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
Frovatriptan Racemate REF: 45-1286402CAS: 147009-08-3	- - -	847.00 €	Tue 15 Oct 24
Ecamsule Related Compound C (terephthalic acid) REF: 45-1231637CAS: 100-21-0	- - -	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
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
Ethyl 3-Aminocrotonate (Ethyl (Z)-3-aminobut-2-enoate) REF: 45-1021077CAS: 626-34-6	- - -	2,249.00 €	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
Meclizine Related Compound A (4-Chlorobenzhydrol) REF: 45-1377010CAS: 119-56-2	- - -	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
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
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
Temozolomide Related Compound C (diphenylcarbamic chloride) REF: 45-1643576CAS: 83-01-2	- - -	687.00 €	Tue 15 Oct 24
Bendamustine Related Compound A (4-{5-[Bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoic acid hydrochloride) REF: 45-1065232CAS: 109882-29-3	- - -	1,537.00 €	Tue 15 Oct 24
Ipratropium Bromide Related Compound A ((1R,3r,5S,8r)-3-Hydroxy-8-isopropyl-8-methyl-8-azabicyclo[3.2.1]octan-8-ium bromide) REF: 45-1347518CAS: 58005-18-8	- - -	1,477.00 €	Tue 15 Oct 24
Zoledronic Acid Related Compound B (1-Hydroxy-2-[1-(2-hydroxy-2,2-diphosphonoethyl)-1H-imidazol-3-ium-3-yl]-1-phosphonoethylphosphonate) REF: 45-1724849CAS: 1627731-61-6	- - -	1,627.00 €	Tue 15 Oct 24
Metaxalone Related Compound A (4-((3,5-dimethylphenoxy)methyl)imidazolidin-2-one) REF: 45-1396150	- - -	815.00 €	Tue 15 Oct 24
Ethinyl Estradiol Related Compound B (19-Nor-17α-pregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol monohydrate) REF: 45-1260023CAS: 1231-96-5	- - -	1,411.00 €	Tue 15 Oct 24
Zileuton Related Compound A (N-(1-Benzo[b]thien-2-ylethyl) urea) REF: 45-1724667CAS: 171370-49-3	- - -	1,379.00 €	Tue 15 Oct 24
Pyridostigmine Related Compound A (Pyridin-3-yl dimethylcarbamate) REF: 45-1586020CAS: 51581-32-9	- - -	1,371.00 €	Tue 15 Oct 24
Pyrazinamide Related Compound B (Pyrazinecarbonitrile) REF: 45-1585028CAS: 19847-12-2	- - -	1,222.00 €	Tue 15 Oct 24
Triclocarban Related Compound A (1,3-Bis(4-chlorophenyl)urea) REF: 45-1681815CAS: 1219-99-4	- - -	581.00 €	Tue 15 Oct 24

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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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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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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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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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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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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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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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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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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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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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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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Bendamustine Related Compound A (4-{5-[Bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoic acid hydrochloride)

CAS:109882-29-3

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

Formula:

C₁₆H₂₃N₃O₄HCl

Color and Shape:

White Solid

Molecular weight:

357.83

Ref: 45-1065232

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ipratropium Bromide Related Compound A ((1R,3r,5S,8r)-3-Hydroxy-8-isopropyl-8-methyl-8-azabicyclo[3.2.1]octan-8-ium bromide)

CAS:58005-18-8

Other alkaloids,natural or reproduced by synthesis, and their salts, ethers,esters&other derivatives, nesoi

Formula:

C₁₁H₂₂BrNO

Color and Shape:

White Powder

Molecular weight:

263.08848

Ref: 45-1347518

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Zoledronic Acid Related Compound B (1-Hydroxy-2-[1-(2-hydroxy-2,2-diphosphonoethyl)-1H-imidazol-3-ium-3-yl]-1-phosphonoethylphosphonate)

CAS:1627731-61-6

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

Formula:

C₇H₁₆N₂O₁₄P₄

Color and Shape:

White Powder

Molecular weight:

475.9552

Ref: 45-1724849

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Metaxalone Related Compound A (4-((3,5-dimethylphenoxy)methyl)imidazolidin-2-one)

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

Formula:

C₁₂H₁₆N₂O₂

Color and Shape:

Powder

Molecular weight:

220.12118

Ref: 45-1396150

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ethinyl Estradiol Related Compound B (19-Nor-17α-pregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol monohydrate)

CAS:1231-96-5

Estrogens and progestins

Formula:

C₂₀H₂₂O₂·H₂O

Color and Shape:

White Yellow Powder

Molecular weight:

312.17254

Ref: 45-1260023

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Zileuton Related Compound A (N-(1-Benzo[b]thien-2-ylethyl) urea)

CAS:171370-49-3

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

Formula:

C₁₁H₁₂N₂OS

Color and Shape:

White Powder

Molecular weight:

220.06703

Ref: 45-1724667

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Pyridostigmine Related Compound A (Pyridin-3-yl dimethylcarbamate)

CAS:51581-32-9

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₈H₁₀N₂O₂

Color and Shape:

Colorless Yellow Liquid

Molecular weight:

166.07423

Ref: 45-1586020

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Pyrazinamide Related Compound B (Pyrazinecarbonitrile)

CAS:19847-12-2

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

Formula:

C₅H₃N₃

Color and Shape:

White Powder

Molecular weight:

105.0327

Ref: 45-1585028

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Triclocarban Related Compound A (1,3-Bis(4-chlorophenyl)urea)

CAS:1219-99-4

Ureines and their derivatives; salts thereof

Formula:

C₁₃H₁₀Cl₂N₂O

Color and Shape:

White Off-White Powder

Molecular weight:

280.01702

Ref: 45-1681815

Estimated delivery in United States, on Tuesday 15 Oct 2024

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