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Active pharmaceutical ingredient (API) impurities for research

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BrandProduct dataPurityPrice rangeEstimated delivery
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6-Methyl-2-(4-methylphenyl)imidazol[1,2-a]-pyridine-3-acetic acid
REF: 3D-IM46256CAS: 189005-44-5 		Min. 95%136.00 €~582.00 €Tue 28 Jan 25
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Roflumilast Impurity B
REF: 3D-IR168439CAS: 1391052-76-8 		Min. 95%To inquireTue 28 Jan 25
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5'-Epi lamivudine
REF: 3D-NE22708CAS: 139757-68-9 		Min. 95%To inquireTue 28 Jan 25
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2'-Epi-lamivudine
REF: 3D-NE22731CAS: 136846-20-3 		Min. 95%To inquireTue 28 Jan 25
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Ceftazidime impurity H
REF: 3D-IC63721CAS: 1354396-23-8 		Min. 95%391.00 €~7,970.00 €Tue 28 Jan 25
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[1,1'-Biphenyl]-2'-(2H-tetrazol-5-yl)-4-carboxylic acid, [1,1'-biphenyl]-(2'-(2H-tetrazol-5-yl)-4-yl)methyl ester
REF: 3D-IB18639CAS: 1159977-10-2 		Min. 95%To inquireTue 28 Jan 25
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1-[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]-2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]thio]-1H-benzimidazole
REF: 3D-IM25351CAS: 1114543-47-3 		Min. 95%To inquireTue 28 Jan 25
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3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-7,8-dihydro-2-methyl-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione
REF: 3D-IF24786CAS: 1189516-65-1 		Min. 95%To inquireTue 28 Jan 25
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4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
REF: 3D-ID21639CAS: 133330-60-6 		Min. 95%To inquireTue 28 Jan 25
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Azithromycin impurity J
REF: 3D-IA63634CAS: 117693-41-1 		Min. 95%100.00 €~1,049.00 €Tue 28 Jan 25
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4'-[(4'Methyl-2'-propyl[2,6'-bi-1H-benzimidazol]-1'-yl)methyl][1,1'-biphenyl]-2-carboxylic acid
REF: 3D-IM21329CAS: 144701-81-5 		Min. 95%To inquireTue 28 Jan 25
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Labetalol EP impurity D
REF: 3D-IL170150CAS: 32780-65-7 		Min. 95%213.00 €~1,449.00 €Tue 28 Jan 25
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2-Deschloro aripiprazole
REF: 3D-ID171125CAS: 203395-82-8 		Min. 95%To inquireTue 28 Jan 25
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Zolmitriptan related compound D
REF: 3D-IZ167701CAS: 191864-24-1 		Min. 95%To inquireTue 28 Jan 25
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rac-Ibuprofen amide
REF: 3D-II63768CAS: 59512-17-3 		Min. 98 Area-%To inquireTue 28 Jan 25
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Alfuzosin hydrochloride EP Impurity F hydrochloride
REF: 3D-IA182629CAS: 19216-68-3 		Min. 95%To inquireTue 28 Jan 25
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Bosentan impurity C
REF: 3D-IB64076CAS: 1097263-60-9 		Min. 95%To inquireTue 28 Jan 25
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23,24-Anhydro tacrolimus
REF: 3D-IA35430CAS: 104987-16-8 		Min. 95%149.00 €~2,898.00 €Tue 28 Jan 25
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Salbutamol EP impurity C
REF: 3D-FS168555CAS: 18910-68-4 		Min. 95%163.00 €~1,160.00 €Tue 28 Jan 25
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Chlorhexidine diacetate impurity A
REF: 3D-IC19930CAS: 152504-08-0 		Min. 95%364.00 €~1,855.00 €Tue 28 Jan 25
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6-Methyl-2-(4-methylphenyl)imidazol[1,2-a]-pyridine-3-acetic acid
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6-Methyl-2-(4-methylphenyl)imidazol[1,2-a]-pyridine-3-acetic acid

CAS:189005-44-5
6-Methyl-2-(4-methylphenyl)imidazol[1,2-a]-pyridine-3-acetic acid is an imidazopyridine that is soluble in organic solvents. It is a white …
Formula:
C17H16N2O2
Purity:
Min. 95%
Molecular weight:
280.32 g/mol

