Catalogue No.:PA 13 0381001

  • CAS :

    NA

  • Molecular Formula : C4H4N4O3

  • Molecular Weight : 156.1

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381002

2-Methyl-4-nitro-1-nitroso-1H-imidazole

2-Methyl-4-nitro-1-nitroso-1H-imidazole

  • Catalogue No.:PA 13 0381002

  • CAS :

    NA

  • Molecular Formula : C4H4N4O3

  • Molecular Weight : 156.1

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381003

1,4-Dinitroimidazole

1,4-Dinitroimidazole

  • Catalogue No.:PA 13 0381003

  • CAS :

    19182-81-1

  • Molecular Formula : C3H2N4O4

  • Molecular Weight : 158.07

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381004

5-Nitro-1-nitroso-1H-imidazole

5-Nitro-1-nitroso-1H-imidazole

  • Catalogue No.:PA 13 0381004

  • CAS :

    NA

  • Molecular Formula : C3H2N4O3

  • Molecular Weight : 142.07

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381005

2-Methyl-1-nitroso-1H-imidazole

2-Methyl-1-nitroso-1H-imidazole

  • Catalogue No.:PA 13 0381005

  • CAS :

    NA

  • Molecular Formula : C4H5N3O

  • Molecular Weight : 111.1

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089004

Hydroxy Metronidazole-d2

Hydroxy Metronidazole-d2

  • Catalogue No.:PA STI 089004

  • CAS :

    NA

  • Molecular Formula : C6H7D2N3O4

  • Molecular Weight : 189.17

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089002

Metronidazole-D3

Metronidazole-D3

  • Catalogue No.:PA STI 089002

  • CAS :

    83413-09-6

  • Molecular Formula : C6H6D3N3O3

  • Molecular Weight : 174.17

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381006

5-Hydroxy-2-methyl-1H-imidazole-1-ethanol

5-Hydroxy-2-methyl-1H-imidazole-1-ethanol

  • Catalogue No.:PA 13 0381006

  • CAS :

    138169-63-8

  • Molecular Formula : C6H10N2O2

  • Molecular Weight : 142.16

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381007

N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-methylnitrous amide

N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-methylnitrous amide

  • Catalogue No.:PA 13 0381007

  • CAS :

    73829-38-6

  • Molecular Formula : C12H14N4O2

  • Molecular Weight : 246.27

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Drug Reference Standards & Impurity Synthesis in India
PA 13 38560

Hydroxy Metronidazole

Hydroxy Metronidazole

  • Catalogue No.:PA 13 38560

  • CAS :

    4812-40-2

  • Molecular Formula : C6H9N3O4

  • Molecular Weight : 187.16

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Drug Reference Standards & Impurity Synthesis in India
PA IMPM038

2-Methyl-4-nitroimidazole (Metronidazole Impurity A) (IMPM038)

2-Methyl-4-nitroimidazole (Metronidazole Impurity A) (IMPM038)

  • Catalogue No.:PA IMPM038

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089386

Metronidazole-13C2,15N2

Metronidazole-13C2,15N2

  • Catalogue No.:PA STI 089386

  • CAS :

    1173020-03-5

  • Molecular Formula : C413C2H9N15N2O3

  • Molecular Weight : 175.13

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Drug Reference Standards & Impurity Synthesis in India
PA IPRSM043

Metronidazole (IPRSM043)

Metronidazole (IPRSM043)

  • Catalogue No.:PA IPRSM043

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381009

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 2-chlorobenzoate

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 2-chlorobenzoate

  • Catalogue No.:PA 13 0381009

  • CAS :

    13182-90-6

  • Molecular Formula : C13H12ClN3O4

  • Molecular Weight : 309.71

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381010

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 3-chlorobenzoate

2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 3-chlorobenzoate

  • Catalogue No.:PA 13 0381010

  • CAS :

    102274-41-9

  • Molecular Formula : C13H12ClN3O4

  • Molecular Weight : 309.71

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381011

Metronidazole 4-chlorobenzoate

Metronidazole 4-chlorobenzoate

  • Catalogue No.:PA 13 0381011

  • CAS :

    102274-40-8

  • Molecular Formula : C13H12ClN3O4

  • Molecular Weight : 309.71

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Drug Reference Standards & Impurity Synthesis in India
PA 13 0381012

Metronidazole 2,4-dichlorobenzoate

Metronidazole 2,4-dichlorobenzoate

  • Catalogue No.:PA 13 0381012

  • CAS :

    102274-43-1

  • Molecular Formula : C13H11Cl2N3O4

  • Molecular Weight : 344.15

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Drug Reference Standards & Impurity Synthesis in India
PAI 13 038001

1-(2-((tert-Butyldimethylsilyl)oxy)ethyl)-4-nitro-1H-imidazole

1-(2-((tert-Butyldimethylsilyl)oxy)ethyl)-4-nitro-1H-imidazole

  • Catalogue No.:PAI 13 038001

  • CAS :

    2204249-70-5

  • Molecular Formula : C11H21N3O3Si

  • Molecular Weight : 271.39

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Drug Reference Standards & Impurity Synthesis in India
PAI 13 038002

1-(2-((tert-Butyldimethylsilyl)oxy)ethyl)-5-nitro-1H-imidazole

1-(2-((tert-Butyldimethylsilyl)oxy)ethyl)-5-nitro-1H-imidazole

  • Catalogue No.:PAI 13 038002

  • CAS :

    2204258-28-4

  • Molecular Formula : C11H21N3O3Si

  • Molecular Weight : 271.39

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Drug Reference Standards & Impurity Synthesis in India
PA BSC 03813799

5-Nitroimidazole (BSC)

5-Nitroimidazole

  • Catalogue No.:PA BSC 03813799

  • CAS :

    3034-38-6

  • Molecular Formula : C3H3N3O2

  • Molecular Weight : 113.07

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089997

Isometronidazole-D4

Isometronidazole-D4

  • Catalogue No.:PA STI 089997

  • CAS :

    2469037-64-5

  • Molecular Formula : C6H5D4N3O3

  • Molecular Weight : 175.18

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