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
Chlorpheniramine Related Compound C (3-(4-chlorophenyl)-N-methyl-3-(pyridin-2-yl)propan-1-amine maleate) REF: 45-1123146CAS: 22630-25-7	- - -	2,204.00 €	Tue 10 Dec 24
Gatifloxacin Related Compound D (1-Cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid) REF: 45-1288441CAS: 112811-57-1	- - -	1,371.00 €	Tue 10 Dec 24
Aprepitant Related Compound A (3-[[(2R,3R)-2-[(R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholino]methyl]-1H-1,2,4-triazol-5(4H)-one) REF: 45-1041915CAS: 1148113-53-4	- - -	1,477.00 €	Tue 10 Dec 24
Fosinopril Related Compound C ((4S)-4-cyclohexyl-1-[(RS)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]-acetyl-L-proline propionate (ester), sodium salt) REF: 45-1283437	- - -	1,357.00 €	Tue 10 Dec 24
Celecoxib Related Compound C (4-[5-(2,4-Dimethylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl]benzenesulfonamide) REF: 45-1098537CAS: 170570-09-9	- - -	1,549.00 €	Tue 10 Dec 24
Betamethasone Dipropionate Related Compound H (6α-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropionate) REF: 45-1067781CAS: 2575516-37-7	- - -	1,452.00 €	Tue 10 Dec 24
Citalopram Related Compound C (3-(3-Dimethylaminopropyl)-3-(4-fluorophenyl)-6-cyano-1(3H)-isobenzofuranone oxalate) REF: 45-1134266CAS: 1440961-11-4	- - -	1,371.00 €	Tue 10 Dec 24
Flumazenil Related Compound A (8-Fluoro-5-methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylic acid) REF: 45-1273819CAS: 84378-44-9	- - -	1,728.00 €	Tue 10 Dec 24
Decitabine Related Compound E (4-Amino-1-(2-deoxy-α-D-ribofuranosyl)-1,3,5-triazin-2(1H)-one) REF: 45-1165259CAS: 22432-95-7	- - -	1,398.00 €	Tue 10 Dec 24
Diazepam Related Compound E (6-Chloro-1-methyl-4-phenylquinazolin-2(1H)-one) REF: 45-1185063CAS: 20927-53-1	- - -	1,477.00 €	Tue 10 Dec 24
Zolmitriptan Related Compound B ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol) REF: 45-1727031CAS: 139264-69-0	- - -	1,441.00 €	Tue 10 Dec 24
Miconazole Related Compound C (2-[(2,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethan-1-amine hydrochloride) REF: 45-1443431	- - -	1,477.00 €	Tue 10 Dec 24
Irinotecan Related Compound E ((S)-4,11-Diethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione) REF: 45-1347664CAS: 78287-27-1	- - -	1,371.00 €	Tue 10 Dec 24
Prilocaine Related Compound B ((RS)-N-(4-methylphenyl)-2-(propylamino)propanamide) REF: 45-1561020CAS: 744961-76-0	- - -	1,477.00 €	Tue 10 Dec 24
Terazosin Related Compound B (1-(4-Hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine) REF: 45-1643474CAS: 1177261-73-2	- - -	1,410.00 €	Tue 10 Dec 24
1-Mononitroglycerin REF: 45-1445571CAS: 624-43-1	- - -	1,328.00 €	Tue 10 Dec 24
Voriconazole Related Compound B ((2S, 3R)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) REF: 45-1718020CAS: 137234-63-0	- - -	1,477.00 €	Tue 10 Dec 24
Phenoxybenzamine Nitrile (3-[Benzyl(1-phenoxypropan-2-yl)amino]propanenitrile) REF: 45-1526030	- - -	1,583.00 €	Tue 10 Dec 24
Memantine Related Compound G (3-Methyladamantan-1-amine hydrochloride) REF: 45-1380579CAS: 33103-93-4	- - -	1,328.00 €	Tue 10 Dec 24
Ranitidine Related Compound C (N-[2-[[[5-[(dimethylamino)methyl]-2-furanyl]methyl]sulfinyl]ethyl]-N-methyl-2-nitro-1,1-ethenediamine) REF: 45-1598700CAS: 73851-70-4	- - -	1,371.00 €	Tue 10 Dec 24

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Chlorpheniramine Related Compound C (3-(4-chlorophenyl)-N-methyl-3-(pyridin-2-yl)propan-1-amine maleate)

CAS:22630-25-7

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₉H₂₁ClN₂O₄

Color and Shape:

Off-White Powder

Molecular weight:

376.11898

Ref: 45-1123146

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Gatifloxacin Related Compound D (1-Cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid)

CAS:112811-57-1

Products described in u.s. note 3 to section 6 containing a pyrimidine ring (whether or …

Formula:

C₁₈H₂₀FN₃O₄

Color and Shape:

Solid

Molecular weight:

361.14378

Ref: 45-1288441

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Aprepitant Related Compound A (3-[[(2R,3R)-2-[(R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholino]methyl]-1H-1,2,4-triazol-5(4H)-one)

CAS:1148113-53-4

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

Formula:

C₂₃H₂₁F₇N₄O₃

Color and Shape:

White Off-White Powder

Molecular weight:

534.15019

Ref: 45-1041915

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Fosinopril Related Compound C ((4S)-4-cyclohexyl-1-[(RS)-1-hydroxy-2-methylpropoxy](4-phenylbutyl)phosphinyl]-acetyl-L-proline propionate (ester), sodium salt)

