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
Sulindac Related Compound A ((E)-2-{5-Fluoro-2-methyl-1-[4-(methylsulfinyl)benzylidene]-1H-inden-3-yl}acetic acid) REF: 45-1642019CAS: 53933-60-1	- - -	1,552.00 €	Tue 03 Dec 24
Omeprazole Related Compound B (5-Methoxy-1H-benzimidazol-2-thiol) REF: 45-1478480CAS: 37052-78-1	- - -	1,371.00 €	Tue 03 Dec 24
Trazodone Related Compound C (2-{3-[4-(4-Chlorophenyl)piperazin-1-yl]propyl}-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one hydrochloride) REF: 45-1673533CAS: 1263278-77-8	- - -	1,552.00 €	Tue 03 Dec 24
Bupivacaine Related Compound B N-(2,6-Dimethylphenyl)piperidine-2-carboxamide Hydrochloride REF: 45-1078529CAS: 65797-42-4	- - -	1,371.00 €	Tue 03 Dec 24
Lorazepam Related Compound A (7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-acetoxy-2H-1,4-benzodiazepin-2-one) REF: 45-1370327CAS: 2848-96-6	- - -	1,683.00 €	Tue 03 Dec 24
Vardenafil Related Compound E (2-[2-Ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one) REF: 45-1711075CAS: 448184-46-1	- - -	1,575.00 €	Tue 03 Dec 24
Linezolid Related Compound D ((R)-[3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl]methyl methanesulfonate) REF: 45-1367606CAS: 174649-09-3	- - -	1,371.00 €	Tue 03 Dec 24
Cromolyn Related Compound A (1,3-bis(2-acetyl-3-hydroxyphenoxy) propan-2-ol) REF: 45-1150513CAS: 16150-44-0	- - -	1,477.00 €	Tue 03 Dec 24
Fenoldopam Related Compound B (1-(4-Hydroxyphenyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine-7,8-diol methanesulfonate) REF: 45-1269470	- - -	815.00 €	Tue 03 Dec 24
Zolmitriptan Related Compound E ((S)-N,N-dimethyl-2-{5-[(2-oxooxazolidin-4-yl)methyl]-1H-indol-3-yl}ethanamine oxide) REF: 45-1727064CAS: 251451-30-6	- - -	1,371.00 €	Tue 03 Dec 24
Benazepril Related Compound D (3-(1-Ethoxycarbonyl-3-cyclohexyl-(1S)-propyl)amino-2,3,4,5-tetrahydro-2-oxo-1H-1-(3S)-benzazepine-1-acetic acid monohydrochloride) REF: 45-1048652	- - -	1,441.00 €	Tue 03 Dec 24
Capecitabine Related Compound B (5'-deoxy-5-fluorouridine) REF: 45-1090728CAS: 3094-09-5	- - -	1,477.00 €	Tue 03 Dec 24
Lacosamide S-Enantiomer ((S)-2-(Acetylamino)-N-benzyl-3-methoxypropanamide) REF: 45-1357158CAS: 175481-37-5	- - -	1,395.00 €	Tue 03 Dec 24
Nefazodone Related Compound B (2-[3-[4-(4-chlorophenyl)-1-piperazinyl]propyl]-5-ethyl-2,4-dihydro-4-(2-phenoxyethyl)-3H-1,2,4-triazol-3-one hydrochloride) REF: 45-1457924	- - -	793.00 €	Tue 03 Dec 24
Prednicarbate Related Compound A (1,2-Dihydroprednicarbate) REF: 45-1554910CAS: 671225-26-6	- - -	1,552.00 €	Tue 03 Dec 24
Ramipril Related Compound C ((2S,3aS,6aS)-1-{[(S)-4-Cyclohexyl-1-ethoxy-1-oxobutan-2-yl]-L-alanyl}octahydrocyclopenta[b]pyrrole-2-carboxylic acid hydrochloride) REF: 45-1598338CAS: 885516-61-0	- - -	1,371.00 €	Tue 03 Dec 24
Letrozole Related Compound A (4,4'-(1H-1,3,4-triazol-1-ylmethylene)dibenzonitrile) REF: 45-1356982CAS: 112809-52-6	- - -	1,477.00 €	Tue 03 Dec 24
Dalfampridine Related Compound A (4-Aminopyridine 1-oxide) REF: 45-1162545CAS: 3535-75-9	- - -	1,374.00 €	Tue 03 Dec 24
Bisacodyl Related Compound C (4-[(4-Hydroxyphenyl)(pyridin-2-yl)methyl]phenyl acetate) REF: 45-1074051CAS: 72901-16-7	- - -	1,477.00 €	Tue 03 Dec 24
Bupivacaine Related Compound A (6-(butylamino)-N-(2,6-dimethylphenyl)hexanamide) (AS) REF: 45-1078518	- - -	1,371.00 €	Tue 03 Dec 24

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Sulindac Related Compound A ((E)-2-{5-Fluoro-2-methyl-1-[4-(methylsulfinyl)benzylidene]-1H-inden-3-yl}acetic acid)

CAS:53933-60-1

Other aromatic organo-sulfur compounds (excluding pesticides)

Formula:

C₂₀H₁₇FO₃S

Color and Shape:

Yellow Powder

Molecular weight:

356.08824

Ref: 45-1642019

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Omeprazole Related Compound B (5-Methoxy-1H-benzimidazol-2-thiol)

CAS:37052-78-1

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

Formula:

C₈H₈N₂OS

Color and Shape:

White Off-White Powder

Molecular weight:

180.03573

Ref: 45-1478480

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Trazodone Related Compound C (2-{3-[4-(4-Chlorophenyl)piperazin-1-yl]propyl}-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one hydrochloride)

CAS:1263278-77-8

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

Formula:

