Active pharmaceutical ingredient (API) impurities for research

All products contained in this category are intended for laboratory use only, and are not meant for human consumption.

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Product data	Purity	Price range	Estimated delivery
4-Nitrobenzoic Acid REF: 45-1466572CAS: 62-23-7	- - -	1,477.00 €	Fri 27 Dec 24
Acitretin Related Compound A ((2Z,4E,6E,8E)-9-(4-Methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoic acid) REF: 45-1011018CAS: 69427-46-9	- - -	1,390.00 €	Fri 27 Dec 24
Ibuprofen Related Compound C (4-isobutylacetophenone) REF: 45-1335541CAS: 38861-78-8	- - -	1,371.00 €	Fri 27 Dec 24
Entacapone Related Compound A ((Z)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethylacrylamide) REF: 45-1235944CAS: 145195-63-7	- - -	1,371.00 €	Fri 27 Dec 24
Granisetron Related Compound C (N-[(1R,3r,5S)-9-azabicyclo[3.3.1]non-3-yl]-1-methyl-1H-indazole-3-carboxamide hydrochloride) REF: 45-1298139CAS: 141136-01-8	- - -	1,495.00 €	Fri 27 Dec 24
Econazole Related Compound C (1-(4-Chlorobenzyl)-3-[(2RS)-2-[(4-chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]imidazolium chloride) REF: 45-1231852CAS: 57265-33-5	- - -	1,552.00 €	Fri 27 Dec 24
Lansoprazole Related Compound B (2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-pyridin-2-yl]methyl]sulfanyl]-1H-benzimidazole monohydrate) REF: 45-1356931CAS: 1288338-69-1	- - -	1,555.00 €	Fri 27 Dec 24
Timolol Related Compound A ((R)-1-(tert-Butylamino)-3-(4-morpholino-1,2,5-thiadiazol-3-yloxy)propan-2-ol maleate) REF: 45-1667381CAS: 26839-77-0	- - -	1,407.00 €	Fri 27 Dec 24
Nicardipine Related Compound C (Dimethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) REF: 45-1463268CAS: 21881-77-6	- - -	1,222.00 €	Fri 27 Dec 24
Triamterene Related Compound A (2,4,6-triamino-5-nitrosopyrimidine) REF: 45-1680018CAS: 1006-23-1	- - -	1,477.00 €	Fri 27 Dec 24
Spironolactone Epimer Mixture (7-Epispironolactone approximately 56% and Spironolactone approximately 39% mixture) REF: 45-1619051	- - -	1,442.00 €	Fri 27 Dec 24
Verapamil Related Compound B (4-[(3,4-Dimethoxyphenethyl)(methyl)amino]-2-(3,4-dimethoxyphenyl)-2-isopropylbutanenitrile hydrochloride) REF: 45-1711406CAS: 1794-55-4	- - -	1,477.00 €	Fri 27 Dec 24
Voriconazole Related Compound A ((2RS, 3RS)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) REF: 45-1718019CAS: 137330-52-0	- - -	1,371.00 €	Fri 27 Dec 24
Orphenadrine Related Compound B (N-Ethyl-N,N-dimethyl-2-[phenyl(o-tolyl)methoxy]ethanaminium chloride; also known as N-Ethyl-N,N-dimethyl-2-[phenyl(2-tolyl)methoxy]ethanaminium chloride) REF: 45-1479020CAS: 93940-17-1	- - -	1,552.00 €	Fri 27 Dec 24
Zileuton Related Compound C (1-(Benzo[b]thiophen-2-yl)ethan-1-one) REF: 45-1724689CAS: 22720-75-8	- - -	1,357.00 €	Fri 27 Dec 24
Ketorolac Related Compound C (5-benzoyl-2,3-dihydro-1H-pyrrolizin-1-one) REF: 45-1356337CAS: 113502-52-6	- - -	1,477.00 €	Fri 27 Dec 24
Irinotecan Related Compound A ((S)-4-ethyl-4,9-dihydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione) REF: 45-1347610CAS: 19685-09-7	- - -	1,477.00 €	Fri 27 Dec 24
Dermatan Sulfate REF: 45-1171455CAS: 54328-33-5	- - -	1,583.00 €	Fri 27 Dec 24
Atenolol Related Compound G (2-{4-[2-Hydroxy-3-(isopropylamino)propoxy]phenyl}acetic acid) REF: 45-1044378CAS: 56392-14-4	- - -	1,282.00 €	Fri 27 Dec 24
Diphenhydramine N-Oxide (2-(benzhydryloxy)-N,N-dimethylethan-1-amine oxide hydrochloride) REF: 45-1218050CAS: 13168-00-8	- - -	1,477.00 €	Fri 27 Dec 24