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₃₀H₄₅NNaO₇P

Color and Shape:

White Powder

Molecular weight:

585.28313

Ref: 45-1283437

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Celecoxib Related Compound C (4-[5-(2,4-Dimethylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl]benzenesulfonamide)

CAS:170570-09-9

Sulfonamides, nesoi

Formula:

C₁₈H₁₆F₃N₃O₂S

Color and Shape:

Solid

Molecular weight:

395.09153

Ref: 45-1098537

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Betamethasone Dipropionate Related Compound H (6α-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropionate)

CAS:2575516-37-7

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides etc, nesoi

Formula:

C₂₈H₃₆BrFO₇

Color and Shape:

White Powder

Molecular weight:

582.16284

Ref: 45-1067781

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Citalopram Related Compound C (3-(3-Dimethylaminopropyl)-3-(4-fluorophenyl)-6-cyano-1(3H)-isobenzofuranone oxalate)

CAS:1440961-11-4

Lactones nesoi

Formula:

C₂₀H₁₉FN₂O₂·C₂H₂O₄

Color and Shape:

White Light Yellow Powder

Molecular weight:

338.14306

Ref: 45-1134266

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Flumazenil Related Compound A (8-Fluoro-5-methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylic acid)

CAS:84378-44-9

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

Formula:

C₁₃H₁₀FN₃O₃

Color and Shape:

White Powder

Molecular weight:

275.24

Ref: 45-1273819

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Decitabine Related Compound E (4-Amino-1-(2-deoxy-α-D-ribofuranosyl)-1,3,5-triazin-2(1H)-one)

CAS:22432-95-7

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

Formula:

C₈H₁₂N₄O₄

Color and Shape:

White Powder

Molecular weight:

228.21

Ref: 45-1165259

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Diazepam Related Compound E (6-Chloro-1-methyl-4-phenylquinazolin-2(1H)-one)

CAS:20927-53-1

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

Formula:

C₁₅H₁₁ClN₂O

Color and Shape:

Off-White Powder

Molecular weight:

270.72

Ref: 45-1185063

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Zolmitriptan Related Compound B ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol)

CAS:139264-69-0

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

Formula:

C₁₅H₂₃N₃O

Color and Shape:

White Solid

Molecular weight:

261.18411

Ref: 45-1727031

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Miconazole Related Compound C (2-[(2,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethan-1-amine hydrochloride)

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

Formula:

C₁₅H₁₃Cl₄NO·HCl

Color and Shape:

Solid

Molecular weight:

398.9518

Ref: 45-1443431

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Irinotecan Related Compound E ((S)-4,11-Diethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione)

CAS:78287-27-1

Vegetable alkaloids, natural or reproduced by synthesis, their salts and other derivatives, nesoi

Formula:

C₂₂H₂₀N₂O₄

Color and Shape:

Light Brown Powder

Molecular weight:

376.14231

Ref: 45-1347664

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Prilocaine Related Compound B ((RS)-N-(4-methylphenyl)-2-(propylamino)propanamide)

CAS:744961-76-0

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₁₃H₂₀N₂O

Color and Shape:

Off-White White Solid

Molecular weight:

220.15756

Ref: 45-1561020

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Terazosin Related Compound B (1-(4-Hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine)

CAS:1177261-73-2

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

Formula:

C₁₉H₂₄N₄O₅

Color and Shape:

White Powder

Molecular weight:

388.17467

Ref: 45-1643474

Estimated delivery in United States, on Tuesday 10 Dec 2024

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1-Mononitroglycerin

CAS:624-43-1

Esters of other inorganic acids of nonmetals & their salts, their halogenated/sulfonated/nitrated/nitrosated derivs, except of …

Formula:

C₃H₇NO₅

Color and Shape:

Clear Colorless Liquid

Molecular weight:

137.03242

Ref: 45-1445571

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Voriconazole Related Compound B ((2S, 3R)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)

CAS:137234-63-0

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

Formula:

C₁₆H₁₄F₃N₅O

Color and Shape:

White Off-White Crystalline Powder

Molecular weight:

349.11504

Ref: 45-1718020

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Phenoxybenzamine Nitrile (3-[Benzyl(1-phenoxypropan-2-yl)amino]propanenitrile)

Nitrile function compounds, not elsewhere specified or included

Formula:

C₁₉H₂₂N₂O

Color and Shape:

Yellow Viscous Liquid

Molecular weight:

294.17321

Ref: 45-1526030

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Memantine Related Compound G (3-Methyladamantan-1-amine hydrochloride)

CAS:33103-93-4

Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof

Formula:

C₁₁H₁₉N·HCl

Color and Shape:

White Powder

Molecular weight:

201.7

Ref: 45-1380579

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Ranitidine Related Compound C (N-[2-[[[5-[(dimethylamino)methyl]-2-furanyl]methyl]sulfinyl]ethyl]-N-methyl-2-nitro-1,1-ethenediamine)

CAS:73851-70-4

Compounds containing an unfused furan ring (whether or

Formula:

C₁₃H₂₂N₄O₄S

Color and Shape:

Off-White Solid

Molecular weight:

330.13618

Ref: 45-1598700

Estimated delivery in United States, on Tuesday 10 Dec 2024

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