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
Temozolomide Related Compound C (diphenylcarbamic chloride) REF: 45-1643576CAS: 83-01-2	- - -	687.00 €	Tue 15 Oct 24
Drometrizole Trisiloxane Related Compound B (2-(2H-Benzotriazol-2-yl)-6-(isobuten-3-yl)-p-cresol) REF: 45-1228031CAS: 98809-58-6	- - -	581.00 €	Tue 15 Oct 24
Imiquimod Related Compound A (1-Isobutyl-1H-imidazo[4,5-c]quinoline) REF: 45-1338324CAS: 99010-24-9	- - -	1,477.00 €	Tue 15 Oct 24
Diphenhydramine Related Compound B (3-(benzhydryloxy)propane-1,2-diol) REF: 45-1218027CAS: 19574-66-4	- - -	1,145.00 €	Tue 15 Oct 24
Meclizine Related Compound A (4-Chlorobenzhydrol) REF: 45-1377010CAS: 119-56-2	- - -	1,477.00 €	Tue 15 Oct 24
Clonidine Related Compound C (Methyl N'-(2,6-dichlorophenyl)carbamimidothioate) REF: 45-1140445CAS: 27806-81-1	- - -	1,357.00 €	Tue 15 Oct 24
Ethyl 3-Aminocrotonate (Ethyl (Z)-3-aminobut-2-enoate) REF: 45-1021077CAS: 626-34-6	- - -	2,249.00 €	Tue 15 Oct 24
Clomipramine Related Compound A (N1-[3-(3-Chloro-10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)propyl]-N1,N3,N3-trimethylpropane-1,3-diamine dihydrochloride) REF: 45-1140258CAS: 2305824-51-3	- - -	1,292.00 €	Tue 15 Oct 24
Clomiphene Related Compound A ((E,Z)-2-[4-(1,2-Diphenylethenyl)phenoxy]-N,N-diethylethanamine hydrochloride) REF: 45-1140101	- - -	1,552.00 €	Tue 15 Oct 24
Ecamsule Related Compound C (terephthalic acid) REF: 45-1231637CAS: 100-21-0	- - -	1,292.00 €	Tue 15 Oct 24
Frovatriptan Racemate REF: 45-1286402CAS: 147009-08-3	- - -	847.00 €	Tue 15 Oct 24
Quinapril Related Compound A (Ethyl [3S-[(2R*), 3a, 11ab]]-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetate) REF: 45-1593412CAS: 103733-49-9	- - -	1,477.00 €	Tue 15 Oct 24
Epoprostenol Related Compound B (Sodium 5-(diphenylphosphinoyl)pentanoate) REF: 45-1237622	- - -	581.00 €	Tue 15 Oct 24
Abacavir Related Compound D (N6-Cyclopropyl-9-{(1R,4S)-4-[(2,5-diamino-6-chloropyrimidin-4-yloxy)methyl]cyclopent-2-enyl}-9H-purine-2,6-diamine) REF: 45-1000437CAS: 1443421-69-9	- - -	1,552.00 €	Tue 15 Oct 24
Linezolid Related Compound B ((S)-N-{[3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl]methyl}thioacetamide) REF: 45-1367581CAS: 216868-57-4	- - -	1,477.00 €	Tue 15 Oct 24
Gabapentin Related Compound B ((1-cyanocyclohexyl)acetic acid) REF: 45-1287347CAS: 133481-09-1	- - -	1,371.00 €	Tue 15 Oct 24
Oxaliplatin Related Compound F ([SP-4-2-(1R-trans)]-(1,2-cyclohexanediamine-N,N') diiodidoplatinum(II)) REF: 45-1481260CAS: 66845-32-7	- - -	To inquire	Tue 15 Oct 24
Testosterone Cypionate Related Compound A (Androst-4-en-3,6-dione-17β-yl 3-cyclopentylpropanoate) REF: 45-1647012	- - -	887.00 €	Tue 15 Oct 24
Mirtazapine Related Compound B (1,2,3,4,10,14b-Hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine 2-oxide monohydrate) REF: 45-1444235CAS: 155172-12-6	- - -	1,439.00 €	Tue 15 Oct 24
Dipivefrin Related Compound E (4-[(Methylamino)acetyl]-1,2-phenylene dipivalate hydrochloride) REF: 45-1220357CAS: 52365-63-6	- - -	1,292.00 €	Tue 15 Oct 24

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Temozolomide Related Compound C (diphenylcarbamic chloride)

CAS:83-01-2

Aromatic cyclic amides (including cyclic carbamates) an

Formula:

C₁₃H₁₀ClNO

Color and Shape:

Powder

Molecular weight:

231.04509

Ref: 45-1643576

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Drometrizole Trisiloxane Related Compound B (2-(2H-Benzotriazol-2-yl)-6-(isobuten-3-yl)-p-cresol)

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Drometrizole Trisiloxane Related Compound B (2-(2H-Benzotriazol-2-yl)-6-(isobuten-3-yl)-p-cresol)

CAS:98809-58-6

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₁₇H₁₇N₃O

Color and Shape:

Pale Yellow Powder

Molecular weight:

279.13716

Ref: 45-1228031

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Imiquimod Related Compound A (1-Isobutyl-1H-imidazo[4,5-c]quinoline)

CAS:99010-24-9

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

Formula:

C₁₄H₁₅N₃

Color and Shape:

Light Brown Powder

Molecular weight:

225.1266

Ref: 45-1338324

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Diphenhydramine Related Compound B (3-(benzhydryloxy)propane-1,2-diol)

