caffeine and its Impurities

Caffeine is a central nervous system stimulant of the methylxanthine class. It is used to restore mental alertness or wakefulness during fatigue or drowsiness.. Reference standards of Caffeine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 49 results for caffeine Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 03 04000

Caffeine

Caffeine

  • Catalogue No.:PA 03 04000

  • CAS :

    58-08-2

  • Molecular Formula : C8H10N4O2

  • Molecular Weight : 194.19

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04010

Caffeine - Impurity A

Theophylline

  • Catalogue No.:PA 03 04010

  • CAS :

    58-55-9

  • Molecular Formula : C7H8N4O2

  • Molecular Weight : 180.16

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04020

Caffeine - Impurity B

N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide

  • Catalogue No.:PA 03 04020

  • CAS :

    7597-60-6

  • Molecular Formula : C7H10N4O3

  • Molecular Weight : 198.18

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04030

Caffeine - Impurity C

Isocaffeine

  • Catalogue No.:PA 03 04030

  • CAS :

    519-32-4

  • Molecular Formula : C8H10N4O2

  • Molecular Weight : 194.19

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04040

Caffeine - Impurity D

Theobromine

  • Catalogue No.:PA 03 04040

  • CAS :

    83-67-0

  • Molecular Formula : C7H8N4O2

  • Molecular Weight : 180.16

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04050

Caffeine - Impurity E

Caffeidine

  • Catalogue No.:PA 03 04050

  • CAS :

    20041-90-1

  • Molecular Formula : C7H12N4O

  • Molecular Weight : 168.20

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04051

Caffeine - Impurity E (Nitrate Salt)

Caffeidine Nitrate

  • Catalogue No.:PA 03 04051

  • CAS :

    209725-34-8

  • Molecular Formula : C7H13N5O4

  • Molecular Weight : 231.21

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04060

Caffeine - Impurity F

Paraxanthine

  • Catalogue No.:PA 03 04060

  • CAS :

    611-59-6

  • Molecular Formula : C7H8N4O2

  • Molecular Weight : 180.17

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04510

Sodium 4-[N-Methyl-N-(N-Methylaminocarbonyl)amino]-1-methylimidazole-5-Carboxylate

Sodium 4-[N-Methyl-N-(N-Methylaminocarbonyl)amino]-1-methylimidazole-5-Carboxylate

  • Catalogue No.:PA 03 04510

  • CAS :

    NA

  • Molecular Formula : C8H11N4NaO3

  • Molecular Weight : 234.19

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04520

N-(6-Amino-1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)-N-methylformamide

N-(6-Amino-1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)-N-methylformamide

  • Catalogue No.:PA 03 04520

  • CAS :

    33130-55-1

  • Molecular Formula : C8H12N4O3

  • Molecular Weight : 212.21

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Drug Reference Standards & Impurity Synthesis in India
PA STI 064490

7-Methyl-3-methyluric Acid-d3

7-Methyl-3-methyluric Acid-d3

  • Catalogue No.:PA STI 064490

  • CAS :

    383160-11-0

  • Molecular Formula : C7H5D3N4O3

  • Molecular Weight : 199.18

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Drug Reference Standards & Impurity Synthesis in India
PA STI 064820

3-Methyluric Acid-d3

3-Methyluric Acid-d3

  • Catalogue No.:PA STI 064820

  • CAS :

    NA

  • Molecular Formula : C6H3D3N4O3

  • Molecular Weight : 185.16

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Drug Reference Standards & Impurity Synthesis in India
PA STI 006110

4-Amino-5-[(ethoxycarbonyl)amino]-1-methyl-d3 Uracil

4-Amino-5-[(ethoxycarbonyl)amino]-1-methyl-d3 Uracil

  • Catalogue No.:PA STI 006110

  • CAS :

    1794768-19-6

  • Molecular Formula : C8H9D3N4O4

  • Molecular Weight : 231.22

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Drug Reference Standards & Impurity Synthesis in India
PA STI 016930

Caffeine-d9

Caffeine-d9

  • Catalogue No.:PA STI 016930

  • CAS :

    72238-85-8

  • Molecular Formula : C8HD9N4O2

  • Molecular Weight : 203.25

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Drug Reference Standards & Impurity Synthesis in India
PA STI 016940

Caffeidine-d9

Caffeidine-d9

  • Catalogue No.:PA STI 016940

  • CAS :

    NA

  • Molecular Formula : C7H3D9N4O

  • Molecular Weight : 177.25

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Drug Reference Standards & Impurity Synthesis in India
PA STI 035190

