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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Product data	Purity	Price range	Estimated delivery
1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol REF: 3D-IM63789CAS: 154784-36-8	Min. 95%	To inquire	Tue 14 Jan 25
1,4-Di-2-furoylpiperazine REF: 3D-ID63852CAS: 31350-27-3	Min. 95%	To inquire	Tue 14 Jan 25
Erythromycin E REF: 3D-IE146282CAS: 41451-91-6	Min. 95%	To inquire	Tue 14 Jan 25
Cetirizine impurity C REF: 3D-IC162255CAS: 83881-59-8	Min. 95%	To inquire	Tue 14 Jan 25
Clindamycin phosphate EP impurity G REF: 3D-IC166592	Min. 95%	To inquire	Tue 14 Jan 25
2,3,4,5-Tetradehydro alfuzosin hydrochloride REF: 3D-IT28077CAS: 98902-29-5	Min. 95%	To inquire	Tue 14 Jan 25
2-Demethoxy-2-chloro urapidil REF: 3D-ID139024CAS: 34661-73-9	Min. 95%	To inquire	Tue 14 Jan 25
Ethyl (S)-1-phenyl-1,2,3,4-tetrahydro-2-isoquinolinecarboxylate REF: 3D-IE71486CAS: 180468-42-2	Min. 95%	136.00 €~436.00 €	Tue 14 Jan 25
Azithromycin N-ethyl REF: 3D-IA137488CAS: 92594-45-1	Min. 95%	To inquire	Tue 14 Jan 25
Risperidone N-oxide REF: 3D-IR27739CAS: 832747-55-4	Min. 95%	213.00 €~1,021.00 €	Tue 14 Jan 25
Bupropion (R)-Isomer REF: 3D-IB159729CAS: 437723-96-1	Min. 95%	To inquire	Tue 14 Jan 25
3-Hydroxy mepivacaine REF: 3D-IH24042CAS: 37055-90-6	Min. 95%	To inquire	Tue 14 Jan 25
(24R)-Calcipotriene REF: 3D-IC76464CAS: 112827-99-3	Min. 95%	To inquire	Tue 14 Jan 25
Solifenacin Impurity D REF: 3D-IS167472CAS: 2216750-52-4	Min. 96 Area-%	To inquire	Tue 14 Jan 25
4-Oxo valsartan benzyl ester REF: 3D-IO26665CAS: 188240-32-6	Min. 95%	To inquire	Tue 14 Jan 25
1-Benzyl-4-phenylpiperidine-4-carboxylic acid REF: 3D-IB57902CAS: 61886-17-7	Min. 95%	To inquire	Tue 14 Jan 25
Levofloxacin carboxylic acid REF: 3D-IL24882CAS: 100986-89-8	Min. 95%	To inquire	Tue 14 Jan 25
Acyclovir Impurity O REF: 3D-IA158674	Min. 95%	To inquire	Tue 14 Jan 25
Hydrocortisone EP Impurity H REF: 3D-IH178817	Min. 95%	105.00 €~1,392.00 €	Tue 14 Jan 25
3-Carboxy-a-methyl-benzeneacetic acid REF: 3D-IC19808CAS: 68432-95-1	Min. 95%	310.00 €~1,913.00 €	Tue 14 Jan 25

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

5mg		To inquire
10mg		To inquire
25mg		To inquire
50mg		To inquire
100mg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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

1g		To inquire
50mg		To inquire
100mg		To inquire
250mg		To inquire
500mg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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

25mg To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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Cetirizine impurity C

CAS:83881-59-8

Cetirizine impurity C is a potential impurity of cetirizine. It is used in the synthesis …

Formula:

C₂₁H₂₅ClN₂O₃

Purity:

Min. 95%

Molecular weight:

388.89 g/mol

Ref: 3D-IC162255

50mg		To inquire
100mg		To inquire
250mg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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

10mg To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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2,3,4,5-Tetradehydro alfuzosin hydrochloride

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2,3,4,5-Tetradehydro alfuzosin hydrochloride

