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
Tropicamide Related Compound A (N-(pyridin-4-ylmethyl)ethanamine) REF: 45-1699016CAS: 33403-97-3	- - -	1,477.00 €	Tue 15 Oct 24
Cyclophosphamide REF: 45-1157002CAS: 6055-19-2	- - -	354.00 €	Tue 15 Oct 24
Vecuronium Bromide Related Compound C (Piperidinium, 1-[(2β,3α,5α,16β,17β)-3,17-dihydroxy-2-(1-piperidinyl) androstan-16-yl]-1-methyl bromide) REF: 45-1711188CAS: 73319-30-9	- - -	1,441.00 €	Tue 15 Oct 24
Fluorouracil Related Compound A (Pyrimidine-2,4,6(1H,3H,5H)-trione) REF: 45-1279019CAS: 67-52-7	- - -	1,371.00 €	Tue 15 Oct 24
Rufinamide Related Compound A (1-(2-Fluorobenzyl)-1H-1,2,3-triazole-4-carboxamide) REF: 45-1606412CAS: 106308-41-2	- - -	1,477.00 €	Tue 15 Oct 24
Omeprazole Related Compounds F and G Mixture REF: 45-1478491	- - -	1,511.00 €	Tue 15 Oct 24
Tinidazole Related Compound B (1-(2-ethyl-sulfonylethyl)-2-methyl-4-nitroimidazole) REF: 45-1667541CAS: 25459-12-5	- - -	1,477.00 €	Tue 15 Oct 24
Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one) REF: 45-1370269CAS: 31251-41-9	- - -	1,371.00 €	Tue 15 Oct 24
Ziprasidone Related Compound F (Sodium 2-(2-amino-5-{2-[4-(benzo[d]isothiazol-3-yl)piperazin-1-yl]ethyl}-4-chlorophenyl)acetate monohydrate) REF: 45-1724474	- - -	1,374.00 €	Tue 15 Oct 24
Azithromycin N-Oxide REF: 45-1046090CAS: 90503-06-3	- - -	1,346.00 €	Tue 15 Oct 24
Meloxicam Related Compound A (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate- 1,1-dioxide) REF: 45-1379412CAS: 24683-26-9	- - -	1,477.00 €	Tue 15 Oct 24
Paliperidone Related Compound D (4-(6-Fluorobenzo[d]isoxazol-3-yl)-1-[2-(9-hydroxy-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl]piperidine 1-oxide) REF: 45-1491842CAS: 761460-08-6	- - -	1,371.00 €	Tue 15 Oct 24
Voriconazole Related Compound F ({(1RS,4SR)-7,7-Dimethyl-2-oxobicyclo[2.2.1]hept-1-yl}methanesulfonic acid) REF: 45-1718063CAS: 5872-08-2	- - -	1,371.00 €	Tue 15 Oct 24
Urea REF: 45-1706698CAS: 57-13-6	- - -	434.00 €	Tue 15 Oct 24
Zidovudine Related Compound B (3'-chloro-3'-deoxythymidine) REF: 45-1724521CAS: 25526-94-7	- - -	1,371.00 €	Tue 15 Oct 24
Cefuroxime Axetil E-isomers ((1RS,6R,7R)-1-Acetoxyethyl 3-[(carbamoyloxy)methyl]-7-[(E)-2-(furan-2-yl)-2-(methoxyimino)acetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate) REF: 45-1098253CAS: 97232-96-7	- - -	1,411.00 €	Tue 15 Oct 24
Flurazepam Related Compound F (7-chloro-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one) REF: 45-1285603CAS: 2886-65-9	- - -	1,292.00 €	Tue 15 Oct 24
Doxepin Related Compound C ((E,Z)-3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methylpropan-1-amine hydrochloride) REF: 45-1225533CAS: 2887-91-4	- - -	1,371.00 €	Tue 15 Oct 24
Balsalazide Related Compound A ((E)-5-[(p-Carboxyphenyl)azo]-2-salicylic acid, disodium salt) REF: 45-1048266CAS: 2922985-15-5	- - -	815.00 €	Tue 15 Oct 24
Flurazepam Related Compound C (5-Chloro-2-(2-diethylaminoethylamino)-2'-fluorobenzophenone hydrochloride) REF: 45-1285308CAS: 19347-55-8	- - -	617.00 €	Tue 15 Oct 24

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Tropicamide Related Compound A (N-(pyridin-4-ylmethyl)ethanamine)

CAS:33403-97-3

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₈H₁₂N₂

Color and Shape:

Liquid

Molecular weight:

136.10005

Ref: 45-1699016

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Cyclophosphamide

CAS:6055-19-2

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

Formula:

C₇H₁₅Cl₂N₂O₂P·H₂O

Color and Shape:

White Powder

Molecular weight:

278.03538

Ref: 45-1157002

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Vecuronium Bromide Related Compound C (Piperidinium, 1-[(2β,3α,5α,16β,17β)-3,17-dihydroxy-2-(1-piperidinyl) androstan-16-yl]-1-methyl bromide)

CAS:73319-30-9

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₃₀H₅₃BrN₂O₂

Color and Shape:

White Off-White Powder

Molecular weight:

552.32904

Ref: 45-1711188

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Fluorouracil Related Compound A (Pyrimidine-2,4,6(1H,3H,5H)-trione)

CAS:67-52-7

Malonylurea (barbituric acid) and its salts

Formula:

C₄H₄N₂O₃

Color and Shape:

White Powder

Molecular weight:

128.02219

Ref: 45-1279019

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Rufinamide Related Compound A (1-(2-Fluorobenzyl)-1H-1,2,3-triazole-4-carboxamide)

CAS:106308-41-2

Aromatic or modified aromatic heterocyclic compounds wi

Formula:

C₁₀H₉FN₄O

Color and Shape:

White Powder

Molecular weight:

220.07604

Ref: 45-1606412

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Omeprazole Related Compounds F and G Mixture

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

Formula:

C₁₆H₁₃N₃O₂S

Color and Shape:

Dark Brown Powder

Molecular weight:

311.07285

Ref: 45-1478491

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tinidazole Related Compound B (1-(2-ethyl-sulfonylethyl)-2-methyl-4-nitroimidazole)

CAS:25459-12-5

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

Formula:

C₈H₁₃N₃O₄S

Color and Shape:

Off-White Cream Powder

Molecular weight:

247.06268

Ref: 45-1667541

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one)

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Loratadine Related Compound C (8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one)

CAS:31251-41-9

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

Formula:

C₁₄H₁₀ClNO

Color and Shape:

Light Yellow Powder

Molecular weight:

243.04509

Ref: 45-1370269

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ziprasidone Related Compound F (Sodium 2-(2-amino-5-{2-[4-(benzo[d]isothiazol-3-yl)piperazin-1-yl]ethyl}-4-chlorophenyl)acetate monohydrate)

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

Formula:

C₂₁H₂₂ClN₄NaO₂S·H₂O

Color and Shape:

White Off-White Solid

Molecular weight:

470.11553

Ref: 45-1724474

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Azithromycin N-Oxide

CAS:90503-06-3

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

Formula:

C₃₈H₇₂N₂O₁₃

Color and Shape:

White Crystalline Powder

Molecular weight:

764.50344

Ref: 45-1046090

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Meloxicam Related Compound A (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate- 1,1-dio…

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Meloxicam Related Compound A (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate- 1,1-dioxide)

CAS:24683-26-9

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

Formula:

C₁₂H₁₃NO₅S

Color and Shape:

White Solid

Molecular weight:

283.05144

Ref: 45-1379412

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Paliperidone Related Compound D (4-(6-Fluorobenzo[d]isoxazol-3-yl)-1-[2-(9-hydroxy-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl]piperidine 1-oxide)

CAS:761460-08-6

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

Formula:

C₂₃H₂₇FN₄O₄

Color and Shape:

White Powder

Molecular weight:

442.20163

Ref: 45-1491842

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Voriconazole Related Compound F ({(1RS,4SR)-7,7-Dimethyl-2-oxobicyclo[2.2.1]hept-1-yl}methanesulfo…

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Voriconazole Related Compound F ({(1RS,4SR)-7,7-Dimethyl-2-oxobicyclo[2.2.1]hept-1-yl}methanesulfonic acid)

CAS:5872-08-2

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

Formula:

C₁₀H₁₆O₄S

Color and Shape:

White Powder

Molecular weight:

232.07693

Ref: 45-1718063

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Urea

CAS:57-13-6

Urea, whether or not in aqueous solution

Formula:

CH₄N₂O

Color and Shape:

White Powder Crystals

Molecular weight:

60.03236

Ref: 45-1706698

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Zidovudine Related Compound B (3'-chloro-3'-deoxythymidine)

CAS:25526-94-7

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

Formula:

C₁₀H₁₃ClN₂O₄

Color and Shape:

White Off-White Powder

Molecular weight:

260.05638

Ref: 45-1724521

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Cefuroxime Axetil E-isomers ((1RS,6R,7R)-1-Acetoxyethyl 3-[(carbamoyloxy)methyl]-7-[(E)-2-(furan-2-yl)-2-(methoxyimino)acetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate)

CAS:97232-96-7

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

Formula:

C₂₀H₂₂N₄O₁₀S

Color and Shape:

Pale Yellow Powder

Molecular weight:

510.10566

Ref: 45-1098253

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Flurazepam Related Compound F (7-chloro-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one)

CAS:2886-65-9

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

Formula:

C₁₅H₁₀ClFN₂O

Color and Shape:

White Powder

Molecular weight:

288.04657

Ref: 45-1285603

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Doxepin Related Compound C ((E,Z)-3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methylpropan-1-amine hydrochloride)

CAS:2887-91-4

Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi

Formula:

C₁₈H₁₉NO·HCl

Color and Shape:

Cream Powder

Molecular weight:

265.14666

Ref: 45-1225533

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Balsalazide Related Compound A ((E)-5-[(p-Carboxyphenyl)azo]-2-salicylic acid, disodium salt)

CAS:2922985-15-5

Diazo-, azo-, or azoxy-compounds

Formula:

C₁₄H₈N₂Na₂O₅

Color and Shape:

Orange Powder

Molecular weight:

330.02286

Ref: 45-1048266

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Flurazepam Related Compound C (5-Chloro-2-(2-diethylaminoethylamino)-2'-fluorobenzophenone hydrochloride)

CAS:19347-55-8

Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; …

Formula:

C₁₉H₂₂ClFN₂O·HCl

Color and Shape:

Yellow Crystalline Powder

Molecular weight:

384.11715

Ref: 45-1285308

Estimated delivery in United States, on Tuesday 15 Oct 2024

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