Ref: 3D-IM46256

2g136.00 €
5g172.00 €
10g248.00 €
25g436.00 €
50g582.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Roflumilast Impurity B
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Roflumilast Impurity B

CAS:1391052-76-8
Roflumilast Impurity B is an oxidative reagent that can be used for the preparation of …
Formula:
C13H8Cl2F2N2O3
Purity:
Min. 95%
Molecular weight:
349.12 g/mol

Ref: 3D-IR168439

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5'-Epi lamivudine
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5'-Epi lamivudine

CAS:139757-68-9
Lamivudine epimer
Formula:
C8H11N3O3S
Purity:
Min. 95%
Molecular weight:
229.26 g/mol

Ref: 3D-NE22708

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2'-Epi-lamivudine
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2'-Epi-lamivudine

CAS:136846-20-3
2'-Epi-lamivudine is a chiral, racemic mixture of the two enantiomers of lamivudine. The synthesis and …
Formula:
C8H11N3O3S
Purity:
Min. 95%
Molecular weight:
229.26 g/mol

Ref: 3D-NE22731

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2mgTo inquire
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Ceftazidime impurity H
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Ceftazidime impurity H

CAS:1354396-23-8
Ceftazidime impurity H is a by-product that can be found in the synthesis of ceftazidime. …
Formula:
C23H24N6O7S2
Purity:
Min. 95%
Molecular weight:
560.6 g/mol

Ref: 3D-IC63721

1mg1,021.00 €
2mg1,786.00 €
5mg3,380.00 €
10mg4,846.00 €
25mg7,970.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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[1,1'-Biphenyl]-2'-(2H-tetrazol-5-yl)-4-carboxylic acid, [1,1'-biphenyl]-(2'-(2H-tetrazol-5-yl)-4-…
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[1,1'-Biphenyl]-2'-(2H-tetrazol-5-yl)-4-carboxylic acid, [1,1'-biphenyl]-(2'-(2H-tetrazol-5-yl)-4-yl)methyl ester

CAS:1159977-10-2
Biphenyl-2'-(2H-tetrazol-5-yl)-4-carboxylic acid, [1,1'-biphenyl]-(2'-(2H-tetrazol-5-yl)-4-yl)methyl ester is a research and development impurity standard. It is a synthetic …
Formula:
C28H20N8O2
Purity:
Min. 95%
Molecular weight:
500.51 g/mol

Ref: 3D-IB18639

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1-[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]-2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridin…
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1-[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]-2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]thio]-1H-benzimidazole

CAS:1114543-47-3
1-[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]-2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]thio]-1H-benzimidazole is a drug product with analytical applications. It has been shown to have natural …
Formula:
C29H36N4O4S
Purity:
Min. 95%
Molecular weight:
536.69 g/mol

Ref: 3D-IM25351

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3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-7,8-dihydro-2-methyl-4H-pyrido[1,2-a…
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3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-7,8-dihydro-2-methyl-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione

CAS:1189516-65-1
3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-7,8-dihydro-2-methyl-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione is a research and development impurity standard. It is a synthetic drug product with …
Formula:
C23H25FN4O3
Purity:
Min. 95%
Molecular weight:
424.47 g/mol

Ref: 3D-IF24786

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one
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4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one

CAS:133330-60-6
4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one is a drug that has been developed for the treatment of cancer. It is …
Formula:
C14H9Cl2NO
Purity:
Min. 95%
Molecular weight:
278.13 g/mol

Ref: 3D-ID21639

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Azithromycin impurity J
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Azithromycin impurity J

CAS:117693-41-1
Azithromycin impurity J, also known as Azithromycin P-Toluenesulfonate, is an impurity of the drug azithromycin. …
Formula:
C30H58N2O9
Purity:
Min. 95%
Color and Shape:
Off-White Powder
Molecular weight:
590.79 g/mol

Ref: 3D-IA63634

2mg199.00 €
5mg315.00 €
10mg458.00 €
25mg745.00 €
50mg1,049.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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4'-[(4'Methyl-2'-propyl[2,6'-bi-1H-benzimidazol]-1'-yl)methyl][1,1'-biphenyl]-2-carboxylic acid
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4'-[(4'Methyl-2'-propyl[2,6'-bi-1H-benzimidazol]-1'-yl)methyl][1,1'-biphenyl]-2-carboxylic acid