1,7-Dimethyluric Acid-d3

1,7-Dimethyluric Acid-d3

  • Catalogue No.:PA STI 035190

  • CAS :

    1189713-08-3

  • Molecular Formula : C7H5D3N4O3

  • Molecular Weight : 199.18

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Drug Reference Standards & Impurity Synthesis in India
PA STI 053750

Isocaffeine-d3

Isocaffeine-d3

  • Catalogue No.:PA STI 053750

  • CAS :

    NA

  • Molecular Formula : C8H7D3N4O2

  • Molecular Weight : 197.21

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Drug Reference Standards & Impurity Synthesis in India
PA STI 071470

Paraxanthine-1-methyl-d3

Paraxanthine-1-methyl-d3

  • Catalogue No.:PA STI 071470

  • CAS :

    188297-90-7

  • Molecular Formula : C7H5D3N4O2

  • Molecular Weight : 183.18

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Drug Reference Standards & Impurity Synthesis in India
PA STI 071480

Paraxanthine-d3

Paraxanthine-d3

  • Catalogue No.:PA STI 071480

  • CAS :

    65566-70-3

  • Molecular Formula : C7H5D3N4O2

  • Molecular Weight : 183.18

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Drug Reference Standards & Impurity Synthesis in India
PA STI 085520

1,3,7-Trimethyluric Acid-d3

1,3,7-Trimethyluric Acid-d3

  • Catalogue No.:PA STI 085520

  • CAS :

    188297-95-2

  • Molecular Formula : C8H7D3N4O3

  • Molecular Weight : 213.21

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Drug Reference Standards & Impurity Synthesis in India
PA USP1085003

Caffeine (1085003)

Caffeine (1085003)

  • Catalogue No.:PA USP1085003

  • CAS :

    58-08-2

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1086006

Caffeine Melting Point Standard (Approximately 236 degrees) (1086006)

Caffeine Melting Point Standard (Approximately 236 degrees) (1086006)

  • Catalogue No.:PA USP1086006

  • CAS :

    58-08-2

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA ICRS0235

Caffeine (237°C) (ICRS0235)

Caffeine (237°C) (ICRS0235)

  • Catalogue No.:PA ICRS0235

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP766RB

caffeine (766RB)

caffeine (766RB)

  • Catalogue No.:PA BP766RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPC0100000

Caffeine (C0100000)

Caffeine (C0100000)

  • Catalogue No.:PA EPC0100000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000787

Caffeine for system suitability (Y0000787)

Caffeine for system suitability (Y0000787)

  • Catalogue No.:PA EPY0000787

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA ICRS0234

Caffeine (ICRS0234)

Caffeine (ICRS0234)

  • Catalogue No.:PA ICRS0234

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA JP0142

Melting Point Standard-Caffeine MPf 237.5 degrees (JP 0142)

Melting Point Standard-Caffeine MPf 237.5 degrees (JP 0142)

  • Catalogue No.:PA JP0142

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA JP0025

Caffeine (JP 0025)

Caffeine (JP 0025)

  • Catalogue No.:PA JP0025

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 122 14

Caffeine (IPRS/122/14)-from IPC

Caffeine (IPRS/122/14)-from IPC

  • Catalogue No.:PA IPIPRS 122 14

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04530

6-Amino-5-(N-formyl-N-methyl)-3-methyluracil

6-Amino-5-(N-formyl-N-methyl)-3-methyluracil

  • Catalogue No.:PA 03 04530

  • CAS :

    55782-76-8

  • Molecular Formula : C7H10N4O3

  • Molecular Weight : 198.18

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Drug Reference Standards & Impurity Synthesis in India
PA 03 04052

Caffeine - Impurity E (Hydrochloride Salt)

Caffeidine Hydrochloride

  • Catalogue No.:PA 03 04052

  • CAS :

    107605-95-8

  • Molecular Formula : C7H13ClN4O

  • Molecular Weight : 204.66

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041000

1,9-Dimethyluric Acid

1,9-Dimethyluric Acid

  • Catalogue No.:PA 03 0041000

  • CAS :

    55441-62-8

  • Molecular Formula : C7H8N4O3

  • Molecular Weight : 196.17

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041001

7-Methyl-3-methyluric Acid

7-Methyl-3-methyluric Acid

  • Catalogue No.:PA 03 0041001

  • CAS :

    13087-49-5

  • Molecular Formula : C7H8N4O3

  • Molecular Weight : 196.17

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041002

8-Bromo-1,3,7-trimethylxanthine

8-Bromo-1,3,7-trimethylxanthine

  • Catalogue No.:PA 03 0041002

  • CAS :

