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
Indomethacin Related Compound A (2-(5-methoxy-2-methyl-1H-indol-3-yl)acetic acid) REF: 45-1417113CAS: 2882-15-7	- - -	1,477.00 €	Tue 03 Dec 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 03 Dec 24
Phentermine Related Compound C ((2-Methylprop-1-en-1-yl)benzene) REF: 45-1528534CAS: 768-49-0	- - -	2,204.00 €	Tue 03 Dec 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 03 Dec 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 03 Dec 24
Temozolomide Related Compound C (diphenylcarbamic chloride) REF: 45-1643576CAS: 83-01-2	- - -	687.00 €	Tue 03 Dec 24
Ropinirole Related Compound B (4-[2-(Dipropylamino)ethyl]indoline-2,3-dione hydrochloride) REF: 45-1605227CAS: 221264-21-7	- - -	1,477.00 €	Tue 03 Dec 24
Nefazodone Related Compound A (1-(3-chlorophenyl)-4-(3-chloropropyl)-piperazine hydrochloride) REF: 45-1457913CAS: 57059-62-8	- - -	793.00 €	Tue 03 Dec 24
Prostaglandin B1 ((13E,15S)-15-Hydroxy-9-oxoprosta-8(12),13-dien-1-oic acid) REF: 45-1578554CAS: 13345-51-2	- - -	3,680.00 €	Tue 03 Dec 24
Amiloride Related Compound A (Methyl 3,5-diamino-6-chloropyrazine-2-carboxylate) REF: 45-1019712CAS: 1458-01-1	- - -	1,299.00 €	Tue 03 Dec 24
Nevirapine Related Compound A (5,11-dihydro-6H-11-ethyl-4-methyl-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one) REF: 45-1460725CAS: 133627-17-5	- - -	1,477.00 €	Tue 03 Dec 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 03 Dec 24
Imiquimod Related Compound A (1-Isobutyl-1H-imidazo[4,5-c]quinoline) REF: 45-1338324CAS: 99010-24-9	- - -	1,477.00 €	Tue 03 Dec 24
D-Valacyclovir (D-Valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy] ethyl ester) REF: 45-1707817CAS: 142963-60-8	- - -	1,411.00 €	Tue 03 Dec 24
Diphenhydramine Related Compound B (3-(benzhydryloxy)propane-1,2-diol) REF: 45-1218027CAS: 19574-66-4	- - -	1,145.00 €	Tue 03 Dec 24
Meclizine Related Compound A (4-Chlorobenzhydrol) REF: 45-1377010CAS: 119-56-2	- - -	1,477.00 €	Tue 03 Dec 24
Latanoprost Related Compound E ((Z)-7-{(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl}-5-heptenoic acid) REF: 45-1357533CAS: 41639-83-2	- - -	1,797.00 €	Tue 03 Dec 24
Carmustine Related Compound A (1,3-bis(2-chloroethyl)urea) REF: 45-1096735CAS: 2214-72-4	- - -	1,477.00 €	Tue 03 Dec 24
Clonidine Related Compound C (Methyl N'-(2,6-dichlorophenyl)carbamimidothioate) REF: 45-1140445CAS: 27806-81-1	- - -	1,357.00 €	Tue 03 Dec 24
Ethyl 3-Aminocrotonate (Ethyl (Z)-3-aminobut-2-enoate) REF: 45-1021077CAS: 626-34-6	- - -	2,249.00 €	Tue 03 Dec 24

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Indomethacin Related Compound A (2-(5-methoxy-2-methyl-1H-indol-3-yl)acetic acid)

CAS:2882-15-7

Aromatic or modified aromatic drugs with nitrogen hetero

Formula:

C₁₂H₁₃NO₃

Color and Shape:

Light Yellow Crystalline Powder

Molecular weight:

219.08954

Ref: 45-1417113

Estimated delivery in United States, on Tuesday 3 Dec 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 3 Dec 2024

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Phentermine Related Compound C ((2-Methylprop-1-en-1-yl)benzene)

CAS:768-49-0

Cyclic hydrocarbons not elsewhere specified or included

Formula:

C₁₀H₁₂

Color and Shape:

Colorless Liquid

Molecular weight:

132.0939

Ref: 45-1528534

Estimated delivery in United States, on Tuesday 3 Dec 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:

264.2

Ref: 45-1347518

Estimated delivery in United States, on Tuesday 3 Dec 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 3 Dec 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:

231.68

Ref: 45-1643576

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Ropinirole Related Compound B (4-[2-(Dipropylamino)ethyl]indoline-2,3-dione hydrochloride)

CAS:221264-21-7

Lactams not elsewhere specified or included

Formula:

C₁₆H₂₂N₂O₂·HCl

Color and Shape:

Red Brown Powder

Molecular weight:

274.16813

Ref: 45-1605227

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Nefazodone Related Compound A (1-(3-chlorophenyl)-4-(3-chloropropyl)-piperazine hydrochloride)

CAS:57059-62-8

Compounds containing a pyrimidine ring (whether or not

Formula:

C₁₃H₁₈Cl₂N₂·HCl

Color and Shape:

White Powder

Molecular weight:

272.0847

Ref: 45-1457913

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Prostaglandin B1 ((13E,15S)-15-Hydroxy-9-oxoprosta-8(12),13-dien-1-oic acid)

CAS:13345-51-2

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

Formula:

C₂₀H₃₂O₄

Color and Shape:

White Off-White Solid

Molecular weight:

336.23006

Ref: 45-1578554

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Amiloride Related Compound A (Methyl 3,5-diamino-6-chloropyrazine-2-carboxylate)

CAS:1458-01-1

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₆H₇ClN₄O₂

Color and Shape:

Powder

Molecular weight:

202.02575

Ref: 45-1019712

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Nevirapine Related Compound A (5,11-dihydro-6H-11-ethyl-4-methyl-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one)

CAS:133627-17-5

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₁₄H₁₄N₄O

Color and Shape:

Light Yellow Off-White Crystalline Powder

Molecular weight:

254.11676

Ref: 45-1460725

Estimated delivery in United States, on Tuesday 3 Dec 2024

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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 3 Dec 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 3 Dec 2024

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D-Valacyclovir (D-Valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy] ethyl ester)

CAS:142963-60-8

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

Formula:

C₁₃H₂₀N₆O₄

Color and Shape:

White Fine Powder

Molecular weight:

324.1546

Ref: 45-1707817

Estimated delivery in United States, on Tuesday 3 Dec 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 3 Dec 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 3 Dec 2024

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Latanoprost Related Compound E ((Z)-7-{(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl}-5-heptenoic acid)

CAS:41639-83-2

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

Formula:

C₂₃H₃₄O₅

Color and Shape:

Yellow Liquid

Molecular weight:

390.24062

Ref: 45-1357533

Estimated delivery in United States, on Tuesday 3 Dec 2024

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Carmustine Related Compound A (1,3-bis(2-chloroethyl)urea)

CAS:2214-72-4

Acyclic amides (including acyclic carbamates) and their derivatives and salts thereof, nesoi

Formula:

C₅H₁₀Cl₂N₂O

Color and Shape:

White Powder

Molecular weight:

184.01702

Ref: 45-1096735

Estimated delivery in United States, on Tuesday 3 Dec 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 3 Dec 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 3 Dec 2024

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