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
trans-4-(6,8-Dibromoquinazolin-3(4H)-yl)cyclohexanol Hydrochloride REF: 86-MM0005CAS: 2356152-56-0	- - -	1,467.00 €	Mon 23 Sep 24
Ticlopidine Related Compound A (4-oxo-4,5,6,7-tetrahydrothieno-[3,2-c]pyridine) REF: 45-1667155CAS: 68559-60-4	- - -	535.00 €	Wed 25 Sep 24
Betaxolol Related Compound A (1-(4-Ethylphenoxy)-3-(isopropylamino)propan-2-ol) REF: 45-1069914CAS: 67193-95-7	- - -	1,328.00 €	Wed 25 Sep 24
Tiotropium Related Compound H ((2RS,3aSR,5RS,6RS,6aRS)-6-Hydroxy-4,4-dimethylhexahydro-2H-2,5-methanofuro[3,2-b]pyrrol-4-ium bromide) REF: 45-1667632	- - -	2,587.00 €	Wed 25 Sep 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 €	Wed 25 Sep 24
Praziquantel Related Compound C (2-(N-formylhexahydrohippuroyl)-1,2,3,4-tetrahydroisoquinolin-1-one) REF: 45-1554670CAS: 125273-88-3	- - -	1,477.00 €	Wed 25 Sep 24
Metaraminol Related Compound A ((E)-1-[3-(benzyloxy)phenyl]-2-(hydroxyimino)propan-1-one) REF: 45-1396036	- - -	1,328.00 €	Wed 25 Sep 24
Moxifloxacin Related Compound E (1-Cyclopropyl-6-fluoro-8-hydroxy-1,4-dihydro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid hydrochloride) REF: 45-1448655	- - -	1,441.00 €	Wed 25 Sep 24
Dihydrodutasteride (N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide) REF: 45-1200917CAS: 164656-22-8	- - -	1,398.00 €	Wed 25 Sep 24
Artemether Related Compound B ((3R,5aS,6R,8aS,9R,10R,12R,12aR)-Decahydro-10-methoxy-3,6,9-trimethyl-3,12-epoxy-12H-pyrano[4,3-j]-1,2-benzodioxepin) REF: 45-1042805CAS: 71939-51-0	- - -	1,371.00 €	Wed 25 Sep 24
Medroxyprogesterone Acetate Related Compound B (17-Hydroxy-6α-methylpregn-4-ene-3,20-dione) REF: 45-1378023CAS: 520-85-4	- - -	1,477.00 €	Wed 25 Sep 24
Amoxicillin Related Compound F (3-(4-Hydroxyphenyl)pyrazin-2-ol; phenylpyrazinediol) REF: 45-1031569CAS: 126247-63-0	- - -	1,477.00 €	Wed 25 Sep 24
Beclomethasone Dipropionate Related Compound A (9-Chloro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-21-yl propionate) REF: 45-1048517CAS: 69224-79-9	- - -	1,222.00 €	Wed 25 Sep 24
Benzphetamine Related Compound E ((1S,2S)-2-[Benzyl(methyl)amino]-1-phenylpropan-1-ol hydrochloride) REF: 45-1059058CAS: 1591807-86-1	- - -	950.00 €	Wed 25 Sep 24
Bendamustine Related Compound H (4-[5-({2-[(4-{5-[Bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoyl)oxy]ethyl}(2-chloroethyl)amino)-1-methyl-1H-benzimidazol-2-yl]butanoic acid) REF: 45-1065301CAS: 1228551-91-4	- - -	1,357.00 €	Wed 25 Sep 24
Tetracaine Related Compound B (4-(Butylamino)benzoic acid) REF: 45-1650017CAS: 4740-24-3	- - -	1,371.00 €	Wed 25 Sep 24
Moexipril Related Compound B ((S)-ethyl 2-{(3S,11aS)-8,9-dimethoxy-3-methyl-1,4-dioxo-3,4-dihydro-1H-pyrazino[1,2-b]isoquinolin-2(6H,11H,11aH)-yl}-4-phenylbutanoate) REF: 45-1445619CAS: 103733-51-3	- - -	581.00 €	Wed 25 Sep 24
Cyclopentylpropanoic Acid (3-Cyclopentylpropanoic acid) REF: 45-1156167CAS: 140-77-2	- - -	187.00 €	Wed 25 Sep 24
Azithromycin Related Compound H (3'-N-{[4-(Acetylamino)phenyl]sulfonyl}-3'-N-demethylazithromycin) REF: 45-1046023CAS: 612069-30-4	- - -	1,477.00 €	Wed 25 Sep 24
Lovastatin Epimer Mixture (Epilovastatin and Lovastatin 1:1 Mixture) REF: 45-1236833	- - -	905.00 €	Wed 25 Sep 24

