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
Isradipine Related Compound A (Isopropyl methyl 4-(4-benzofurazanyl)-2,6-dimethyl-3,5-pyridinedicarboxylate) REF: 45-1354218	- - -	1,357.00 €	Tue 15 Oct 24
Ribavirin Related Compound D (1H-1,2,4-triazole-3-carboxamide) REF: 45-1602740CAS: 3641-08-5	- - -	1,292.00 €	Tue 15 Oct 24
Cefprozil L-Epimer ((6R,7R)-7-[(S)-2-amino-2-(4-hydroxyphenyl)acetamido]-8-oxo-3-[(Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid) REF: 45-1097997CAS: 110764-35-7	- - -	617.00 €	Tue 15 Oct 24
Ramipril Related Compound B ((2S,3aS,6aS)-1-{[(S)-1-Methoxy-1-oxo-4-phenylbutan-2-yl]-L-alanyl}octahydrocyclopenta[b]pyrrole-2-carboxylic acid) REF: 45-1598323CAS: 295328-72-2	- - -	1,477.00 €	Tue 15 Oct 24
Cinacalcet Related Compound D ((S)-N-[1-(Naphthalen-1-yl)ethyl]-3-[3-(trifluoromethyl)phenyl]propan-1-amine hydrochloride) REF: 45-1133966CAS: 1217809-88-5	- - -	2,934.00 €	Tue 15 Oct 24
Tetraxetan Related Compound A (2,2',2""-[10-(2-Ethoxy-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl]triacetic acid) REF: 45-1652169CAS: 2101625-18-5	- - -	1,395.00 €	Tue 15 Oct 24
Clidinium Bromide Related Compound A (3-Hydroxy-1-methylquinuclindinium Bromide) REF: 45-1135021CAS: 2096336-00-2	- - -	1,552.00 €	Tue 15 Oct 24
Verapamil Related Compound E (3,4-dimethoxybenzaldehyde) REF: 45-1711439CAS: 120-14-9	- - -	1,477.00 €	Tue 15 Oct 24
Moexipril Related Compound E ((S)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, hydrochloride) REF: 45-1445642CAS: 82586-62-7	- - -	581.00 €	Tue 15 Oct 24
Desogestrel Related Compound A (13-Ethyl-11-methylene-18,19-dinor-5α,17α-pregn-3-en-20-yn-17-ol) REF: 45-1173246CAS: 201360-82-9	- - -	1,552.00 €	Tue 15 Oct 24
Famciclovir Related Compound E (2-aminopurine) REF: 45-1269130CAS: 452-06-2	- - -	1,145.00 €	Tue 15 Oct 24
Citalopram Related Compound G (3-[5-Chloro-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl]-N,N-dimethylpropan-1-amine hydrobromide) REF: 45-1134197	- - -	1,371.00 €	Tue 15 Oct 24
Azacitidine Related Compound C (1-β-D-Ribofuranosyl-3-guanylurea picrate) REF: 45-1045574CAS: 4336-46-3	- - -	1,477.00 €	Tue 15 Oct 24
Bisoprolol Related Compound C (1-(Isopropylamino)-3-(4-methylphenoxy)propan-2-ol) REF: 45-1075780CAS: 5790-46-5	- - -	1,699.00 €	Tue 15 Oct 24
Clonidine Related Compound A (1-Acetyl-2-(2,6-dichlorophenylimino)-imidazolidine) REF: 45-1140418CAS: 54707-71-0	- - -	1,477.00 €	Tue 15 Oct 24
Tranylcypromine Related Compound A ((+/-)-cis-2-Phenylcyclopropanamine hydrochloride; cis-tranylcypromine hydrochloride) REF: 45-1672916CAS: 54779-58-7	- - -	1,477.00 €	Tue 15 Oct 24
D-camphor sulfonic acid REF: 45-1087520CAS: 3144-16-9	- - -	1,346.00 €	Tue 15 Oct 24
Econazole Related Compound A (1-(2,4-Dichlorophenyl)-2-(1H-imidazole-1-yl)ethanol) REF: 45-1231830CAS: 24155-42-8	- - -	1,477.00 €	Tue 15 Oct 24
Racemic Tamsulosin Hydrochloride REF: 45-1643281CAS: 80223-99-0	- - -	2,716.00 €	Tue 15 Oct 24
Levocetirizine Amide REF: 45-1359958CAS: 909779-33-5	- - -	1,411.00 €	Tue 15 Oct 24

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Isradipine Related Compound A (Isopropyl methyl 4-(4-benzofurazanyl)-2,6-dimethyl-3,5-pyridinedicarboxylate)

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

Formula:

C₁₉H₁₉N₃O₅

Color and Shape:

White Pale Yellow Powder

Molecular weight:

369.38

Ref: 45-1354218

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ribavirin Related Compound D (1H-1,2,4-triazole-3-carboxamide)

CAS:3641-08-5

Heterocyclic compounds (excluding aromatic or modified

Formula:

C₃H₄N₄O

Color and Shape:

Pale Yellow Crystalline Powder

Molecular weight:

112.03851

Ref: 45-1602740

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Cefprozil L-Epimer ((6R,7R)-7-[(S)-2-amino-2-(4-hydroxyphenyl)acetamido]-8-oxo-3-[(Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid)

CAS:110764-35-7

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

Formula:

C₁₈H₁₉N₃O₅S

Color and Shape:

Powder

Molecular weight:

389.10454

Ref: 45-1097997

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ramipril Related Compound B ((2S,3aS,6aS)-1-{[(S)-1-Methoxy-1-oxo-4-phenylbutan-2-yl]-L-alanyl}octahydrocyclopenta[b]pyrrole-2-carboxylic acid)

