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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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BrandProduct dataPurityPrice rangeEstimated delivery
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(1RS)-1-(6-Methoxy-2-naphthyl)ethanol
REF: 3D-IM25230CAS: 77301-42-9 		Min. 95%172.00 €~1,507.00 €Tue 28 Jan 25
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Amlodipine besilate impurity B
REF: 3D-IA63611CAS: 721958-72-1 		Min. 95%136.00 €~569.00 €Tue 28 Jan 25
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5-Deoxy-Δ5,6-8-epi-tacrolimus
REF: 3D-ID183168CAS: 129212-37-9 		Min. 95%To inquireTue 28 Jan 25
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N-(Aminosulphonyl)-2-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methylsulphinyl]propanimidamide
REF: 3D-IA58086CAS: 109467-06-3 		Min. 95%To inquireTue 28 Jan 25
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4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester
REF: 3D-IT145543CAS: 53531-01-4 		Min. 95%To inquireTue 28 Jan 25
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(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone
REF: 3D-IC20310CAS: 154356-96-4 		Min. 95%To inquireTue 28 Jan 25
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Fluorometholone δ 9,11
REF: 3D-IF168680CAS: 110664-42-1 		Min. 95%To inquireTue 28 Jan 25
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rac-3-Deacetyl-3-butanoyl acebutolol hydrochloride
REF: 3D-IR27447CAS: 57898-71-2 		Min. 95%To inquireTue 28 Jan 25
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Carbidopa Impurity 2
REF: 3D-FH177505CAS: 1361017-74-4 		Min. 95%801.00 €~5,565.00 €Tue 28 Jan 25
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trans-trans-4,4'-Iminodimethylenedi(cyclohexanecarboxylic acid)
REF: 3D-II72042CAS: 93940-19-3 		Min. 95%480.00 €~3,443.00 €Tue 28 Jan 25
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Cinacalcet impurity E hydrochloride
REF: 3D-IC106470CAS: 253337-60-9 		Min. 95%To inquireTue 28 Jan 25
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(3-endo)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine
REF: 3D-IE22671CAS: 76272-56-5 		Min. 95%To inquireTue 28 Jan 25
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N-Formyl-D-leucine (1R)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]dodecyl ester
REF: 3D-IF26577CAS: 1225451-00-2 		Min. 95%To inquireTue 28 Jan 25
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Methotrexate-5-monomethyl ester
REF: 3D-IM71453CAS: 67022-39-3 		Min. 95%108.00 €~1,047.00 €Tue 28 Jan 25
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NMP-ACA (cefepime impurity)
REF: 3D-IN26393CAS: 103296-32-8 		Min. 95%To inquireTue 28 Jan 25
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Tiotropium Bromide EP Impurity G
REF: 3D-IT173171CAS: 1508-46-9 		Min. 95%To inquireTue 28 Jan 25
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(RS)-N-[(1-Ethylpyrrolidin-2-yl)methyl]-2-hydroxy-5-sulphamoylbenzamide
REF: 3D-IE145489CAS: 67381-52-6 		Min. 95%To inquireTue 28 Jan 25
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(5E)-2,2-Dimethyl-7-[(1-naphthalenylmethyl)amino]-5-hepten-3-ynoic acid
REF: 3D-ID21358CAS: 99473-15-1 		Min. 95%To inquireTue 28 Jan 25
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Cefdinir impurity H
REF: 3D-IC138541		Min. 95%To inquireTue 28 Jan 25
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N-(4-Amino-6,7-dimethoxyquinazol-2-yl)-N-methylpropylenediamine hydrochloride
REF: 3D-FA17652CAS: 81403-69-2 		Min. 95%To inquireTue 28 Jan 25
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(1RS)-1-(6-Methoxy-2-naphthyl)ethanol
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(1RS)-1-(6-Methoxy-2-naphthyl)ethanol

CAS:77301-42-9
(1RS)-1-(6-Methoxy-2-naphthyl)ethanol is a multiphase test drug that exhibits reactive properties. It reacts with hydrogen to …
Formula:
C13H14O2
Purity:
Min. 95%
Molecular weight:
202.25 g/mol

Ref: 3D-IM25230

2g172.00 €
5g310.00 €
10g453.00 €
25g986.00 €
50g1,507.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Amlodipine besilate impurity B
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Amlodipine besilate impurity B

