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. 3405 products on this category.

Product data	Purity	Price range	Estimated delivery
3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one REF: 3D-IE23102CAS: 70381-58-7	Min. 95%	To inquire	Thu 23 Jan 25
(R)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline REF: 3D-IP46848CAS: 180272-45-1	Min. 95%	To inquire	Thu 23 Jan 25
(5S)-5-(Aminomethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-1,3-oxazolidin-2-one REF: 3D-IA58038CAS: 168828-90-8	Min. 95%	177.00 €~868.00 €	Thu 23 Jan 25
Glimepiride EP Impurity G REF: 3D-IG183144	Min. 95%	To inquire	Thu 23 Jan 25
Glimepiride EP Impurity H REF: 3D-IG183145CAS: 2724503-28-8	Min. 95%	To inquire	Thu 23 Jan 25
4-Oxo valsartan benzyl ester REF: 3D-IO26665CAS: 188240-32-6	Min. 95%	To inquire	Thu 23 Jan 25
1-Benzyl-4-phenylpiperidine-4-carboxylic acid REF: 3D-IB57902CAS: 61886-17-7	Min. 95%	To inquire	Thu 23 Jan 25
Levofloxacin carboxylic acid REF: 3D-IL24882CAS: 100986-89-8	Min. 95%	To inquire	Thu 23 Jan 25
Buprenorphine furanyl impurity REF: 3D-IB19360CAS: 89663-73-0	Min. 95%	To inquire	Thu 23 Jan 25
N,N'-Bis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride REF: 3D-IB145560CAS: 63434-11-7	Min. 95%	To inquire	Thu 23 Jan 25
Hydrocortisone EP Impurity H REF: 3D-IH178817	Min. 95%	105.00 €~1,392.00 €	Thu 23 Jan 25
11-[3-(Dimethylamino)propyl]-6,11-dihydrodibenz[b,e]oxepin-11-ol REF: 3D-ID45253CAS: 4504-88-5	Min. 95%	75.00 €~986.00 €	Thu 23 Jan 25
Roxithromycin impurity I REF: 3D-IR106455CAS: 425365-66-8	Min. 95%	453.00 €~8,694.00 €	Thu 23 Jan 25
4-Methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide REF: 3D-IM182951CAS: 851137-91-2	Min. 95%	136.00 €~814.00 €	Thu 23 Jan 25
Chlorhexidine diacetate impurity C REF: 3D-IC19931CAS: 62247-48-7	Min. 95%	To inquire	Thu 23 Jan 25
(2-Amino-2-(hydroxymethyl)propane-3-ol-1-yl) (5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate), racemic REF: 3D-IA58064	Min. 95%	To inquire	Thu 23 Jan 25
Glimepiride EP Impurity J hydrochloride REF: 3D-IG183152	Min. 95%	To inquire	Thu 23 Jan 25
N-Acetyl zonisamide REF: 3D-IA17048CAS: 68936-43-6	Min. 95%	746.00 €~3,086.00 €	Thu 23 Jan 25
Losartan imidazo[1,5-b]isoquinoline impurity REF: 3D-IL24943CAS: 165276-38-0	Min. 95%	To inquire	Thu 23 Jan 25
Cefixime EP Impurity C disodium REF: 3D-IC183042CAS: 124506-28-1	Min. 95%	1,913.00 €~10,433.00 €	Thu 23 Jan 25

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

+ info

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

CAS:70381-58-7

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one is a research and development impurity standard. It is used as a pharmacopoeia and …

Formula:

C₁₁H₁₆N₂O

Purity:

Min. 95%

Molecular weight:

192.26 g/mol

Ref: 3D-IE23102

1mg		To inquire
2mg		To inquire
5mg		To inquire
10mg		To inquire
25mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

(R)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline

+ info

(R)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline

CAS:180272-45-1

(R)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline is a chiral molecule with four stereocenters. It is synthesized by the reaction of …

Formula:

C₁₅H₁₅N

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

209.29 g/mol

Ref: 3D-IP46848

1g		272.00 €
5g		657.00 €
250mg		139.00 €
500mg		186.00 €
2500mg		470.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

(5S)-5-(Aminomethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-1,3-oxazolidin-2-one

+ info

(5S)-5-(Aminomethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-1,3-oxazolidin-2-one

CAS:168828-90-8

(5S)-5-(Aminomethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-1,3-oxazolidin-2-one is a molecule with a broad spectrum of antimicrobial activity. It is a potent …

Formula:

C₁₄H₁₈FN₃O₃

Purity:

Min. 95%

Color and Shape:

Off-White Powder

Molecular weight:

295.31 g/mol

Ref: 3D-IA58038

5g		177.00 €
10g		237.00 €
25g		441.00 €
50g		523.00 €
100g		868.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Glimepiride EP Impurity G

Please enquire for more information about Glimepiride EP Impurity G including the price, delivery time …

Formula:

C₁₉H₂₅N₃O₆S

Purity:

Min. 95%

Molecular weight:

423.48 g/mol

Ref: 3D-IG183144

10mg		To inquire
25mg		To inquire
50mg		To inquire
100mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Glimepiride EP Impurity H

CAS:2724503-28-8

Please enquire for more information about Glimepiride EP Impurity H including the price, delivery time …