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trans-4-(6,8-Dibromoquinazolin-3(4H)-yl)cyclohexanol Hydrochloride

CAS:2356152-56-0

Formula:

C₁₄H₁₆Br₂N₂OClH

Molecular weight:

424.56

Ref: 86-MM0005

100mg 1,467.00 €

Estimated delivery in United States, on Monday 23 Sep 2024

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

CAS:68559-60-4

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

Formula:

C₇H₇NOS

Color and Shape:

White Off-White Powder

Molecular weight:

153.02484

Ref: 45-1667155

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Betaxolol Related Compound A (1-(4-Ethylphenoxy)-3-(isopropylamino)propan-2-ol)

CAS:67193-95-7

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

Formula:

C₁₄H₂₃NO₂

Color and Shape:

White Crystalline Powder

Molecular weight:

237.17288

Ref: 45-1069914

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Tiotropium Related Compound H ((2RS,3aSR,5RS,6RS,6aRS)-6-Hydroxy-4,4-dimethylhexahydro-2H-2,5-methanofuro[3,2-b]pyrrol-4-ium bromide)

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

Formula:

C₉H₁₆BrNO₂

Color and Shape:

White Powder

Molecular weight:

249.03644

Ref: 45-1667632

Estimated delivery in United States, on Wednesday 25 Sep 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 Wednesday 25 Sep 2024

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Praziquantel Related Compound C (2-(N-formylhexahydrohippuroyl)-1,2,3,4-tetrahydroisoquinolin-1-one)

CAS:125273-88-3

Lactams not elsewhere specified or included

Formula:

C₁₉H₂₂N₂O₄

Color and Shape:

White Crystalline Powder

Molecular weight:

342.15796

Ref: 45-1554670

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Metaraminol Related Compound A ((E)-1-[3-(benzyloxy)phenyl]-2-(hydroxyimino)propan-1-one)

Aromatic imines and their derivatives, salts thereof

Formula:

C₁₆H₁₆NO₃

Color and Shape:

Off-White Solid

Molecular weight:

270.11302

Ref: 45-1396036

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Moxifloxacin Related Compound E (1-Cyclopropyl-6-fluoro-8-hydroxy-1,4-dihydro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid hydrochloride)

Compounds (excluding drugs and pesticides) containing a quinoline or isoquinoline ring

Formula:

C₂₀H₂₂FN₃O₄·HCl

Color and Shape:

Powder

Molecular weight:

387.15943

Ref: 45-1448655

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Dihydrodutasteride (N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide)

CAS:164656-22-8

Lactams not elsewhere specified or included

Formula:

C₂₇H₃₂F₆N₂O₂

Color and Shape:

White Solid

Molecular weight:

530.2368

Ref: 45-1200917

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Artemether Related Compound B ((3R,5aS,6R,8aS,9R,10R,12R,12aR)-Decahydro-10-methoxy-3,6,9-trimethyl-3,12-epoxy-12H-pyrano[4,3-j]-1,2-benzodioxepin)