CAS:98902-29-5

Alfuzosin is a potent, selective, and long-acting α1A-adrenergic receptor antagonist. It is used to treat …

Formula:

C₁₉H₂₄ClN₅O₄

Purity:

Min. 95%

Color and Shape:

White Powder

Molecular weight:

421.88 g/mol

Ref: 3D-IT28077

100mg To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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2-Demethoxy-2-chloro urapidil

CAS:34661-73-9

2-Demethoxy-2-chloro urapidil is an analytical standard that is used in drug development and research. It …

Formula:

C₁₉H₂₆ClN₅O₂

Purity:

Min. 95%

Molecular weight:

391.89 g/mol

Ref: 3D-ID139024

1g		To inquire
1500mg		To inquire

Estimated delivery in United States, on Tuesday 14 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

2mg		136.00 €
5mg		138.00 €
10mg		194.00 €
25mg		310.00 €
50mg		436.00 €

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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

10mg		194.00 €
25mg		310.00 €
50mg		436.00 €
100mg		711.00 €
250mg		1,160.00 €

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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

1mg		213.00 €
2mg		341.00 €
5mg		480.00 €
10mg		569.00 €
25mg		1,021.00 €

Estimated delivery in United States, on Tuesday 14 Jan 2025

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Bupropion (R)-Isomer

Controlled Product

CAS:437723-96-1

Bupropion is a racemic mixture of two enantiomers. The (R)-isomer is the more active form …

Formula:

C₁₃H₁₈ClNO

Purity:

Min. 95%

Molecular weight:

239.74 g/mol

Ref: 3D-IB159729

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

Estimated delivery in United States, on Tuesday 14 Jan 2025

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3-Hydroxy mepivacaine

CAS:37055-90-6

3-Hydroxy mepivacaine is a drug product that is synthesized in the laboratory for research and …

Formula:

C₁₅H₂₂N₂O₂

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

262.35 g/mol

Ref: 3D-IH24042

10µg		To inquire
25µg		To inquire
50µg		To inquire
100µg		To inquire
250µg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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(24R)-Calcipotriene

CAS:112827-99-3

(24R)-Calcipotriene is a synthetic analog of calcitriol, the active form of vitamin D3. It is …

Formula:

C₂₇H₄₀O₃

Purity:

Min. 95%

Molecular weight:

412.6 g/mol

Ref: 3D-IC76464

1mg		To inquire
2mg		To inquire
5mg		To inquire
10mg		To inquire
500µg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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Solifenacin Impurity D

CAS:2216750-52-4

Solifenacin Impurity D is a synthetic impurity of solifenacin. Solifenacin is an anti-cholinergic drug used …

Formula:

C₃₁H₂₈N₂O

Purity:

Min. 96 Area-%

Color and Shape:

White Powder

Molecular weight:

444.57 g/mol

Ref: 3D-IS167472

5mg		To inquire
10mg		To inquire
25mg		To inquire
50mg		To inquire
100mg		To inquire

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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 Tuesday 14 Jan 2025

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

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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 Tuesday 14 Jan 2025

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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 Tuesday 14 Jan 2025

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Acyclovir Impurity O

Acyclovir Impurity O is an impurity found in the drug Acyclovir. It has been shown …

Formula:

C₉H₁₃N₅O₄

Purity:

Min. 95%

Molecular weight:

255.23 g/mol

Ref: 3D-IA158674

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

Estimated delivery in United States, on Tuesday 14 Jan 2025

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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 Tuesday 14 Jan 2025

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3-Carboxy-a-methyl-benzeneacetic acid

CAS:68432-95-1

3-Carboxy-a-methyl-benzeneacetic acid (3CMA) is an impurity in the synthesis of 3,4-methylenedioxyphenylacetone. It is a preservative …

Formula:

C₁₀H₁₀O₄

Purity:

Min. 95%

Molecular weight:

194.18 g/mol

Ref: 3D-IC19808

1mg		310.00 €
2mg		436.00 €
5mg		582.00 €
10mg		924.00 €
25mg		1,913.00 €

Estimated delivery in United States, on Tuesday 14 Jan 2025

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