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
1,2-Dinitroglycerin REF: 45-1213148CAS: 621-65-8	- - -	1,328.00 €	Tue 10 Dec 24
Propofol Related Compound A (3,3',5,5'-Tetraisopropylbiphenyl-4,4'-diol) REF: 45-1572536CAS: 2416-95-7	- - -	1,371.00 €	Tue 10 Dec 24
Clofazimine Related Compound B (5-(4-Chlorophenyl)-3-(isopropylimino)-N-phenyl-3,5-dihydrophenazin-2-amine) REF: 45-1138926CAS: 2158184-11-1	- - -	1,552.00 €	Tue 10 Dec 24
Ketorolac Related Compound B (5-benzoyl-2,3-dihydro-1H-pyrrolizin-1-ol) REF: 45-1356326CAS: 154476-25-2	- - -	1,371.00 €	Tue 10 Dec 24
Amrinone Related Compound C (6-Oxo-1,6-dihydro-[3,4'-bipyridine]-5-carbonitrile) REF: 45-1034363CAS: 62749-26-2	- - -	823.00 €	Tue 10 Dec 24
Dipyridamole Related Compound E (2,2',2'',2'''-{[6,8-Di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,4-diyl]bis(azanetriyl)}tetraethanol) REF: 45-1220559	- - -	1,552.00 €	Tue 10 Dec 24
m-Aminophenol REF: 45-1026004CAS: 591-27-5	- - -	1,371.00 €	Tue 10 Dec 24
Naphazoline Related Compound A (N-(2-Aminoethyl)-2-(naphthalen-1-yl)acetamide) REF: 45-1457017CAS: 36321-43-4	- - -	1,477.00 €	Tue 10 Dec 24
4-Nitrobenzoic Acid REF: 45-1466572CAS: 62-23-7	- - -	1,477.00 €	Tue 10 Dec 24
Baclofen Related Compound A (4-(4-Chlorophenyl)-2-pyrrolidinone) REF: 45-1048222CAS: 22518-27-0	- - -	1,477.00 €	Tue 10 Dec 24
Ibuprofen Related Compound C (4-isobutylacetophenone) REF: 45-1335541CAS: 38861-78-8	- - -	1,371.00 €	Tue 10 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 €	Tue 10 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 €	Tue 10 Dec 24
Fexofenadine Related Compound B (2-(3-{1-Hydroxy-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butyl}phenyl)-2-methylpropanoic acid hydrochloride monohydrate) REF: 45-1270399	- - -	1,627.00 €	Tue 10 Dec 24
Dronedarone Related Compound B ((5-Amino-2-butylbenzofuran-3-yl){4-[3-(dibutylamino)propoxy]phenyl}methanone, dihydrochloride) REF: 45-1228552CAS: 1309476-91-2	- - -	887.00 €	Tue 10 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 €	Tue 10 Dec 24
Phenobarbital Related Compound A (5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one) REF: 45-1524012CAS: 69125-70-8	- - -	1,398.00 €	Tue 10 Dec 24
Rabeprazole Related Compound B (2-{[(1H-benzo[d]imidazol-2-yl)sulfinyl]methyl}-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide) REF: 45-1598031CAS: 924663-38-7	- - -	1,477.00 €	Tue 10 Dec 24
Ticlopidine Related Compound B (5-(2-chlorobenzyl)-4-oxo-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine) REF: 45-1667166CAS: 68559-55-7	- - -	496.00 €	Tue 10 Dec 24
Spironolactone Epimer Mixture (7-Epispironolactone approximately 56% and Spironolactone approximately 39% mixture) REF: 45-1619051	- - -	1,442.00 €	Tue 10 Dec 24

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1,2-Dinitroglycerin

CAS:621-65-8

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

Formula:

C₃H₆N₂O₇

Color and Shape:

Clear Colorless Liquid

Molecular weight:

182.0175

Ref: 45-1213148

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Propofol Related Compound A (3,3',5,5'-Tetraisopropylbiphenyl-4,4'-diol)

CAS:2416-95-7

Polyphenols, nesoi

Formula:

C₂₄H₃₄O₂

Color and Shape:

Yellow Powder

Molecular weight:

354.25588

Ref: 45-1572536

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Clofazimine Related Compound B (5-(4-Chlorophenyl)-3-(isopropylimino)-N-phenyl-3,5-dihydrophenazin-2-amine)

