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
Famotidine Related Compound B (3,5-Bis[2-[[2-[(diaminomethylene)amino]thiazol-4-yl]methylthio]ethyl]-4H-1,2,4,6-thiatriazine 1,1-dioxide) REF: 45-1269221CAS: 89268-62-2	- - -	1,477.00 €	Fri 27 Dec 24
Methylprednisolone Hemisuccinate Related Compound B (11β,21-Dihydroxy-6α-methyl-3,20-dioxopregna-1,4-dien-17-yl hydrogen succinate) REF: 45-1437020CAS: 77074-42-1	- - -	1,469.00 €	Fri 27 Dec 24
Carprofen Related Compound A (Carbazole) REF: 45-1096702CAS: 86-74-8	- - -	1,371.00 €	Fri 27 Dec 24
Abacavir Related Compound A ([4-(2,6-diamino-9H-purin-9-yl)cyclopent-2-enyl]methanol) REF: 45-1000420CAS: 906626-51-5	- - -	1,552.00 €	Fri 27 Dec 24
Azacitidine Related Compound B (1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose) REF: 45-1045541CAS: 6974-32-9	- - -	1,371.00 €	Fri 27 Dec 24
Transplatin REF: 45-1672803CAS: 14913-33-8	- - -	To inquire	Fri 27 Dec 24
Amrinone Related Compound A (5-carboxamide[3,4'-bipyridin]-6(1H)-one) REF: 45-1034320CAS: 62749-46-6	- - -	775.00 €	Fri 27 Dec 24
Loratadine Related Compound A (8-Chloro-5,6-dihydro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine) REF: 45-1370280CAS: 100643-71-8	- - -	1,371.00 €	Fri 27 Dec 24
Testosterone Related Compound I (17β-Hydroxyandrosta-4,6-dien-3-one) REF: 45-1646097CAS: 2484-30-2	- - -	1,390.00 €	Fri 27 Dec 24
Theophylline Related Compound C (N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide) REF: 45-1653037CAS: 7597-60-6	- - -	1,477.00 €	Fri 27 Dec 24
Propofol Related Compound C (2,6-diisopropylphenyl isopropyl ether) REF: 45-1572558CAS: 141214-18-8	- - -	1,477.00 €	Fri 27 Dec 24
Fluorouracil Related Compound B (Dihydropyrimidine-2,4,5(3H)-trione) REF: 45-1279021CAS: 496-76-4	- - -	1,371.00 €	Fri 27 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 €	Fri 27 Dec 24
Irbesartan Related Compound A (1-pentanoylamino-cyclopentanecarboxylic acid [2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-amide) REF: 45-1347711CAS: 748812-53-5	- - -	1,371.00 €	Fri 27 Dec 24
Benazepril Related Compound A ((3R)-3-[[(1R)-1-(ethoxycarbonyl)-3-phenylpropyl]amino]-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepine-1-acetic acid, monohydrochloride) REF: 45-1048620CAS: 215447-89-5	- - -	1,441.00 €	Fri 27 Dec 24
Anagrelide Related Compound C (Ethyl 2-(5,6-dichloro-2-imino-1,2-dihydroquinazolin-3(4H)-yl)acetate) REF: 45-1034771CAS: 70381-75-8	- - -	1,477.00 €	Fri 27 Dec 24
Methimazole Related Compound C (1-Methyl-2-(methylthio)-1H-imidazole) REF: 45-1411038CAS: 14486-52-3	- - -	1,477.00 €	Fri 27 Dec 24
Ranolazine Related Compound D (2,2'-(Piperazine-1,4-diyl)bis[N-(2,6-dimethylphenyl)acetamide]) REF: 45-1598788CAS: 380204-72-8	- - -	1,552.00 €	Fri 27 Dec 24
Palonosetron Related Compound C ((S)-2-[(3R)-Quinuclidin-3-yl]-2,3,3a,4,5,6-hexahydro-1H-benzo[de]isoquinolin-1-one hydrochloride) REF: 45-1492244CAS: 135729-76-9	- - -	1,371.00 €	Fri 27 Dec 24
Rabeprazole Related Compound E (2-{[4-(3-Methoxypropoxy)-3-methyl-2-pyridyl]methylthio}benzimidazole) REF: 45-1598064CAS: 117977-21-6	- - -	1,477.00 €	Fri 27 Dec 24

