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Active pharmaceutical ingredient (API) impurities for research

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BrandProduct dataPurityPrice rangeEstimated delivery
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Enalapril maleate impurity A
REF: 3D-IE63754CAS: 1356932-13-2 		Min. 95%400.00 €~2,296.00 €Tue 11 Feb 25
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a-Ribavirin (impurity B)
REF: 3D-NR10396CAS: 57198-02-4 		Min. 95%To inquireTue 11 Feb 25
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Pencyclovir Impurity 1
REF: 3D-FP165992CAS: 100199-40-4 		Min. 95%To inquireTue 11 Feb 25
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Anastrozole dimer impurity - 65%
REF: 3D-IA61497CAS: 1216898-82-6 		Min. 95%To inquireTue 11 Feb 25
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N1.9,N1.9-Dimethyldesmopressin
REF: 3D-ID173217		Min. 95%To inquireTue 11 Feb 25
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Des(oxopentyl) valsartan benzyl ester
REF: 3D-ID21096CAS: 676129-93-4 		Min. 95%To inquireTue 11 Feb 25
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[4-(4-Amino-6-hydroxy-7-methoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-methanone
REF: 3D-IA63846CAS: 105356-89-6 		Min. 95%To inquireTue 11 Feb 25
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Meropenem EP Impurity A
REF: 3D-IM178851		Min. 95%To inquireTue 11 Feb 25
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Esomeprazole impurity 17
REF: 3D-IE158401		Min. 95%To inquireTue 11 Feb 25
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2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione
REF: 3D-IO183175CAS: 1265617-06-8 		Min. 95%46.00 €~498.00 €Tue 11 Feb 25
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Olsalazine sodium impurity B
REF: 3D-IO63795		Min. 95%To inquireTue 11 Feb 25
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(2RS)-2-(Cyclohex-1-enyl)-2-(4-methoxyphenyl)-N,N-dimethylethanamine Hydrochloride
REF: 3D-IR176877CAS: 93413-79-7 		Min. 95%213.00 €~1,029.00 €Tue 11 Feb 25
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Simvastatin EP Impurity K
REF: 3D-IS183193CAS: 2731620-64-5 		Min. 95%To inquireTue 11 Feb 25
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Pantoprazole sulphide
REF: 3D-ID57911CAS: 102625-64-9 		Min. 95%102.00 €~645.00 €Tue 11 Feb 25
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Levothyroxine lactose adduct
REF: 3D-IL168477		85%Min479.00 €~5,217.00 €Tue 11 Feb 25
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Ketoconazole Impurity A
REF: 3D-IK162616CAS: 254912-63-5 		Min. 95%463.00 €~9,274.00 €Tue 11 Feb 25
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2,2-Bis[4-(2-diethylaminoethoxy)phenyl]-1,2-diphenylethanone
REF: 3D-OB166693CAS: 1391054-64-0 		Min. 95%138.00 €~647.00 €Tue 11 Feb 25
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1-[[2-[(2-Aminophenyl)amino]-5-methyl-3-thienyl]carbonyl]-4-methyl-piperazine
REF: 3D-IA183184CAS: 138564-61-1 		Min. 95%114.00 €~1,044.00 €Tue 11 Feb 25
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2-Phenylbutyramide
REF: 3D-IP145636CAS: 90-26-6 		Min. 95%To inquireTue 11 Feb 25
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3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
REF: 3D-ID21865CAS: 158697-67-7 		Min. 95%248.00 €~1,855.00 €Tue 11 Feb 25
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Enalapril maleate impurity A
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Enalapril maleate impurity A

CAS:1356932-13-2
Enalapril maleate impurity A is an enzyme inhibitor that blocks the action of angiotensin-converting enzyme …
Formula:
C24H32N2O9
Purity:
Min. 95%
Molecular weight:
492.52 g/mol

Ref: 3D-IE63754

1mg400.00 €
2mg569.00 €
5mg813.00 €
10mg1,276.00 €
25mg2,296.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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a-Ribavirin (impurity B)
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a-Ribavirin (impurity B)

Controlled Product
CAS:57198-02-4
Ribavirin is an antiviral drug that inhibits the synthesis of RNA and DNA. It is …
Formula:
C8H12N4O5
Purity:
Min. 95%
Molecular weight:
244.2 g/mol