C₁₉H₂₂ClN₅O·HCl

Color and Shape:

Off-White Powder

Molecular weight:

371.15129

Ref: 45-1673533

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Bupivacaine Related Compound B N-(2,6-Dimethylphenyl)piperidine-2-carboxamide Hydrochloride

CAS:65797-42-4

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₄H₂₀N₂O·HCl

Color and Shape:

White Light Yellow Crystalline Powder

Molecular weight:

232.15756

Ref: 45-1078529

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Lorazepam Related Compound A (7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-acetoxy-2H-1,4-benzodiazepin-2-one)

CAS:2848-96-6

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₁₇H₁₂Cl₂N₂O₃

Color and Shape:

Off-White Powder

Molecular weight:

362.0225

Ref: 45-1370327

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Vardenafil Related Compound E (2-[2-Ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one)

CAS:448184-46-1

Sulfonamides, nesoi

Formula:

C₂₁H₂₈N₆O₄S

Color and Shape:

White Powder

Molecular weight:

460.18927

Ref: 45-1711075

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Linezolid Related Compound D ((R)-[3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl]methyl methanesulfonate)

CAS:174649-09-3

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

Formula:

C₁₅H₁₉FN₂O₆S

Color and Shape:

White Solid

Molecular weight:

374.09479

Ref: 45-1367606

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Cromolyn Related Compound A (1,3-bis(2-acetyl-3-hydroxyphenoxy) propan-2-ol)

CAS:16150-44-0

Ketone-phenols and ketones with other oxygen function

Formula:

C₁₉H₂₀O₇

Color and Shape:

Off-White Powder

Molecular weight:

360.1209

Ref: 45-1150513

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Fenoldopam Related Compound B (1-(4-Hydroxyphenyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine-7,8-diol methanesulfonate)

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

Formula:

C₁₆H₁₇NO₃·CH₄SO₃

Color and Shape:

Off-White Powder

Molecular weight:

271.12084

Ref: 45-1269470

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Zolmitriptan Related Compound E ((S)-N,N-dimethyl-2-{5-[(2-oxooxazolidin-4-yl)methyl]-1H-indol-3-yl}ethanamine oxide)

CAS:251451-30-6

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

Formula:

C₁₆H₂₁N₃O₃

Color and Shape:

Off-White Powder

Molecular weight:

303.15829

Ref: 45-1727064

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Benazepril Related Compound D (3-(1-Ethoxycarbonyl-3-cyclohexyl-(1S)-propyl)amino-2,3,4,5-tetrahydro-2-oxo-1H-1-(3S)-benzazepine-1-acetic acid monohydrochloride)

Lactams, nesoi

Formula:

C₂₄H₃₄N₂O₅·HCl

Color and Shape:

White Fine Powder

Molecular weight:

430.24677

Ref: 45-1048652

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Capecitabine Related Compound B (5'-deoxy-5-fluorouridine)

CAS:3094-09-5

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

Formula:

C₉H₁₁FN₂O₅

Color and Shape:

White Powder

Molecular weight:

246.0652

Ref: 45-1090728

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Lacosamide S-Enantiomer ((S)-2-(Acetylamino)-N-benzyl-3-methoxypropanamide)

CAS:175481-37-5

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

Formula:

C₁₃H₁₈N₂O₃

Color and Shape:

White Powder

Molecular weight:

250.13174

Ref: 45-1357158

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Nefazodone Related Compound B (2-[3-[4-(4-chlorophenyl)-1-piperazinyl]propyl]-5-ethyl-2,4-dihydro-4-(2-phenoxyethyl)-3H-1,2,4-triazol-3-one hydrochloride)

Compounds containing a pyrimidine ring (whether or not

Formula:

C₂₅H₃₂ClN₅O₂·HCl

Color and Shape:

White Powder

Molecular weight:

506.47

Ref: 45-1457924

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Prednicarbate Related Compound A (1,2-Dihydroprednicarbate)

CAS:671225-26-6

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₂₇H₃₈O₈

Color and Shape:

White Powder

Molecular weight:

490.25667

Ref: 45-1554910

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Ramipril Related Compound C ((2S,3aS,6aS)-1-{[(S)-4-Cyclohexyl-1-ethoxy-1-oxobutan-2-yl]-L-alanyl}octahydrocyclopenta[b]pyrrole-2-carboxylic acid hydrochloride)

CAS:885516-61-0

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

Formula:

C₂₃H₃₈N₂O₅·HCl

Color and Shape:

White Solid Crystalline Powder

Molecular weight:

422.27807

Ref: 45-1598338

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Letrozole Related Compound A (4,4'-(1H-1,3,4-triazol-1-ylmethylene)dibenzonitrile)

CAS:112809-52-6

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

Formula:

C₁₇H₁₁N₅

Color and Shape:

White Off-White Powder

Molecular weight:

285.10145

Ref: 45-1356982

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Dalfampridine Related Compound A (4-Aminopyridine 1-oxide)

CAS:3535-75-9

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₅H₆N₂O

Color and Shape:

White Solid

Molecular weight:

110.04801

Ref: 45-1162545

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Bisacodyl Related Compound C (4-[(4-Hydroxyphenyl)(pyridin-2-yl)methyl]phenyl acetate)

CAS:72901-16-7

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₂₀H₁₇NO₃

Color and Shape:

Solid

Molecular weight:

319.12084

Ref: 45-1074051

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Bupivacaine Related Compound A (6-(butylamino)-N-(2,6-dimethylphenyl)hexanamide) (AS)

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

Formula:

C₁₈H₃₀N₂O

Color and Shape:

White Off-White Powder

Molecular weight:

290.23581

Ref: 45-1078518

Estimated delivery in United States, on Tuesday 3 Dec 2024

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