CAS:295328-72-2

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

Formula:

C₂₄H₃₄N₂O₅

Color and Shape:

White Powder

Molecular weight:

430.24677

Ref: 45-1598323

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Cinacalcet Related Compound D ((S)-N-[1-(Naphthalen-1-yl)ethyl]-3-[3-(trifluoromethyl)phenyl]propan-1-amine hydrochloride)

CAS:1217809-88-5

Aromatic monoamines not elsewhere specified or included and their derivatives, salts therof

Formula:

C₂₂H₂₂F₃N·HCl

Color and Shape:

Pale Yellow Powder

Molecular weight:

393.14711

Ref: 45-1133966

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tetraxetan Related Compound A (2,2',2""-[10-(2-Ethoxy-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl]triacetic acid)

CAS:2101625-18-5

Heterocyclic compounds (excluding aromatic or modified aromatic) withnitrogen hetero-atom(s) only nesoi

Formula:

C₁₈H₃₂N₄O₈

Color and Shape:

Off-White Powder

Molecular weight:

432.22201

Ref: 45-1652169

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Clidinium Bromide Related Compound A (3-Hydroxy-1-methylquinuclindinium Bromide)

CAS:2096336-00-2

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₈H₁₆BrNO

Color and Shape:

White Powder

Molecular weight:

222.13

Ref: 45-1135021

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Verapamil Related Compound E (3,4-dimethoxybenzaldehyde)

CAS:120-14-9

Aldehyde-ethers, aldehyde-phenols and aldehydes with ot

Formula:

C₉H₁₀O₃

Color and Shape:

Powder

Molecular weight:

166.06299

Ref: 45-1711439

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Moexipril Related Compound E ((S)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, hydrochloride)

CAS:82586-62-7

Compounds (excluding drugs and pesticides) containing a

Formula:

C₁₂H₁₆ClNO₄

Color and Shape:

Powder

Molecular weight:

273.07679

Ref: 45-1445642

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Desogestrel Related Compound A (13-Ethyl-11-methylene-18,19-dinor-5α,17α-pregn-3-en-20-yn-17-ol)

CAS:201360-82-9

Sterols and inositols

Formula:

C₂₂H₃₀O

Color and Shape:

White Powder

Molecular weight:

310.22967

Ref: 45-1173246

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Famciclovir Related Compound E (2-aminopurine)

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Famciclovir Related Compound E (2-aminopurine)

CAS:452-06-2

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₅H₅N₅

Color and Shape:

Powder

Molecular weight:

135.0545

Ref: 45-1269130

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Citalopram Related Compound G (3-[5-Chloro-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl]-N,N-dimethylpropan-1-amine hydrobromide)

Aromatic pesticides with oxygen hetero-atom(s) only ne

Formula:

C₁₉H₂₁ClFNO·HBr

Color and Shape:

White Powder

Molecular weight:

333.12957

Ref: 45-1134197

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Azacitidine Related Compound C (1-β-D-Ribofuranosyl-3-guanylurea picrate)

CAS:4336-46-3

Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers and sugar …

Formula:

C₇H₁₄N₄O₅·C₆H₃N₃O₇

Color and Shape:

Yellow Powder

Molecular weight:

234.09642

Ref: 45-1045574

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Bisoprolol Related Compound C (1-(Isopropylamino)-3-(4-methylphenoxy)propan-2-ol)

CAS:5790-46-5

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

Formula:

C₁₃H₂₁NO₂

Color and Shape:

White Solid

Molecular weight:

223.15723

Ref: 45-1075780

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Clonidine Related Compound A (1-Acetyl-2-(2,6-dichlorophenylimino)-imidazolidine)

CAS:54707-71-0

Compounds containing an unfused imidazole ring (whether

Formula:

C₁₁H₁₁Cl₂N₃O

Color and Shape:

White Powder

Molecular weight:

271.02792

Ref: 45-1140418

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tranylcypromine Related Compound A ((+/-)-cis-2-Phenylcyclopropanamine hydrochloride; cis-tranylcypromine hydrochloride)

CAS:54779-58-7

Aromatic monoamines and their derivatives, salts thereof, nesoi

Formula:

C₉H₁₁N·HCl

Color and Shape:

White Powder

Molecular weight:

133.08915

Ref: 45-1672916

Estimated delivery in United States, on Tuesday 15 Oct 2024

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D-camphor sulfonic acid

CAS:3144-16-9

Ketones and quinones, w/not with other oxygen function,and their halogenated,sulfated,nitrated,or nitrosated derivatives, nesoi

Formula:

C₁₀H₁₆O₄S

Color and Shape:

Powder

Molecular weight:

232.07693

Ref: 45-1087520

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Econazole Related Compound A (1-(2,4-Dichlorophenyl)-2-(1H-imidazole-1-yl)ethanol)

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Econazole Related Compound A (1-(2,4-Dichlorophenyl)-2-(1H-imidazole-1-yl)ethanol)

CAS:24155-42-8

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

Formula:

C₁₁H₁₀Cl₂N₂O

Color and Shape:

White Beige Powder

Molecular weight:

256.01702

Ref: 45-1231830

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Racemic Tamsulosin Hydrochloride

CAS:80223-99-0

Sulfonamides, nesoi

Formula:

C₂₀H₂₈N₂O₅S·HCl

Color and Shape:

White Crystals

Molecular weight:

408.17189

Ref: 45-1643281

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Levocetirizine Amide

CAS:909779-33-5

Drugs containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure

Formula:

C₂₁H₂₆ClN₃O₂

Color and Shape:

White Powder

Molecular weight:

387.17135

Ref: 45-1359958

Estimated delivery in United States, on Tuesday 15 Oct 2024

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