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
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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PA USP1085003

Caffeine (1085003)

Caffeine (1085003)

  • Catalogue No.:PA USP1085003

  • CAS :

    58-08-2

  • Molecular Formula : NA

  • Molecular Weight : NA

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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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PA ICRS0235

Caffeine (237°C) (ICRS0235)

  • Catalogue No.:PA ICRS0235

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

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PA BP766RB

caffeine (766RB)

caffeine (766RB)

  • Catalogue No.:PA BP766RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA EPC0100000

Caffeine (C0100000)

Caffeine (C0100000)

  • Catalogue No.:PA EPC0100000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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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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PA ICRS0234

Caffeine (ICRS0234)

  • Catalogue No.:PA ICRS0234

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

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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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PA JP0025

Caffeine (JP 0025)

Caffeine (JP 0025)

  • Catalogue No.:PA JP0025

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA IPIPRS 122 14

Caffeine (IPRS/122/14)-from IPC

  • Catalogue No.:PA IPIPRS 122 14

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

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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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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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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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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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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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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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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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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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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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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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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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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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PA IPRSC050

Caffeine (IPRSC050)

Caffeine (IPRSC050)

  • Catalogue No.:PA IPRSC050

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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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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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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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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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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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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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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CPHI INDIA- 28, 30 November