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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
Biosynth logo
Nicergoline EP Impurity B
REF: 3D-IN171534CAS: 35264-46-1 		Min. 95%To inquireMon 13 Jan 25
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Gentamicin B1
REF: 3D-AG46304CAS: 36889-16-4 		Min. 95%To inquireMon 13 Jan 25
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2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid benzyl ester hydrobromide
REF: 3D-IA139091CAS: 1391053-41-0 		Min. 95%To inquireMon 13 Jan 25
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Acarbose EP Impurity G
REF: 3D-IA175642CAS: 1013621-73-2 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
2-Methoxyethyl-3-aminocrotonate
REF: 3D-IM57945CAS: 50899-10-0 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Sodium picosulfate EP Impurity A
REF: 3D-IS178199CAS: 32500-19-9 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
3-(3-Trifluoromethylphenyl)propionaldehyde diethylacetal
REF: 3D-IT58181CAS: 2059999-49-2 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Cetirizine 3-chloro impurity dihydrochloride
REF: 3D-IC19908CAS: 1232460-29-5 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride
REF: 3D-IM63866CAS: 93413-90-2 		Min. 95%136.00 €~480.00 €Mon 13 Jan 25
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1-Desmethyl 2-methyl granisetron
REF: 3D-ID21230CAS: 127472-42-8 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Desmethyl fluvoxamine - EP
REF: 3D-ID21269CAS: 192876-02-1 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
iso-Gemfibrozil
REF: 3D-IG23653CAS: 86837-66-3 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol
REF: 3D-IM63789CAS: 154784-36-8 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
1,4-Di-2-furoylpiperazine
REF: 3D-ID63852CAS: 31350-27-3 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Erythromycin E
REF: 3D-IE146282CAS: 41451-91-6 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Clindamycin phosphate EP impurity G
REF: 3D-IC166592		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Cefpodoxime proxetil impurity D
REF: 3D-FC63695CAS: 947692-13-9 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate
REF: 3D-IE71486CAS: 180468-42-2 		Min. 95%136.00 €~436.00 €Mon 13 Jan 25
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Azithromycin N-ethyl
REF: 3D-IA137488CAS: 92594-45-1 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Risperidone N-oxide
REF: 3D-IR27739CAS: 832747-55-4 		Min. 95%213.00 €~1,021.00 €Mon 13 Jan 25
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Nicergoline EP Impurity B
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Nicergoline EP Impurity B

CAS:35264-46-1
Nicergoline EP Impurity B is a metabolite of nicergoline, a drug product. It has been …
Purity:
Min. 95%

Ref: 3D-IN171534

1mgTo inquire
2mgTo inquire
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Estimated delivery in United States, on Monday 13 Jan 2025
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Gentamicin B1
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Gentamicin B1

CAS:36889-16-4
Gentamicin B1 is a gentamicin antibiotic that is used to treat skin cancer. It inhibits …
Formula:
C20H40N4O10
Purity:
Min. 95%
Color and Shape:
Solid
Molecular weight:
496.55 g/mol

Ref: 3D-AG46304

1mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid benzyl ester hydrobromide
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2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid benzyl ester hydrobromide

CAS:1391053-41-0
2-Amino-5,6-dichloro-3-(4H)-quinazoline acetic acid benzyl ester hydrobromide is a drug product that is used as an …
Formula:
C17H15Cl2N3O2
Purity:
Min. 95%
Molecular weight:
364.23 g/mol

Ref: 3D-IA139091

1mgTo inquire
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10mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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Acarbose EP Impurity G
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Acarbose EP Impurity G

CAS:1013621-73-2
Acarbose EP Impurity G is a pharmaceutical grade impurity that is used as a reference …
Purity:
Min. 95%

Ref: 3D-IA175642

1mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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2-Methoxyethyl-3-aminocrotonate
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2-Methoxyethyl-3-aminocrotonate

CAS:50899-10-0
2-Methoxyethyl-3-aminocrotonate is an impurity of a drug product. It is an analytical standard that is …
Formula:
C7H13NO3
Purity:
Min. 95%
Molecular weight:
159.18 g/mol

Ref: 3D-IM57945

25mgTo inquire
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100mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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Sodium picosulfate EP Impurity A
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Sodium picosulfate EP Impurity A

CAS:32500-19-9
Sodium picosulfate EP Impurity A is a drug product, analytical, Metabolism studies, Natural, API impurity, …
Formula:
C18H14NNaO5S
Purity:
Min. 95%

Ref: 3D-IS178199

25mgTo inquire
50mgTo inquire
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250mgTo inquire
500mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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3-(3-Trifluoromethylphenyl)propionaldehyde diethylacetal
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3-(3-Trifluoromethylphenyl)propionaldehyde diethylacetal

CAS:2059999-49-2
3-(3-Trifluoromethylphenyl)propionaldehyde diethylacetal is a synthetic compound that belongs to the class of drug products. It …
Formula:
C14H19F3O2
Purity:
Min. 95%
Molecular weight:
276.29 g/mol

Ref: 3D-IT58181

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25mgTo inquire
50mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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Cetirizine 3-chloro impurity dihydrochloride
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Cetirizine 3-chloro impurity dihydrochloride