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4-Nitrobenzoic Acid

CAS:62-23-7

Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacid and their derivatives not elsewhere specified or …

Formula:

C₇H₅NO₄

Color and Shape:

Powder

Molecular weight:

167.02186

Ref: 45-1466572

Estimated delivery in United States, on Friday 27 Dec 2024

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Acitretin Related Compound A ((2Z,4E,6E,8E)-9-(4-Methoxy-2,3,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoic acid)

CAS:69427-46-9

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides etc not elsewhere specified …

Formula:

C₂₁H₂₆O₃

Color and Shape:

Yellow Crystalline Powder

Molecular weight:

326.18819

Ref: 45-1011018

Estimated delivery in United States, on Friday 27 Dec 2024

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Ibuprofen Related Compound C (4-isobutylacetophenone)

CAS:38861-78-8

Aromatic ketones without other oxygen function, nesoi

Formula:

C₁₂H₁₆O

Color and Shape:

Clear Colourless To Light Yellow Liquid

Molecular weight:

176.12012

Ref: 45-1335541

Estimated delivery in United States, on Friday 27 Dec 2024

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Entacapone Related Compound A ((Z)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethylacrylamide)

CAS:145195-63-7

Nitrile function compounds, nesoi

Formula:

C₁₄H₁₅N₃O₅

Color and Shape:

Dark Orange Powder

Molecular weight:

305.10117

Ref: 45-1235944

Estimated delivery in United States, on Friday 27 Dec 2024

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Granisetron Related Compound C (N-[(1R,3r,5S)-9-azabicyclo[3.3.1]non-3-yl]-1-methyl-1H-indazole-3-carboxamide hydrochloride)

CAS:141136-01-8

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₇H₂₂N₄O·HCl

Color and Shape:

White Powder

Molecular weight:

298.17936

Ref: 45-1298139

Estimated delivery in United States, on Friday 27 Dec 2024

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Econazole Related Compound C (1-(4-Chlorobenzyl)-3-[(2RS)-2-[(4-chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]imidazolium chloride)

CAS:57265-33-5

Compounds containing an unfused imidazole ring, whether or not hydrogenated, in the structure, nesoi

Formula:

C₂₅H₂₁Cl₅N₂O

Color and Shape:

White Powder

Molecular weight:

540.00965

Ref: 45-1231852

Estimated delivery in United States, on Friday 27 Dec 2024

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Lansoprazole Related Compound B (2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-pyridin-2-yl]methyl]sulfanyl]-1H-benzimidazole monohydrate)

CAS:1288338-69-1

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₆H₁₄F₃N₃OS·H₂O

Color and Shape:

Brown Crystalline Powder

Molecular weight:

353.08097

Ref: 45-1356931

Estimated delivery in United States, on Friday 27 Dec 2024

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Timolol Related Compound A ((R)-1-(tert-Butylamino)-3-(4-morpholino-1,2,5-thiadiazol-3-yloxy)propan-2-ol maleate)

CAS:26839-77-0

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₃H₂₄N₄O₃S·C₄H₄O₄

Color and Shape:

White Powder

Molecular weight:

432.16787

Ref: 45-1667381

Estimated delivery in United States, on Friday 27 Dec 2024

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Nicardipine Related Compound C (Dimethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate)

CAS:21881-77-6

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₇H₁₈N₂O₆

Color and Shape:

Pale Yellow Solid

Molecular weight:

346.11649

Ref: 45-1463268

Estimated delivery in United States, on Friday 27 Dec 2024

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Triamterene Related Compound A (2,4,6-triamino-5-nitrosopyrimidine)

CAS:1006-23-1

Compounds containing a pyrimidine ring (whether or not

Formula:

C₄H₆N₆O

Color and Shape:

Red Pink Crystalline Powder

Molecular weight:

154.06031

Ref: 45-1680018

Estimated delivery in United States, on Friday 27 Dec 2024

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Spironolactone Epimer Mixture (7-Epispironolactone approximately 56% and Spironolactone approximately 39% mixture)

Lactones nesoi

Color and Shape:

Solid

Ref: 45-1619051

Estimated delivery in United States, on Friday 27 Dec 2024

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Verapamil Related Compound B (4-[(3,4-Dimethoxyphenethyl)(methyl)amino]-2-(3,4-dimethoxyphenyl)-2-isopropylbutanenitrile hydrochloride)

CAS:1794-55-4

Nitrile function compounds, not elsewhere specified or included

Formula:

C₂₆H₃₆N₂O₄·HCl

Color and Shape:

White Crystalline Powder

Molecular weight:

440.26751

Ref: 45-1711406

Estimated delivery in United States, on Friday 27 Dec 2024

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Voriconazole Related Compound A ((2RS, 3RS)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)

CAS:137330-52-0

Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₁₆H₁₄F₃N₅O

Color and Shape:

Light Yellow Powder

Molecular weight:

349.11504

Ref: 45-1718019

Estimated delivery in United States, on Friday 27 Dec 2024

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Orphenadrine Related Compound B (N-Ethyl-N,N-dimethyl-2-[phenyl(o-tolyl)methoxy]ethanaminium chloride; also known as N-Ethyl-N,N-dimethyl-2-[phenyl(2-tolyl)methoxy]ethanaminium chloride)

CAS:93940-17-1

Quaternary ammonium salts and hydroxides, whether or not chemically defined, other

Formula:

C₂₀H₂₈ClNO

Color and Shape:

White Off-White Powder

Molecular weight:

333.18594

Ref: 45-1479020

Estimated delivery in United States, on Friday 27 Dec 2024

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Zileuton Related Compound C (1-(Benzo[b]thiophen-2-yl)ethan-1-one)

CAS:22720-75-8

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₀H₈OS

Color and Shape:

Off-White Crystalline Powder

Molecular weight:

176.02959

Ref: 45-1724689

Estimated delivery in United States, on Friday 27 Dec 2024

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Ketorolac Related Compound C (5-benzoyl-2,3-dihydro-1H-pyrrolizin-1-one)

CAS:113502-52-6

Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoi

Formula:

C₁₄H₁₁NO₂

Color and Shape:

Yellow Solid

Molecular weight:

225.07898

Ref: 45-1356337

Estimated delivery in United States, on Friday 27 Dec 2024

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Irinotecan Related Compound A ((S)-4-ethyl-4,9-dihydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione)

CAS:19685-09-7

Other alkaloids,natural or reproduced by synthesis, and their salts, ethers,esters&other derivatives, nesoi

Formula:

C₂₀H₁₆N₂O₅

Color and Shape:

Light Yellow Powder

Molecular weight:

364.10592

Ref: 45-1347610

Estimated delivery in United States, on Friday 27 Dec 2024

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Dermatan Sulfate

CAS:54328-33-5

Natural polymers & modified natural polymers, in primary forms, nesoi

Color and Shape:

White Powder

Molecular weight:

Average 46275

Ref: 45-1171455

Estimated delivery in United States, on Friday 27 Dec 2024

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Atenolol Related Compound G (2-{4-[2-Hydroxy-3-(isopropylamino)propoxy]phenyl}acetic acid)

CAS:56392-14-4

Aromatic amino-alcohol-phenols, aromatic amino-acid-phenols and other aromatic amino compounds with oxygen function

Formula:

C₁₄H₂₁NO₄

Color and Shape:

White Solid

Molecular weight:

267.14706

Ref: 45-1044378

Estimated delivery in United States, on Friday 27 Dec 2024

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Diphenhydramine N-Oxide (2-(benzhydryloxy)-N,N-dimethylethan-1-amine oxide hydrochloride)

CAS:13168-00-8

Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and …

Formula:

C₁₇H₂₁NO₂·HCl

Color and Shape:

Powder

Molecular weight:

307.13391

Ref: 45-1218050

Estimated delivery in United States, on Friday 27 Dec 2024

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