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.

20
- 50
- 100
- 200

products per page. 4290 products on this category.

Product data	Purity	Price range	Estimated delivery
Fluorouracil Related Compound F (2-Ethoxy-5-fluoropyrimidin-4(1H)-one) REF: 45-1279065CAS: 56177-80-1	- - -	1,371.00 €	Tue 03 Dec 24
Bupropion Related Compound G (2-Bromo-1-(3-chlorophenyl)propan-1-one) REF: 45-1078857CAS: 34911-51-8	- - -	1,495.00 €	Tue 03 Dec 24
Bupropion Hydrochloride Related Compound C (1-(3-chlorophenyl)-2-hydroxypropan-1-one) REF: 45-1078766CAS: 152943-33-4	- - -	1,739.00 €	Tue 03 Dec 24
Almotriptan Related Compound B (2-{5-[(pyrrolidin-1-ylsulfonyl)methyl]-1H-indol-3-yl}ethanamine hemifumarate) REF: 45-1013545CAS: 1246860-65-0	- - -	931.00 €	Tue 03 Dec 24
Zolmitriptan Related Compound H (4,4-Diethoxy-N,N-dimethylbutan-1-amine) REF: 45-1727097CAS: 1116-77-4	- - -	1,552.00 €	Tue 03 Dec 24
Lovastatin Epimer Mixture (Epilovastatin and Lovastatin 1:1 Mixture) REF: 45-1236833	- - -	905.00 €	Tue 03 Dec 24
Moexipril Related Compound B ((S)-ethyl 2-{(3S,11aS)-8,9-dimethoxy-3-methyl-1,4-dioxo-3,4-dihydro-1H-pyrazino[1,2-b]isoquinolin-2(6H,11H,11aH)-yl}-4-phenylbutanoate) REF: 45-1445619CAS: 103733-51-3	- - -	581.00 €	Tue 03 Dec 24
Tetracaine Related Compound B (4-(Butylamino)benzoic acid) REF: 45-1650017CAS: 4740-24-3	- - -	1,371.00 €	Tue 03 Dec 24
Bendamustine Related Compound H (4-[5-({2-[(4-{5-[Bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoyl)oxy]ethyl}(2-chloroethyl)amino)-1-methyl-1H-benzimidazol-2-yl]butanoic acid) REF: 45-1065301CAS: 1228551-91-4	- - -	1,357.00 €	Tue 03 Dec 24
Benzphetamine Related Compound E ((1S,2S)-2-[Benzyl(methyl)amino]-1-phenylpropan-1-ol hydrochloride) REF: 45-1059058CAS: 1591807-86-1	- - -	950.00 €	Tue 03 Dec 24
Beclomethasone Dipropionate Related Compound A (9-Chloro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-21-yl propionate) REF: 45-1048517CAS: 69224-79-9	- - -	1,222.00 €	Tue 03 Dec 24
Amoxicillin Related Compound F (3-(4-Hydroxyphenyl)pyrazin-2-ol; phenylpyrazinediol) REF: 45-1031569CAS: 126247-63-0	- - -	1,477.00 €	Tue 03 Dec 24
Dihydrodutasteride (N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide) REF: 45-1200917CAS: 164656-22-8	- - -	1,398.00 €	Tue 03 Dec 24
Moxifloxacin Related Compound E (1-Cyclopropyl-6-fluoro-8-hydroxy-1,4-dihydro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid hydrochloride) REF: 45-1448655	- - -	1,441.00 €	Tue 03 Dec 24
Metaraminol Related Compound A ((E)-1-[3-(benzyloxy)phenyl]-2-(hydroxyimino)propan-1-one) REF: 45-1396036	- - -	1,328.00 €	Tue 03 Dec 24
Praziquantel Related Compound C (2-(N-formylhexahydrohippuroyl)-1,2,3,4-tetrahydroisoquinolin-1-one) REF: 45-1554670CAS: 125273-88-3	- - -	1,477.00 €	Tue 03 Dec 24
Ranitidine Related Compound C (N-[2-[[[5-[(dimethylamino)methyl]-2-furanyl]methyl]sulfinyl]ethyl]-N-methyl-2-nitro-1,1-ethenediamine) REF: 45-1598700CAS: 73851-70-4	- - -	1,371.00 €	Tue 03 Dec 24
Irinotecan Related Compound E ((S)-4,11-Diethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione) REF: 45-1347664CAS: 78287-27-1	- - -	1,371.00 €	Tue 03 Dec 24
Miconazole Related Compound C (2-[(2,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethan-1-amine hydrochloride) REF: 45-1443431	- - -	1,477.00 €	Tue 03 Dec 24
Zolmitriptan Related Compound B ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol) REF: 45-1727031CAS: 139264-69-0	- - -	1,441.00 €	Tue 03 Dec 24