    10381-82-5

  • Molecular Formula : C8H9BrN4O2

  • Molecular Weight : 273.09

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041003

Caffeidine Acid

Caffeidine Acid

  • Catalogue No.:PA 03 0041003

  • CAS :

    54536-15-1

  • Molecular Formula : C8H12N4O3

  • Molecular Weight : 212.21

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088839

Caffeine-d3 (1-methyl-d3)

Caffeine-d3 (1-methyl-d3)

  • Catalogue No.:PA STI 088839

  • CAS :

    26351-03-1

  • Molecular Formula : C8H7D3N4O2

  • Molecular Weight : 197.21

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041004

5-Acetylamino-6-amino-3-methyluracil Hydrate

5-Acetylamino-6-amino-3-methyluracil Hydrate

  • Catalogue No.:PA 03 0041004

  • CAS :

    1196153-01-1

  • Molecular Formula : C7H10N4O4

  • Molecular Weight : 214.18

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 004003

2-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,7-dimethyl-6-oxo-6,9-dihydro-1H-purin-7-ium Methyl Sulfate

2-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,7-dimethyl-6-oxo-6,9-dihydro-1H-purin-7-ium Methyl Sulfate

  • Catalogue No.:PAI 03 004003

  • CAS :

    78990-20-2

  • Molecular Formula : C13H21N5O9S

  • Molecular Weight : 423.4

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 004002

2-Amino-1,7-dimethyl-1,7-dihydro-6H-purin-6-one

2-Amino-1,7-dimethyl-1,7-dihydro-6H-purin-6-one

  • Catalogue No.:PAI 03 004002

  • CAS :

    26758-00-9

  • Molecular Formula : C7H9N5O

  • Molecular Weight : 179.18

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Drug Reference Standards & Impurity Synthesis in India
PAI 03 004001

N1-Methylguanosine

N1-Methylguanosine

  • Catalogue No.:PAI 03 004001

  • CAS :

    2140-65-0

  • Molecular Formula : C11H15N5O5

  • Molecular Weight : 297.27

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041005

5-Acetylamino-6-amino-3-methyluracil

5-Acetylamino-6-amino-3-methyluracil

  • Catalogue No.:PA 03 0041005

  • CAS :

    19893-78-8

  • Molecular Formula : C7H10N4O3

  • Molecular Weight : 198.18

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Drug Reference Standards & Impurity Synthesis in India
PA IPRSC050

Caffeine (IPRSC050)

Caffeine (IPRSC050)

  • Catalogue No.:PA IPRSC050

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089518

Caffeine-13C3

Caffeine-13C3

  • Catalogue No.:PA STI 089518

  • CAS :

    78072-66-9

  • Molecular Formula : C513C3H10N4O2

  • Molecular Weight : 197.17

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041006

N,1-Dimethyl-4-(methyl(nitroso)amino)-1H-imidazole-5-carboxamide

N,1-Dimethyl-4-(methyl(nitroso)amino)-1H-imidazole-5-carboxamide

  • Catalogue No.:PA 03 0041006

  • CAS :

    145438-96-6

  • Molecular Formula : C7H11N5O2

  • Molecular Weight : 197.2

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041007

N,1-Dimethyl-4-(methyl(nitroso)amino)-N-nitroso-1H-imidazole-5-carboxamide

N,1-Dimethyl-4-(methyl(nitroso)amino)-N-nitroso-1H-imidazole-5-carboxamide

  • Catalogue No.:PA 03 0041007

  • CAS :

    145438-97-7

  • Molecular Formula : C7H10N6O3

  • Molecular Weight : 226.2

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Drug Reference Standards & Impurity Synthesis in India
PA 03 0041008

6-Amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione

6-Amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione

  • Catalogue No.:PA 03 0041008

  • CAS :

    6642-31-5

  • Molecular Formula : C6H9N3O2

  • Molecular Weight : 155.16

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Drug Reference Standards & Impurity Synthesis in India
PA WSM 00403004

Caffeine (WSM)

Caffeine (WSM)

  • Catalogue No.:PA WSM 00403004

  • CAS :

    58-08-2

  • Molecular Formula : C8H10N4O2

  • Molecular Weight : 194.19

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Drug Reference Standards & Impurity Synthesis in India
PA BSC 00403718

1,7-Dimethylxanthine (BSC)

1,7-Dimethylxanthine

  • Catalogue No.:PA BSC 00403718

  • CAS :

    611-59-6

  • Molecular Formula : C7H8N4O2

  • Molecular Weight : 180.17

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