CAS:721958-72-1
Amlodipine besilate impurity B is a metabolite of amlodipine besilate. It is an impurity that …
Formula:
C29H32ClN3O7
Purity:
Min. 95%
Molecular weight:
570 g/mol

Ref: 3D-IA63611

2mg136.00 €
5mg189.00 €
10mg273.00 €
25mg400.00 €
50mg569.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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5-Deoxy-Δ5,6-8-epi-tacrolimus
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5-Deoxy-Δ5,6-8-epi-tacrolimus

CAS:129212-37-9
Please enquire for more information about 5-Deoxy-Δ5,6-8-epi-tacrolimus including the price, delivery time and more detailed …
Formula:
C44H67NO11
Purity:
Min. 95%
Molecular weight:
786 g/mol

Ref: 3D-ID183168

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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N-(Aminosulphonyl)-2-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methylsulphinyl]propanimidamide
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N-(Aminosulphonyl)-2-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methylsulphinyl]propanimidamide

CAS:109467-06-3
N-(Aminosulphonyl)-2-[[[2-[(aminoiminomethyl)amino]-4-thiazolyl]methylsulphinyl]propanimidamide (NTSX) is an analytical standard and a metabolite of the drug product N-(aminosulphonyl)-2-[[[2-[(aminothiazolyl)methyl]sulfinyl]propanimidamide (NTST). …
Formula:
C8H15N7O3S3·C4H4O4
Purity:
Min. 95%
Molecular weight:
469.52 g/mol

Ref: 3D-IA58086

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester
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4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester

CAS:53531-01-4
4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester is an impurity standard for HPLC. It is a white or …
Formula:
C17H26N2O5
Purity:
Min. 95%
Molecular weight:
338.4 g/mol

Ref: 3D-IT145543

10mg194.00 €
25mg310.00 €
50mg436.00 €
100mg646.00 €
250mg1,045.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone
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(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone

CAS:154356-96-4
(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone is a drug product that is Custom synthesized to meet the requirements of pharmacopoeia, …
Formula:
C16H15ClO2
Purity:
Min. 95%
Molecular weight:
274.74 g/mol

Ref: 3D-IC20310

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Fluorometholone δ 9,11
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Fluorometholone δ 9,11

Controlled Product
CAS:110664-42-1
Fluorometholone delta 9,11 is a drug product that is used as an analytical reference standard …
Formula:
C22H28O3
Purity:
Min. 95%
Molecular weight:
340.46 g/mol

Ref: 3D-IF168680

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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rac-3-Deacetyl-3-butanoyl acebutolol hydrochloride
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rac-3-Deacetyl-3-butanoyl acebutolol hydrochloride

CAS:57898-71-2
3-Deacetyl-3-butanoyl acebutolol hydrochloride is a racemic mixture of two enantiomers, (+)-(S)-3-Deacetyl-3-butanoyl acebutolol and (-)-(R)-3-Deacetyl-3-butanoyl acebutolol. …
Formula:
C20H33ClN2O4
Purity:
Min. 95%
Molecular weight:
400.94 g/mol

Ref: 3D-IR27447

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Carbidopa Impurity 2
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Carbidopa Impurity 2

Controlled Product
CAS:1361017-74-4
Carbidopa Impurity 2 is an impurity of carbidopa, a drug product that is used to …
Formula:
C11H16N2O4
Purity:
Min. 95%
Molecular weight:
240.26 g/mol

Ref: 3D-FH177505

1mg801.00 €
2mg1,160.00 €
5mg1,855.00 €
10mg2,898.00 €
25mg5,565.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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trans-trans-4,4'-Iminodimethylenedi(cyclohexanecarboxylic acid)
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trans-trans-4,4'-Iminodimethylenedi(cyclohexanecarboxylic acid)

CAS:93940-19-3
Trans-trans-4,4'-Iminodimethylenedi(cyclohexanecarboxylic acid) is a hydrophobic particle that is soluble in water. It has an average …
Formula:
C16H27NO4
Purity:
Min. 95%
Molecular weight:
297.39 g/mol

Ref: 3D-II72042

1mg480.00 €
2mg711.00 €
5mg1,180.00 €
10mg1,786.00 €
25mg3,443.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Cinacalcet impurity E hydrochloride
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Cinacalcet impurity E hydrochloride