CAS:1232460-29-5
Cetirizine 3-chloro impurity dihydrochloride is a drug substance that contains the impurity cetirizine. The compound …
Formula:
C21H27Cl3N2O3
Purity:
Min. 95%
Color and Shape:
Solid
Molecular weight:
461.81 g/mol

Ref: 3D-IC19908

1mgTo inquire
2mgTo inquire
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25mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride
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1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride

CAS:93413-90-2
1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride is a drug product that is not yet approved for use in humans. …
Formula:
C16H25NO2·HCl
Purity:
Min. 95%
Molecular weight:
299.84 g/mol

Ref: 3D-IM63866

5mg136.00 €
10mg151.00 €
25mg213.00 €
50mg341.00 €
100mg480.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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1-Desmethyl 2-methyl granisetron
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1-Desmethyl 2-methyl granisetron

CAS:127472-42-8
Granisetron is a serotonin 5-hydroxytryptamine 3 (5-HT3) receptor antagonist. It is used in the prevention …
Formula:
C18H24N4O
Purity:
Min. 95%
Molecular weight:
312.41 g/mol

Ref: 3D-ID21230

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Estimated delivery in United States, on Monday 13 Jan 2025
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Desmethyl fluvoxamine - EP
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Desmethyl fluvoxamine - EP

CAS:192876-02-1
Desmethyl fluvoxamine is the active metabolite of fluvoxamine, which is a drug used to treat …
Formula:
C14H19F3N2O2
Purity:
Min. 95%
Molecular weight:
304.31 g/mol

Ref: 3D-ID21269

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25mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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iso-Gemfibrozil
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iso-Gemfibrozil

CAS:86837-66-3
iso-Gemfibrozil is a natural, synthetic drug product. It is an impurity standard for the pharmacopoeia …
Formula:
C15H22O3
Purity:
Min. 95%
Molecular weight:
250.33 g/mol

Ref: 3D-IG23653

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25mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol
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1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol

CAS:154784-36-8
1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol] is a synthetic drug product that has been custom synthesized for testing purposes. It …
Formula:
C27H41NO6
Purity:
Min. 95%
Molecular weight:
475.62 g/mol

Ref: 3D-IM63789

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Estimated delivery in United States, on Monday 13 Jan 2025
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1,4-Di-2-furoylpiperazine
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1,4-Di-2-furoylpiperazine

CAS:31350-27-3
1,4-Di-2-furoylpiperazine is a synthetic compound that has been shown to have anti-inflammatory and analgesic properties. …
Formula:
C14H14N2O4
Purity:
Min. 95%
Molecular weight:
274.27 g/mol

Ref: 3D-ID63852

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Estimated delivery in United States, on Monday 13 Jan 2025
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Erythromycin E
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Erythromycin E

CAS:41451-91-6
Erythromycin E is a diluent that is used to make erythromycin solutions. It has been …
Formula:
C37H65NO14
Purity:
Min. 95%
Color and Shape:
Off-White Solid
Molecular weight:
747.91 g/mol

Ref: 3D-IE146282

25mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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Clindamycin phosphate EP impurity G
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Clindamycin phosphate EP impurity G

Clindamycin phosphate EP impurity G is a metabolite of clindamycin that can be found in …
Formula:
C18H33N2O8PS
Purity:
Min. 95%
Molecular weight:
468.5 g/mol

Ref: 3D-IC166592

10mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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Cefpodoxime proxetil impurity D
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Cefpodoxime proxetil impurity D

CAS:947692-13-9
Cefpodoxime proxetil impurity D is a cephalosporin antibiotic that is an oral prodrug. It is …
Formula:
C21H27N5O9S2
Purity:
Min. 95%
Molecular weight:
557.6 g/mol

Ref: 3D-FC63695

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Estimated delivery in United States, on Monday 13 Jan 2025
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Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate
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Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate

CAS:180468-42-2
Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate is an analytical standard used to identify impurities in drug products. It is …
Formula:
C18H19NO2
Purity:
Min. 95%
Molecular weight:
281.35 g/mol

Ref: 3D-IE71486

2mg136.00 €
5mg138.00 €
10mg194.00 €
25mg310.00 €
50mg436.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Azithromycin N-ethyl
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Azithromycin N-ethyl

CAS:92594-45-1
Azithromycin N-ethyl is a drug development and analytical impurity standard. It is used as an …
Formula:
C39H74N2O12
Purity:
Min. 95%
Molecular weight:
763.01 g/mol

Ref: 3D-IA137488

10mg194.00 €
25mg310.00 €
50mg436.00 €
100mg711.00 €
250mg1,160.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Risperidone N-oxide
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Risperidone N-oxide

CAS:832747-55-4
Risperidone N-oxide is a prodrug of risperidone. It is prepared by reacting risperidone with methanol …
Formula:
C23H27FN4O3
Purity:
Min. 95%
Molecular weight:
426.48 g/mol

Ref: 3D-IR27739

1mg213.00 €
2mg341.00 €
5mg480.00 €
10mg569.00 €
25mg1,021.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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