Ref: 3D-NR10396

1mgTo inquire
2mgTo inquire
5mgTo inquire
10mgTo inquire
25mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Pencyclovir Impurity 1
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Pencyclovir Impurity 1

CAS:100199-40-4
Pencyclovir Impurity 1 is a drug product that is used as an analytical reference for …
Formula:
C10H14CIN5O2
Purity:
Min. 95%
Molecular weight:
375.17 g/mol

Ref: 3D-FP165992

1mgTo inquire
2mgTo inquire
5mgTo inquire
10mgTo inquire
25mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Anastrozole dimer impurity - 65%
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Anastrozole dimer impurity - 65%

CAS:1216898-82-6
Anastrozole is an aromatase inhibitor used in the treatment of breast cancer. It is a …
Formula:
C30H31N9
Purity:
Min. 95%
Molecular weight:
517.63 g/mol

Ref: 3D-IA61497

1mgTo inquire
2mgTo inquire
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250µgTo inquire
500µgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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N1.9,N1.9-Dimethyldesmopressin
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N1.9,N1.9-Dimethyldesmopressin

N1.9,N1.9-Dimethyldesmopressin is a synthetic analog of the natural hormone vasopressin. It is used as a …
Purity:
Min. 95%

Ref: 3D-ID173217

100mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Des(oxopentyl) valsartan benzyl ester
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Des(oxopentyl) valsartan benzyl ester

CAS:676129-93-4
Des(oxopentyl) Valsartan Benzyl Ester is an analytical standard for the drug valsartan. It is a …
Formula:
C26H27N5O2
Purity:
Min. 95%
Molecular weight:
441.53 g/mol

Ref: 3D-ID21096

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25mgTo inquire
50mgTo inquire
100mgTo inquire
250mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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[4-(4-Amino-6-hydroxy-7-methoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-methanone
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[4-(4-Amino-6-hydroxy-7-methoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-methanone

CAS:105356-89-6
4-(4-Amino-6-hydroxy-7-methoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-methanone (CAS No. 105356-89-6) is a synthetic impurity standard used in the manufacture of various …
Formula:
C18H23N5O4
Purity:
Min. 95%
Molecular weight:
373.41 g/mol

Ref: 3D-IA63846

1mgTo inquire
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10mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Meropenem EP Impurity A
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Meropenem EP Impurity A

Meropenem EP Impurity A is a synthetic, high purity, drug product that is used as …
Formula:
C17H27N3O6S
Purity:
Min. 95%
Molecular weight:
401.48 g/mol

Ref: 3D-IM178851

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2mgTo inquire
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25mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Esomeprazole impurity 17
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Esomeprazole impurity 17

Esomeprazole impurity 17 is a drug product that is an analytical standard. It is a …
Formula:
C26H30N4O5S
Purity:
Min. 95%
Molecular weight:
510.61 g/mol

Ref: 3D-IE158401

100mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione
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2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione

CAS:1265617-06-8
Please enquire for more information about 2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione including the price, delivery time and more detailed …
Formula:
C22H19N3O6
Purity:
Min. 95%
Molecular weight:
421.4 g/mol

Ref: 3D-IO183175

2mg136.00 €
5mg213.00 €
10mg341.00 €
25mg498.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Olsalazine sodium impurity B
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Olsalazine sodium impurity B

Olsalazine sodium impurity B is a synthetic compound that is used in the production of …
Formula:
C14H10N2O6
Purity:
Min. 95%
Molecular weight:
302.24 g/mol

Ref: 3D-IO63795

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25mgTo inquire
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250mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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(2RS)-2-(Cyclohex-1-enyl)-2-(4-methoxyphenyl)-N,N-dimethylethanamine Hydrochloride
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(2RS)-2-(Cyclohex-1-enyl)-2-(4-methoxyphenyl)-N,N-dimethylethanamine Hydrochloride

CAS:93413-79-7
(2RS)-2-(Cyclohex-1-enyl)-2-(4-methoxyphenyl)-N,N-dimethylethanamine Hydrochloride is a white crystalline powder with a melting point of 136.5°C and a …
Formula:
C17H25NO·ClH
Purity:
Min. 95%
Molecular weight:
295.85 g/mol