Formula:

C₂₄H₂₈N₄O₅S

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

484.57 g/mol

Ref: 3D-IG183145

2mg		172.00 €
5mg		248.00 €
10mg		364.00 €
25mg		518.00 €
50mg		801.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

4-Oxo valsartan benzyl ester

CAS:188240-32-6

4-Oxo valsartan benzyl ester is a drug product that is used for research and development …

Formula:

C₃₁H₃₃N₅O₄

Purity:

Min. 95%

Molecular weight:

539.63 g/mol

Ref: 3D-IO26665

1mg		To inquire
2mg		To inquire
5mg		To inquire
10mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

1-Benzyl-4-phenylpiperidine-4-carboxylic acid

+ info

1-Benzyl-4-phenylpiperidine-4-carboxylic acid

Controlled Product

CAS:61886-17-7

1-Benzyl-4-phenylpiperidine-4-carboxylic acid (1BPPC) is a soluble guanylate cyclase activator that is used as a research …

Formula:

C₁₈H₂₁NO₂

Purity:

Min. 95%

Molecular weight:

283.36 g/mol

Ref: 3D-IB57902

25mg		To inquire
50mg		To inquire
100mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Levofloxacin carboxylic acid

CAS:100986-89-8

Levofloxacin is a synthetic molecule with an asymmetric carbon atom in its heterocycle. It is …

Formula:

C₁₃H₉F₂NO₄

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

281.21 g/mol

Ref: 3D-IL24882

10g		172.00 €
25g		310.00 €
50g		436.00 €
100g		646.00 €
250g		1,047.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Buprenorphine furanyl impurity

Controlled Product

CAS:89663-73-0

Buprenorphine is a semi-synthetic opioid that is used to treat pain. It has been shown …

Formula:

C₂₈H₃₇NO₃

Purity:

Min. 95%

Molecular weight:

435.6 g/mol

Ref: 3D-IB19360

1mg		To inquire
5mg		To inquire
10mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

N,N'-Bis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride

+ info

N,N'-Bis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride

CAS:63434-11-7

N,N'-Bis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride is a synthetic compound that is metabolized to the natural product naphthol AS. …

Formula:

C₂₅H₃₈N₂O₄·2HCl

Purity:

Min. 95%

Molecular weight:

503.5 g/mol

Ref: 3D-IB145560

5mg		To inquire
10mg		To inquire
25mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Hydrocortisone EP Impurity H

Hydrocortisone EP Impurity H is an analytical standard that is used as an impurity in …

Formula:

C₂₁H₃₀O₆

Purity:

Min. 95%

Molecular weight:

378.46 g/mol

Ref: 3D-IH178817

1mg		232.00 €
2mg		364.00 €
5mg		647.00 €
10mg		986.00 €
25mg		1,392.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

11-[3-(Dimethylamino)propyl]-6,11-dihydrodibenz[b,e]oxepin-11-ol

+ info

11-[3-(Dimethylamino)propyl]-6,11-dihydrodibenz[b,e]oxepin-11-ol

CAS:4504-88-5

Dispersants are substances that are used to break up and disperse particles in a liquid. …

Formula:

C₁₉H₂₃NO₂

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

297.39 g/mol

Ref: 3D-ID45253

2mg		194.00 €
5mg		310.00 €
10mg		436.00 €
25mg		647.00 €
50mg		986.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Roxithromycin impurity I

CAS:425365-66-8

Roxithromycin impurity I is a natural metabolite of roxithromycin. The substance has been synthesized in …

Formula:

C₄₅H₈₄N₂O₁₇

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

925.15 g/mol

Ref: 3D-IR106455

1mg		453.00 €
5mg		1,392.00 €
10mg		2,551.00 €
25mg		5,217.00 €
50mg		8,694.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

4-Methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide

+ info

4-Methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide

CAS:851137-91-2

4-Methyl-3-[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide is a synthetic compound that has been used as an impurity standard to determine …

Formula:

C₁₇H₁₅N₅O

Purity:

Min. 95%

Molecular weight:

305.33 g/mol

Ref: 3D-IM182951

2mg		136.00 €
5mg		213.00 €
10mg		341.00 €
25mg		569.00 €
50mg		814.00 €

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

+ info

Chlorhexidine diacetate impurity C

CAS:62247-48-7

Chlorhexidine diacetate impurity C is a crystalline solid with an ionic crystal structure. It belongs …

Formula:

C₂₂H₂₈Cl₂N₈O₂

Purity:

Min. 95%

Molecular weight:

507.42 g/mol

Ref: 3D-IC19931

5mg		To inquire
10mg		To inquire
25mg		To inquire

Estimated delivery in United States, on Thursday 23 Jan 2025

+ info

(2-Amino-2-(hydroxymethyl)propane-3-ol-1-yl) (5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate),…

+ info

(2-Amino-2-(hydroxymethyl)propane-3-ol-1-yl) (5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate), racemic

Racemic 2-amino-2-(hydroxymethyl)propane-3-ol-1-yl (5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate) is a synthetic drug product. It is used in research and development …

Formula:

C₁₉H₂₂N₂O₅

Purity:

Min. 95%

Molecular weight:

358.39 g/mol