CAS:19574-66-4

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

Formula:

C₁₆H₁₈O₃

Color and Shape:

Solid

Molecular weight:

258.12559

Ref: 45-1218027

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Meclizine Related Compound A (4-Chlorobenzhydrol)

CAS:119-56-2

Compounds containing a pyrimidine ring (whether or not

Formula:

C₁₃H₁₁ClO

Color and Shape:

White Powder

Molecular weight:

218.04984

Ref: 45-1377010

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Clonidine Related Compound C (Methyl N'-(2,6-dichlorophenyl)carbamimidothioate)

CAS:27806-81-1

Other aromatic organo-sulfur compounds (excluding pesticides)

Formula:

C₈H₈Cl₂N₂S

Color and Shape:

Light Orange Yellow Light Brown Powder

Molecular weight:

233.97852

Ref: 45-1140445

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ethyl 3-Aminocrotonate (Ethyl (Z)-3-aminobut-2-enoate)

CAS:626-34-6

Amino-acids (excluding aromatic) and their esters other than those containing more than one kind of …

Formula:

C₆H₁₁NO₂

Color and Shape:

Colorless Pale Yellow Liquid At Room Temperature

Molecular weight:

129.07898

Ref: 45-1021077

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Clomipramine Related Compound A (N1-[3-(3-Chloro-10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)propyl]-N1,N3,N3-trimethylpropane-1,3-diamine dihydrochloride)

CAS:2305824-51-3

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

Formula:

C₂₃H₃₂ClN₃·2HCl

Color and Shape:

White Solid

Molecular weight:

457.18183

Ref: 45-1140258

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Clomiphene Related Compound A ((E,Z)-2-[4-(1,2-Diphenylethenyl)phenoxy]-N,N-diethylethanamine hydrochloride)

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

Formula:

C₂₆H₂₉NO·HCI

Color and Shape:

White Powder

Molecular weight:

511.13721

Ref: 45-1140101

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ecamsule Related Compound C (terephthalic acid)

CAS:100-21-0

Terephthalic acid and its salts

Formula:

C₈H₆O₄

Color and Shape:

White Off-White Solid

Molecular weight:

166.13

Ref: 45-1231637

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Frovatriptan Racemate

CAS:147009-08-3

Analgesics, antipyretics and non-hormonal anti-inflamma

Formula:

C₁₄H₁₇N₃O

Molecular weight:

243.13716

Ref: 45-1286402

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Quinapril Related Compound A (Ethyl [3S-[(2R*), 3a, 11ab]]-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetate)

CAS:103733-49-9

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

Formula:

C₂₅H₂₈N₂O₄

Color and Shape:

White Powder

Molecular weight:

420.20491

Ref: 45-1593412

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Epoprostenol Related Compound B (Sodium 5-(diphenylphosphinoyl)pentanoate)

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

Formula:

C₁₇H₁₈NaO₃P

Color and Shape:

White Powder

Molecular weight:

324.08913

Ref: 45-1237622

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Abacavir Related Compound D (N6-Cyclopropyl-9-{(1R,4S)-4-[(2,5-diamino-6-chloropyrimidin-4-yloxy)methyl]cyclopent-2-enyl}-9H-purine-2,6-diamine)

CAS:1443421-69-9

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

Formula:

C₁₈H₂₁ClN₁₀O

Color and Shape:

Red Orange Brown Powder

Molecular weight:

428.15883

Ref: 45-1000437

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Linezolid Related Compound B ((S)-N-{[3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl]methyl}thioacetamide)

CAS:216868-57-4

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

Formula:

C₁₆H₂₀FN₃O₃S

Color and Shape:

White Solid

Molecular weight:

353.12094

Ref: 45-1367581

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Gabapentin Related Compound B ((1-cyanocyclohexyl)acetic acid)

CAS:133481-09-1

Nitrile function compounds, nesoi

Formula:

C₉H₁₃NO₂

Color and Shape:

Powder

Molecular weight:

167.09463

Ref: 45-1287347

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Oxaliplatin Related Compound F ([SP-4-2-(1R-trans)]-(1,2-cyclohexanediamine-N,N') diiodidoplatinum(II))

CAS:66845-32-7

Inorganic or organic compounds of precious metals, whet

Formula:

C₆H₁₄N₂I₂Pt

Color and Shape:

Powder

Molecular weight:

562.88943

Ref: 45-1481260

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Testosterone Cypionate Related Compound A (Androst-4-en-3,6-dione-17β-yl 3-cyclopentylpropanoate)

Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, …

Formula:

C₂₇H₃₈O₄

Color and Shape:

Off-White Solid

Molecular weight:

426.27701

Ref: 45-1647012

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Mirtazapine Related Compound B (1,2,3,4,10,14b-Hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]be…

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Mirtazapine Related Compound B (1,2,3,4,10,14b-Hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine 2-oxide monohydrate)

CAS:155172-12-6

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

Formula:

C₁₇H₁₉N₃O·H₂O

Color and Shape:

Off-White Powder

Molecular weight:

299.36

Ref: 45-1444235

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Dipivefrin Related Compound E (4-[(Methylamino)acetyl]-1,2-phenylene dipivalate hydrochloride)

CAS:52365-63-6

Aromatic amino-alcohol-phenols, aromatic amino-acid-phenols and other aromatic amino compounds with oxygen function

Formula:

C₁₉H₂₇NO₅

Color and Shape:

Solid

Molecular weight:

349.18892

Ref: 45-1220357

Estimated delivery in United States, on Tuesday 15 Oct 2024

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