CAS:2158184-11-1

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

Formula:

C₂₇H₂₃ClN₄

Color and Shape:

Orange Red Powder

Molecular weight:

438.16112

Ref: 45-1138926

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Ketorolac Related Compound B (5-benzoyl-2,3-dihydro-1H-pyrrolizin-1-ol)

CAS:154476-25-2

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

Formula:

C₁₄H₁₃NO₂

Color and Shape:

Yellow Solid

Molecular weight:

227.09463

Ref: 45-1356326

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Amrinone Related Compound C (6-Oxo-1,6-dihydro-[3,4'-bipyridine]-5-carbonitrile)

CAS:62749-26-2

Lactams, nesoi

Formula:

C₁₁H₇N₃O

Color and Shape:

Tan Off-White Powder

Molecular weight:

197.05891

Ref: 45-1034363

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Dipyridamole Related Compound E (2,2',2'',2'''-{[6,8-Di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,4-diyl]bis(azanetriyl)}tetraethanol)

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

Formula:

C₂₄H₄₀N₈O₄

Color and Shape:

Solid

Molecular weight:

504.31725

Ref: 45-1220559

Estimated delivery in United States, on Tuesday 10 Dec 2024

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m-Aminophenol

CAS:591-27-5

Amino-naphthols and other amino-phenols, their ethers a

Formula:

C₆H₇NO

Color and Shape:

White Pale Yellow Powder

Molecular weight:

109.12 g/mol

Ref: 45-1026004

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Naphazoline Related Compound A (N-(2-Aminoethyl)-2-(naphthalen-1-yl)acetamide)

CAS:36321-43-4

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

Formula:

C₁₄H₁₆N₂O

Color and Shape:

Off-White Yellow Solid

Molecular weight:

228.12626

Ref: 45-1457017

Estimated delivery in United States, on Tuesday 10 Dec 2024

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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 Tuesday 10 Dec 2024

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Baclofen Related Compound A (4-(4-Chlorophenyl)-2-pyrrolidinone)

CAS:22518-27-0

Lactams, nesoi

Formula:

C₁₀H₁₀ClNO

Color and Shape:

White Crystals

Molecular weight:

195.04509

Ref: 45-1048222

Estimated delivery in United States, on Tuesday 10 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 Tuesday 10 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 Tuesday 10 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 Tuesday 10 Dec 2024

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Fexofenadine Related Compound B (2-(3-{1-Hydroxy-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butyl}phenyl)-2-methylpropanoic acid hydrochloride monohydrate)

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₃₂H₃₉NO₄·HCl·H₂O

Color and Shape:

White Powder

Molecular weight:

555.27515

Ref: 45-1270399

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Dronedarone Related Compound B ((5-Amino-2-butylbenzofuran-3-yl){4-[3-(dibutylamino)propoxy]phenyl}methanone, dihydrochloride)

CAS:1309476-91-2

Aromatic pesticides with oxygen hetero

Formula:

C₃₀H₄₂N₂O₃·2HCl

Color and Shape:

Solid

Molecular weight:

550.2729

Ref: 45-1228552

Estimated delivery in United States, on Tuesday 10 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 Tuesday 10 Dec 2024

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Phenobarbital Related Compound A (5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one)

CAS:69125-70-8

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

Formula:

C₁₂H₁₄N₄O

Color and Shape:

White Solid

Molecular weight:

230.11676

Ref: 45-1524012

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Rabeprazole Related Compound B (2-{[(1H-benzo[d]imidazol-2-yl)sulfinyl]methyl}-4-(3-methoxypropoxy)-3-methylpyridine 1-oxide)

CAS:924663-38-7

Aromatic or modified aromatic drugs with nitrogen hetero-atom(s) only, not elsewhere specified or included

Formula:

C₁₈H₂₁N₃O₄S

Color and Shape:

White Powder

Molecular weight:

375.12528

Ref: 45-1598031

Estimated delivery in United States, on Tuesday 10 Dec 2024

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Ticlopidine Related Compound B (5-(2-chlorobenzyl)-4-oxo-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine)

CAS:68559-55-7

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

Formula:

C₁₄H₁₂ClNOS

Color and Shape:

White Powder

Molecular weight:

277.03281

Ref: 45-1667166

Estimated delivery in United States, on Tuesday 10 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 Tuesday 10 Dec 2024

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