Ref: 3D-IR176877

1mg213.00 €
2mg341.00 €
5mg498.00 €
10mg711.00 €
25mg1,029.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Simvastatin EP Impurity K
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Simvastatin EP Impurity K

CAS:2731620-64-5
Please enquire for more information about Simvastatin EP Impurity K including the price, delivery time …
Formula:
C25H40O5
Purity:
Min. 95%
Molecular weight:
420.59 g/mol

Ref: 3D-IS183193

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100mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Pantoprazole sulphide
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Pantoprazole sulphide

CAS:102625-64-9
Pantoprazole sulphide is a benzimidazole derivative that has been synthesized in an asymmetric synthesis. The …
Formula:
C16H15F2N3O3S
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
367.37 g/mol

Ref: 3D-ID57911

25g193.00 €
50g233.00 €
100g309.00 €
250g437.00 €
500g645.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Levothyroxine lactose adduct
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Levothyroxine lactose adduct

Levothyroxine is a drug product that is used for the treatment of hypothyroidism. It is …
Formula:
C27H31I4NO14
Purity:
85%Min
Molecular weight:
1,101.15 g/mol

Ref: 3D-IL168477

1mg479.00 €
2mg789.00 €
5mg1,507.00 €
10mg2,435.00 €
25mg5,217.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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Ketoconazole Impurity A
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Ketoconazole Impurity A

CAS:254912-63-5
Ketoconazole Impurity A is a synthetic impurity of Ketoconazole, which is used as an anti-fungal …
Formula:
C26H26Cl2N4O4
Purity:
Min. 95%
Molecular weight:
529.41 g/mol

Ref: 3D-IK162616

1mg1,449.00 €
2mg2,087.00 €
5mg2,898.00 €
10mg4,174.00 €
25mg9,274.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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2,2-Bis[4-(2-diethylaminoethoxy)phenyl]-1,2-diphenylethanone
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2,2-Bis[4-(2-diethylaminoethoxy)phenyl]-1,2-diphenylethanone

Controlled Product
CAS:1391054-64-0
2,2-Bis[4-(2-diethylaminoethoxy)phenyl]-1,2-diphenylethanone (bis-DEA) is a synthetic metabolite that has been shown to inhibit human liver microsomal …
Formula:
C38H46N2O3
Purity:
Min. 95%
Molecular weight:
578.78 g/mol

Ref: 3D-OB166693

1mg138.00 €
2mg194.00 €
5mg310.00 €
10mg472.00 €
25mg647.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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1-[[2-[(2-Aminophenyl)amino]-5-methyl-3-thienyl]carbonyl]-4-methyl-piperazine
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1-[[2-[(2-Aminophenyl)amino]-5-methyl-3-thienyl]carbonyl]-4-methyl-piperazine

CAS:138564-61-1
Please enquire for more information about 1-[[2-[(2-Aminophenyl)amino]-5-methyl-3-thienyl]carbonyl]-4-methyl-piperazine including the price, delivery time and more detailed …
Formula:
C17H22N4OS
Purity:
Min. 95%
Molecular weight:
330.45 g/mol

Ref: 3D-IA183184

5mg194.00 €
10mg341.00 €
25mg463.00 €
50mg712.00 €
100mg1,044.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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2-Phenylbutyramide
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2-Phenylbutyramide

CAS:90-26-6
2-Phenylbutyramide is a drug that acts as a potent, nonselective agonist at adenosine A3 receptors. …
Formula:
C10H13NO
Purity:
Min. 95%
Molecular weight:
163.22 g/mol

Ref: 3D-IP145636

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25mgTo inquire
50mgTo inquire
Estimated delivery in United States, on Tuesday 11 Feb 2025
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3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimi…
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3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one

CAS:158697-67-7
Roflumilast is a drug used to treat chronic obstructive pulmonary disease. It is also used …
Formula:
C23H27F2N3O2
Purity:
Min. 95%
Molecular weight:
415.48 g/mol

Ref: 3D-ID21865

1mg248.00 €
2mg364.00 €
5mg517.00 €
10mg863.00 €
25mg1,855.00 €
Estimated delivery in United States, on Tuesday 11 Feb 2025
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