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Famotidine Related Compound B (3,5-Bis[2-[[2-[(diaminomethylene)amino]thiazol-4-yl]methylthio]ethyl]-4H-1,2,4,6-thiatriazine 1,1-dioxide)

CAS:89268-62-2

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

Formula:

C₁₆H₂₃N₁₁O₂S₅

Color and Shape:

Yellow White Powder

Molecular weight:

561.06397

Ref: 45-1269221

Estimated delivery in United States, on Friday 27 Dec 2024

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Methylprednisolone Hemisuccinate Related Compound B (11β,21-Dihydroxy-6α-methyl-3,20-dioxopregna-1,4-dien-17-yl hydrogen succinate)

CAS:77074-42-1

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

Formula:

C₂₆H₃₄O₈

Color and Shape:

White Solid

Molecular weight:

474.22537

Ref: 45-1437020

Estimated delivery in United States, on Friday 27 Dec 2024

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Carprofen Related Compound A (Carbazole)

CAS:86-74-8

Carbazole

Formula:

C₁₂H₉N

Color and Shape:

Beige Powder

Molecular weight:

167.0735

Ref: 45-1096702

Estimated delivery in United States, on Friday 27 Dec 2024

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Abacavir Related Compound A ([4-(2,6-diamino-9H-purin-9-yl)cyclopent-2-enyl]methanol)

CAS:906626-51-5

Compounds containing a pyrimidine ring (whether or not

Formula:

C₁₁H₁₄N₆O

Color and Shape:

Cream Powder

Molecular weight:

246.12291

Ref: 45-1000420

Estimated delivery in United States, on Friday 27 Dec 2024

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Azacitidine Related Compound B (1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose)

CAS:6974-32-9

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

Formula:

C₂₈H₂₄O₉

Color and Shape:

Powder

Molecular weight:

504.14203

Ref: 45-1045541

Estimated delivery in United States, on Friday 27 Dec 2024

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Transplatin

CAS:14913-33-8

Inorganic or organic compounds of precious metals, whether or not chemically defined, or amalgams of …

Formula:

Cl₂H₆N₂Pt

Color and Shape:

Light Yellow Powder

Molecular weight:

300.05

Ref: 45-1672803

Estimated delivery in United States, on Friday 27 Dec 2024

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Amrinone Related Compound A (5-carboxamide[3,4'-bipyridin]-6(1H)-one)

CAS:62749-46-6

Lactams, nesoi

Formula:

C₁₁H₉N₃O₂

Color and Shape:

Powder

Molecular weight:

215.06948

Ref: 45-1034320

Estimated delivery in United States, on Friday 27 Dec 2024

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Loratadine Related Compound A (8-Chloro-5,6-dihydro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine)

CAS:100643-71-8

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₉H₁₉ClN₂

Color and Shape:

White Off-White Crystalline Powder

Molecular weight:

310.12368

Ref: 45-1370280

Estimated delivery in United States, on Friday 27 Dec 2024

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Testosterone Related Compound I (17β-Hydroxyandrosta-4,6-dien-3-one)

CAS:2484-30-2

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₁₉H₂₆O₂

Color and Shape:

Yellow Powder Needles

Molecular weight:

286.19328

Ref: 45-1646097

Estimated delivery in United States, on Friday 27 Dec 2024

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

CAS:7597-60-6

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₇H₁₀N₄O₃

Color and Shape:

Off-White Powder

Molecular weight:

198.07529

Ref: 45-1653037

Estimated delivery in United States, on Friday 27 Dec 2024

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Propofol Related Compound C (2,6-diisopropylphenyl isopropyl ether)

CAS:141214-18-8

Aromatic ethers and their halogenated, sulfonated, nitrated or nitrosated derivatives

Formula:

C₁₅H₂₄O

Color and Shape:

Liquid

Molecular weight:

220.18272

Ref: 45-1572558

Estimated delivery in United States, on Friday 27 Dec 2024

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Fluorouracil Related Compound B (Dihydropyrimidine-2,4,5(3H)-trione)

CAS:496-76-4

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₄H₄N₂O₃

Color and Shape:

White Powder

Molecular weight:

128.02219

Ref: 45-1279021

Estimated delivery in United States, on Friday 27 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 Friday 27 Dec 2024

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Irbesartan Related Compound A (1-pentanoylamino-cyclopentanecarboxylic acid [2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-amide)

CAS:748812-53-5

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

Formula:

C₂₅H₃₀N₆O₂

Color and Shape:

White Powder

Molecular weight:

446.24302

Ref: 45-1347711

Estimated delivery in United States, on Friday 27 Dec 2024

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Benazepril Related Compound A ((3R)-3-[[(1R)-1-(ethoxycarbonyl)-3-phenylpropyl]amino]-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepine-1-acetic acid, monohydrochloride)

CAS:215447-89-5

Lactams not elsewhere specified or included

Formula:

C₂₄H₂₈N₂O₅·HCl

Color and Shape:

Powder

Molecular weight:

424.19982

Ref: 45-1048620

Estimated delivery in United States, on Friday 27 Dec 2024

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Anagrelide Related Compound C (Ethyl 2-(5,6-dichloro-2-imino-1,2-dihydroquinazolin-3(4H)-yl)acetate)

CAS:70381-75-8

Drugs containing a pyrimidine ring (whether or not hydr

Formula:

C₁₂H₁₃Cl₂N₃O₂·HBr

Color and Shape:

Light Yellow Powder

Molecular weight:

301.03848

Ref: 45-1034771

Estimated delivery in United States, on Friday 27 Dec 2024

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Methimazole Related Compound C (1-Methyl-2-(methylthio)-1H-imidazole)

CAS:14486-52-3

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

Formula:

C₅H₈N₂S

Color and Shape:

Clear Pale Yellow Liquid

Molecular weight:

128.04082

Ref: 45-1411038

Estimated delivery in United States, on Friday 27 Dec 2024

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Ranolazine Related Compound D (2,2'-(Piperazine-1,4-diyl)bis[N-(2,6-dimethylphenyl)acetamide])

CAS:380204-72-8

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

Formula:

C₂₄H₃₂N₄O₂

Color and Shape:

White Off-White Powder

Molecular weight:

408.25253

Ref: 45-1598788

Estimated delivery in United States, on Friday 27 Dec 2024

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Palonosetron Related Compound C ((S)-2-[(3R)-Quinuclidin-3-yl]-2,3,3a,4,5,6-hexahydro-1H-benzo[de]isoquinolin-1-one hydrochloride)

CAS:135729-76-9

Lactams, nesoi

Formula:

C₁₉H₂₄N₂O·HCl

Color and Shape:

Off-White White Pale Yellow Solid

Molecular weight:

332.16554

Ref: 45-1492244

Estimated delivery in United States, on Friday 27 Dec 2024

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Rabeprazole Related Compound E (2-{[4-(3-Methoxypropoxy)-3-methyl-2-pyridyl]methylthio}benzimidazole)

CAS:117977-21-6

Aromatic or modified aromatic heterocyclic compounds wi

Formula:

C₁₈H₂₁N₃O₂S

Color and Shape:

White Off-White Powder

Molecular weight:

343.13545

Ref: 45-1598064

Estimated delivery in United States, on Friday 27 Dec 2024

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