CAS:253337-60-9
Cinacalcet is a drug product that is used for the treatment of secondary hyperparathyroidism in …
Formula:
C22H25N·HCl
Purity:
Min. 95%
Molecular weight:
339.9 g/mol

Ref: 3D-IC106470

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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(3-endo)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine
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(3-endo)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine

CAS:76272-56-5
Granisetron is a drug that belongs to the group of serotonin receptor antagonists. It is …
Formula:
C9H18N2
Purity:
Min. 95%
Molecular weight:
154.25 g/mol

Ref: 3D-IE22671

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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N-Formyl-D-leucine (1R)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]dodecyl ester
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N-Formyl-D-leucine (1R)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]dodecyl ester

CAS:1225451-00-2
N-Formyl-D-leucine (1R)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]dodecyl ester is a research and development impurity standard that can be custom synthesized …
Formula:
C29H53NO5
Purity:
Min. 95%
Molecular weight:
495.73 g/mol

Ref: 3D-IF26577

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Methotrexate-5-monomethyl ester
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Methotrexate-5-monomethyl ester

CAS:67022-39-3
Methotrexate-5-monomethyl ester is an analytical standard that is synthesized synthetically. The synthetic route used to …
Formula:
C21H24N8O5
Purity:
Min. 95%
Molecular weight:
468.47 g/mol

Ref: 3D-IM71453

5mg186.00 €
10mg279.00 €
25mg453.00 €
50mg646.00 €
100mg1,047.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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NMP-ACA (cefepime impurity)
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NMP-ACA (cefepime impurity)

CAS:103296-32-8
NMP-ACA is a metabolite of cefepime. It is a synthetic, impurity standard for use in …
Formula:
C13H19N3O3S
Purity:
Min. 95%
Molecular weight:
297.37 g/mol

Ref: 3D-IN26393

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Tiotropium Bromide EP Impurity G
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Tiotropium Bromide EP Impurity G

CAS:1508-46-9
Tiotropium Bromide EP Impurity G is an anticholinergic bronchodilator that is used in the treatment …
Formula:
C9H6BrNO2
Purity:
Min. 95%
Molecular weight:
240.05 g/mol

Ref: 3D-IT173171

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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(RS)-N-[(1-Ethylpyrrolidin-2-yl)methyl]-2-hydroxy-5-sulphamoylbenzamide
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(RS)-N-[(1-Ethylpyrrolidin-2-yl)methyl]-2-hydroxy-5-sulphamoylbenzamide

CAS:67381-52-6
(RS)-N-[(1-Ethylpyrrolidin-2-yl)methyl]-2-hydroxy-5-sulphamoylbenzamide is a white to off-white crystalline powder. It is soluble in methanol and ethanol, …
Formula:
C14H21N3O4S
Purity:
Min. 95%
Molecular weight:
327.4 g/mol

Ref: 3D-IE145489

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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(5E)-2,2-Dimethyl-7-[(1-naphthalenylmethyl)amino]-5-hepten-3-ynoic acid
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(5E)-2,2-Dimethyl-7-[(1-naphthalenylmethyl)amino]-5-hepten-3-ynoic acid

CAS:99473-15-1
The compound (5E)-2,2-dimethyl-7-[(1-naphthalenylmethyl)amino]-5-hepten-3-ynoic acid is a chiral antifungal agent. It was developed to be used …
Formula:
C20H21NO2
Purity:
Min. 95%
Molecular weight:
307.39 g/mol

Ref: 3D-ID21358

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Cefdinir impurity H
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Cefdinir impurity H

Cefdinir impurity H is a metabolite of the drug cefdinir. It is an impurity in …
Formula:
C14H15N5O6S2
Purity:
Min. 95%
Molecular weight:
413.43 g/mol

Ref: 3D-IC138541

10mgTo inquire
Estimated delivery in United States, on Tuesday 28 Jan 2025
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N-(4-Amino-6,7-dimethoxyquinazol-2-yl)-N-methylpropylenediamine hydrochloride
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N-(4-Amino-6,7-dimethoxyquinazol-2-yl)-N-methylpropylenediamine hydrochloride

CAS:81403-69-2
N-(4-Amino-6,7-dimethoxyquinazol-2-yl)-N-methylpropylenediamine hydrochloride is an impurity that can be found in some commercially available drugs. It …
Formula:
C14H22ClN5O2
Purity:
Min. 95%
Molecular weight:
327.81 g/mol

Ref: 3D-FA17652

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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