+ info

Fluorouracil Related Compound F (2-Ethoxy-5-fluoropyrimidin-4(1H)-one)

CAS:56177-80-1

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

Formula:

C₆H₇FN₂O₂

Color and Shape:

White Off-White Powder

Molecular weight:

158.04916

Ref: 45-1279065

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Bupropion Related Compound G (2-Bromo-1-(3-chlorophenyl)propan-1-one)

CAS:34911-51-8

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

Formula:

C₉H₈BrClO

Color and Shape:

Yellow Pale Yellow Liquid

Molecular weight:

245.94471

Ref: 45-1078857

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Bupropion Hydrochloride Related Compound C (1-(3-chlorophenyl)-2-hydroxypropan-1-one)

CAS:152943-33-4

Ether-phenols, ether-alcohol-phenols and their halogena

Formula:

C₉H₉O₂Cl

Color and Shape:

Liquid

Molecular weight:

184.02911

Ref: 45-1078766

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Almotriptan Related Compound B (2-{5-[(pyrrolidin-1-ylsulfonyl)methyl]-1H-indol-3-yl}ethanamine hemifumarate)

CAS:1246860-65-0

Aromatic or modified aromatic drugs with nitrogen hetero

Formula:

C₁₅H₂₁N₃O₂S·C₄H₄O₄

Color and Shape:

Powder

Molecular weight:

307.13545

Ref: 45-1013545

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Zolmitriptan Related Compound H (4,4-Diethoxy-N,N-dimethylbutan-1-amine)

CAS:1116-77-4

Non-aromatic amino-compounds with oxygen function

Formula:

C₁₀H₂₃NO₂

Color and Shape:

Clear Colorless Liquid

Molecular weight:

189.17288

Ref: 45-1727097

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Lovastatin Epimer Mixture (Epilovastatin and Lovastatin 1:1 Mixture)

Lactones nesoi

Formula:

C₂₄H₃₆O₅

Color and Shape:

Powder

Molecular weight:

404.25627

Ref: 45-1236833

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Moexipril Related Compound B ((S)-ethyl 2-{(3S,11aS)-8,9-dimethoxy-3-methyl-1,4-dioxo-3,4-dihydro-1H-pyrazino[1,2-b]isoquinolin-2(6H,11H,11aH)-yl}-4-phenylbutanoate)

CAS:103733-51-3

Compounds (excluding drugs and pesticides) containing a

Formula:

C₂₇H₃₂N₂O₆

Color and Shape:

Off-White Solid

Molecular weight:

480.22604

Ref: 45-1445619

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Tetracaine Related Compound B (4-(Butylamino)benzoic acid)

CAS:4740-24-3

Aromatic amino-acids and their esters,other than those

Formula:

C₁₁H₁₅NO₂

Color and Shape:

White Cream Powder

Molecular weight:

193.11028

Ref: 45-1650017

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Bendamustine Related Compound H (4-[5-({2-[(4-{5-[Bis(2-chloroethyl)amino]-1-methyl-1H-benzimidazol-2-yl}butanoyl)oxy]ethyl}(2-chloroethyl)amino)-1-methyl-1H-benzimidazol-2-yl]butanoic acid)

CAS:1228551-91-4

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

Formula:

C₃₂H₄₁Cl₃N₆O₄

Color and Shape:

Off-White Yellow Orange Solid

Molecular weight:

678.22549

Ref: 45-1065301

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Benzphetamine Related Compound E ((1S,2S)-2-[Benzyl(methyl)amino]-1-phenylpropan-1-ol hydrochloride)

CAS:1591807-86-1

Aromatic drugs of amino-alcohols, other than those contg more than one kind of oxygen function, …

Formula:

C₁₇H₂₁NOHCl

Color and Shape:

White Off-White Powder

Molecular weight:

255.16231

Ref: 45-1059058

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Beclomethasone Dipropionate Related Compound A (9-Chloro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-21-yl propionate)

CAS:69224-79-9

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides etc, nesoi

Formula:

C₂₅H₃₃ClO₆

Color and Shape:

White Off-White Powder

Molecular weight:

464.19657

Ref: 45-1048517

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Amoxicillin Related Compound F (3-(4-Hydroxyphenyl)pyrazin-2-ol; phenylpyrazinediol)

CAS:126247-63-0

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

Formula:

C₁₀H₈N₂O₂

Color and Shape:

Yellow Powder

Molecular weight:

188.05858

Ref: 45-1031569

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Dihydrodutasteride (N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide)

CAS:164656-22-8

Lactams not elsewhere specified or included

Formula:

C₂₇H₃₂F₆N₂O₂

Color and Shape:

White Solid

Molecular weight:

530.2368

Ref: 45-1200917

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Moxifloxacin Related Compound E (1-Cyclopropyl-6-fluoro-8-hydroxy-1,4-dihydro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid hydrochloride)

Compounds (excluding drugs and pesticides) containing a quinoline or isoquinoline ring

Formula:

C₂₀H₂₂FN₃O₄·HCl

Color and Shape:

Powder

Molecular weight:

387.15943

Ref: 45-1448655

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Metaraminol Related Compound A ((E)-1-[3-(benzyloxy)phenyl]-2-(hydroxyimino)propan-1-one)

Aromatic imines and their derivatives, salts thereof

Formula:

C₁₆H₁₆NO₃

Color and Shape:

Off-White Solid

Molecular weight:

270.11302

Ref: 45-1396036

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Praziquantel Related Compound C (2-(N-formylhexahydrohippuroyl)-1,2,3,4-tetrahydroisoquinolin-1-one)

CAS:125273-88-3

Lactams not elsewhere specified or included

Formula:

C₁₉H₂₂N₂O₄

Color and Shape:

White Crystalline Powder

Molecular weight:

342.15796

Ref: 45-1554670

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Ranitidine Related Compound C (N-[2-[[[5-[(dimethylamino)methyl]-2-furanyl]methyl]sulfinyl]ethyl]-N-methyl-2-nitro-1,1-ethenediamine)

CAS:73851-70-4

Compounds containing an unfused furan ring (whether or

Formula:

C₁₃H₂₂N₄O₄S

Color and Shape:

Off-White Solid

Molecular weight:

330.13618

Ref: 45-1598700

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Irinotecan Related Compound E ((S)-4,11-Diethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione)

CAS:78287-27-1

Vegetable alkaloids, natural or reproduced by synthesis, their salts and other derivatives, nesoi

Formula:

C₂₂H₂₀N₂O₄

Color and Shape:

Light Brown Powder

Molecular weight:

376.14231

Ref: 45-1347664

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Miconazole Related Compound C (2-[(2,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethan-1-amine hydrochloride)

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

Formula:

C₁₅H₁₃Cl₄NO·HCl

Color and Shape:

Solid

Molecular weight:

398.9518

Ref: 45-1443431

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info

Zolmitriptan Related Compound B ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol)

CAS:139264-69-0

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

Formula:

C₁₅H₂₃N₃O

Color and Shape:

White Solid

Molecular weight:

261.18411

Ref: 45-1727031

Estimated delivery in United States, on Tuesday 3 Dec 2024

+ info