CAS:71939-51-0

Heterocyclic compounds with oxygen hetero-atom(s) only

Formula:

C₁₆H₂₆O₅

Color and Shape:

White Solid Powder

Molecular weight:

298.17802

Ref: 45-1042805

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Medroxyprogesterone Acetate Related Compound B (17-Hydroxy-6α-methylpregn-4-ene-3,20-dione)

CAS:520-85-4

Estrogens and progestins

Formula:

C₂₂H₃₂O₃

Color and Shape:

White Powder

Molecular weight:

344.23514

Ref: 45-1378023

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Amoxicillin Related Compound F (3-(4-Hydroxyphenyl)pyrazin-2-ol; phenylpyrazinediol)

CAS:126247-63-0

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

Formula:

C₁₀H₈N₂O₂

Color and Shape:

Yellow Powder

Molecular weight:

188.05858

Ref: 45-1031569

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Beclomethasone Dipropionate Related Compound A (9-Chloro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-21-yl propionate)

CAS:69224-79-9

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

Formula:

C₂₅H₃₃ClO₆

Color and Shape:

White Off-White Powder

Molecular weight:

464.19657

Ref: 45-1048517

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Benzphetamine Related Compound E ((1S,2S)-2-[Benzyl(methyl)amino]-1-phenylpropan-1-ol hydrochloride)

CAS:1591807-86-1

Aromatic drugs of amino-alcohols, other than those contg more than one kind of oxygen function, …

Formula:

C₁₇H₂₁NOHCl

Color and Shape:

White Off-White Powder

Molecular weight:

255.16231

Ref: 45-1059058

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Bendamustine Related Compound H (4-[5-({2-[(4-{5-[Bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoyl)oxy]ethyl}(2-chloroethyl)amino)-1-methyl-1H-benzimidazol-2-yl]butanoic acid)

CAS:1228551-91-4

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

Formula:

C₃₂H₄₁Cl₃N₆O₄

Color and Shape:

Off-White Yellow Orange Solid

Molecular weight:

678.22549

Ref: 45-1065301

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Tetracaine Related Compound B (4-(Butylamino)benzoic acid)

CAS:4740-24-3

Aromatic amino-acids and their esters,other than those

Formula:

C₁₁H₁₅NO₂

Color and Shape:

White Cream Powder

Molecular weight:

193.11028

Ref: 45-1650017

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Moexipril Related Compound B ((S)-ethyl 2-{(3S,11aS)-8,9-dimethoxy-3-methyl-1,4-dioxo-3,4-dihydro-1H-pyrazino[1,2-b]isoquinolin-2(6H,11H,11aH)-yl}-4-phenylbutanoate)

CAS:103733-51-3

Compounds (excluding drugs and pesticides) containing a

Formula:

C₂₇H₃₂N₂O₆

Color and Shape:

Off-White Solid

Molecular weight:

480.22604

Ref: 45-1445619

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Cyclopentylpropanoic Acid (3-Cyclopentylpropanoic acid)

CAS:140-77-2

Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives

Formula:

C₈H₁₄O₂

Color and Shape:

Colorless Yellow Liquid

Molecular weight:

142.09938

Ref: 45-1156167

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Azithromycin Related Compound H (3'-N-{[4-(Acetylamino)phenyl]sulfonyl}-3'-N-demethylazithromycin)

CAS:612069-30-4

Sulfonamides, nesoi

Formula:

C₄₅H₇₇N₃O₁₅S

Color and Shape:

White Powder

Molecular weight:

931.50754

Ref: 45-1046023

Estimated delivery in United States, on Wednesday 25 Sep 2024

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Lovastatin Epimer Mixture (Epilovastatin and Lovastatin 1:1 Mixture)

Lactones nesoi

Formula:

C₂₄H₃₆O₅

Color and Shape:

Powder

Molecular weight:

404.25627

Ref: 45-1236833

Estimated delivery in United States, on Wednesday 25 Sep 2024

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