CAS:144701-81-5
Gatifloxacin is a fluoroquinolone antibiotic that inhibits the DNA gyrase and topoisomerase IV, which are …
Formula:
C32H28N4O2
Purity:
Min. 95%
Molecular weight:
500.59 g/mol

Ref: 3D-IM21329

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Labetalol EP impurity D
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Labetalol EP impurity D

CAS:32780-65-7
Labetalol EP impurity D is a metabolite of labetalol that is used as an impurity …
Formula:
C9H12N2O3
Purity:
Min. 95%
Molecular weight:
196.2 g/mol

Ref: 3D-IL170150

1mg213.00 €
2mg341.00 €
5mg498.00 €
10mg813.00 €
25mg1,449.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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2-Deschloro aripiprazole
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2-Deschloro aripiprazole

CAS:203395-82-8
2-Deschloro aripiprazole is a drug that belongs to the class of antipsychotics. It is an …
Formula:
C23H28ClN3O2
Purity:
Min. 95%
Molecular weight:
413.94 g/mol

Ref: 3D-ID171125

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Zolmitriptan related compound D
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Zolmitriptan related compound D

CAS:191864-24-1
Zolmitriptan related compound D is a drug product that is an analytical impurity of the …
Formula:
C19H25N3O4
Purity:
Min. 95%
Molecular weight:
359.42 g/mol

Ref: 3D-IZ167701

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rac-Ibuprofen amide
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rac-Ibuprofen amide

CAS:59512-17-3
Ibuprofen amide is a nonsteroidal anti-inflammatory drug that belongs to the class of amides. It …
Formula:
C13H19NO
Purity:
Min. 98 Area-%
Molecular weight:
205.3 g/mol

Ref: 3D-II63768

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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Alfuzosin hydrochloride EP Impurity F hydrochloride
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Alfuzosin hydrochloride EP Impurity F hydrochloride

CAS:19216-68-3
Alfuzosin EP Impurity F hydrochloride is a drug product that is used as an analytical …
Formula:
C12H16N4O2•HCl
Purity:
Min. 95%
Molecular weight:
284.74 g/mol

Ref: 3D-IA182629

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Bosentan impurity C
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Bosentan impurity C

CAS:1097263-60-9
Bosentan impurity C is a stable crystalline compound that is soluble in organic solvents. It …
Formula:
C52H52N10O10S2
Purity:
Min. 95%
Molecular weight:
1,041.16 g/mol

Ref: 3D-IB64076

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Estimated delivery in United States, on Tuesday 28 Jan 2025
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23,24-Anhydro tacrolimus
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23,24-Anhydro tacrolimus

CAS:104987-16-8
23,24-Anhydro tacrolimus is a synthetic prodrug of the immunosuppressant drug tacrolimus. It has the same …
Formula:
C44H67NO11
Purity:
Min. 95%
Color and Shape:
White Powder
Molecular weight:
786 g/mol

Ref: 3D-IA35430

1mg364.00 €
2mg517.00 €
5mg986.00 €
10mg1,449.00 €
25mg2,898.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Salbutamol EP impurity C
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Salbutamol EP impurity C

CAS:18910-68-4
Salbutamol EP Impurity C is an impurity of Salbutamol EP, which is an active pharmaceutical …
Formula:
C13H21NO2
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
223.31 g/mol

Ref: 3D-FS168555

1mg163.00 €
5mg310.00 €
10mg436.00 €
25mg770.00 €
50mg1,160.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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Chlorhexidine diacetate impurity A
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Chlorhexidine diacetate impurity A

CAS:152504-08-0
Chlorhexidine diacetate impurity A is a high purity, analytical standard for the detection of chlorhexidine …
Formula:
C16H24ClN9
Purity:
Min. 95%
Color and Shape:
White to off-white solid.
Molecular weight:
377.88 g/mol

Ref: 3D-IC19930

1mg517.00 €
2mg801.00 €
5mg1,160.00 €
10mg1,855.00 €
500µg364.00 €
Estimated delivery in United States, on Tuesday 28 Jan 2025
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