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
2,2-Bis[4-(2-diethylaminoethoxy)phenyl]-1,2-diphenylethanone REF: 3D-OB166693CAS: 1391054-64-0	Min. 95%	138.00 €~647.00 €	Wed 05 Feb 25
2′,4′′-Bis-O-(trimethylsilyl)-erythromycin 9-[O-(1-ethoxy-1-methylethyl)oxime] REF: 3D-IB183163CAS: 119665-78-0	Min. 95%	To inquire	Wed 05 Feb 25
Balsalazide 3-isomer REF: 3D-IB18132CAS: 1242567-09-4	Min. 95%	To inquire	Wed 05 Feb 25
Paclitaxel impurity 2 REF: 3D-IP145575CAS: 959572-72-6	Min. 95%	To inquire	Wed 05 Feb 25
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 €	Wed 05 Feb 25
3'-Des(dimethylamino)-3'-keto azithromycin REF: 3D-AD21086CAS: 612069-25-7	Min. 95%	517.00 €~6,902.00 €	Wed 05 Feb 25
N2-Losartanyl-losartan REF: 3D-IL24948CAS: 230971-72-9	Min. 95%	400.00 €~2,806.00 €	Wed 05 Feb 25
Clarithromycin (9E)-O-Methyloxime REF: 3D-IC166194CAS: 127182-44-9	Min. 95%	To inquire	Wed 05 Feb 25
Triphenylmethanol REF: 3D-IT28577CAS: 76-84-6	Min. 95%	To inquire	Wed 05 Feb 25
Trazodone Hydrochloride BP Impurity A REF: 3D-IT171024CAS: 55290-68-1	Min. 95%	To inquire	Wed 05 Feb 25
2-Phenylbutyramide REF: 3D-IP145636CAS: 90-26-6	Min. 95%	To inquire	Wed 05 Feb 25
1-C-4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucopyranose REF: 3D-IC181108CAS: 461432-27-9	Min. 95%	To inquire	Wed 05 Feb 25
3'-Deoxy-3'-chlorothymidine REF: 3D-ID45199CAS: 25526-94-7	Min. 95%	To inquire	Wed 05 Feb 25
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 €	Wed 05 Feb 25
2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone REF: 3D-IE22764CAS: 22525-95-7	Min. 95%	To inquire	Wed 05 Feb 25
4-Hydroxy mepivacaine REF: 3D-IH24043CAS: 616-66-0	Min. 95%	To inquire	Wed 05 Feb 25
Dapagliflozin Impurity 2 REF: 3D-ID181103CAS: 1830346-16-1	Min. 95%	To inquire	Wed 05 Feb 25
3-(Dimethylamino)-1-(2-thienyl)propan-1-ol REF: 3D-ID58104CAS: 13636-02-7	Min. 95%	To inquire	Wed 05 Feb 25
N-Hydroxy-6-(trifluoromethoxy)-2-benzothiazolamine REF: 3D-IH59728CAS: 179070-90-7	Min. 95%	To inquire	Wed 05 Feb 25
Enrofloxacin impurity E REF: 3D-IE167758CAS: 1369495-59-9	Min. 95%	To inquire	Wed 05 Feb 25

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

1mg		138.00 €
2mg		194.00 €
5mg		310.00 €
10mg		472.00 €
25mg		647.00 €

Estimated delivery in United States, on Wednesday 5 Feb 2025

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2′,4′′-Bis-O-(trimethylsilyl)-erythromycin 9-[O-(1-ethoxy-1-methylethyl)oxime]

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2′,4′′-Bis-O-(trimethylsilyl)-erythromycin 9-[O-(1-ethoxy-1-methylethyl)oxime]

CAS:119665-78-0

Please enquire for more information about 2′,4′′-Bis-O-(trimethylsilyl)-erythromycin 9-[O-(1-ethoxy-1-methylethyl)oxime] including the price, delivery time and more …

Formula:

C₄₈H₉₄N₂O₁₄Si₂

Purity:

Min. 95%

Molecular weight:

979.44 g/mol

Ref: 3D-IB183163

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Balsalazide 3-isomer

CAS:1242567-09-4

Balsalazide 3-isomer (BZ3) is a diacid that is used as an anti-hypertensive drug. BZ3 has …

Formula:

C₁₇H₁₅N₃O₆

Purity:

Min. 95%

Molecular weight:

357.32 g/mol

Ref: 3D-IB18132

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Estimated delivery in United States, on Wednesday 5 Feb 2025

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Paclitaxel impurity 2

CAS:959572-72-6

Paclitaxel impurity 2 is an analytical standard for the measurement of paclitaxel purity. Paclitaxel impurity …

Formula:

C₃₃H₄₅NO₈

Purity:

Min. 95%

Molecular weight:

583.71 g/mol

Ref: 3D-IP145575

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Estimated delivery in United States, on Wednesday 5 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

5mg		194.00 €
10mg		341.00 €
25mg		463.00 €
50mg		712.00 €
100mg		1,044.00 €

Estimated delivery in United States, on Wednesday 5 Feb 2025

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3'-Des(dimethylamino)-3'-keto azithromycin

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3'-Des(dimethylamino)-3'-keto azithromycin

CAS:612069-25-7

3'-Des(dimethylamino)-3'-keto azithromycin is a prodrug that is hydrolyzed in vivo to the active form of …

Formula:

C₃₆H₆₅NO₁₃

Purity:

Min. 95%

Molecular weight:

719.9 g/mol

Ref: 3D-AD21086

1mg		801.00 €
2mg		1,160.00 €
5mg		2,087.00 €
10mg		3,768.00 €
500µg		517.00 €

Estimated delivery in United States, on Wednesday 5 Feb 2025

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N2-Losartanyl-losartan

CAS:230971-72-9

N2-Losartanyl-losartan is a drug product that has a CAS number of 230971-72-9. This product is …

Formula:

C₄₄H₄₄Cl₂N₁₂O

Purity:

Min. 95%

Molecular weight:

827.81 g/mol

Ref: 3D-IL24948

1mg		400.00 €
2mg		569.00 €
5mg		949.00 €
10mg		1,594.00 €
25mg		2,806.00 €

Estimated delivery in United States, on Wednesday 5 Feb 2025

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Clarithromycin (9E)-O-Methyloxime

CAS:127182-44-9

Clarithromycin (9E)-O-Methyloxime is an analytical standard for Clarithromycin. It is a metabolite of Clarithromycin and …

Formula:

C₃₉H₇₂N₂O₁₃

Purity:

Min. 95%

Molecular weight:

776.99 g/mol

Ref: 3D-IC166194

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Estimated delivery in United States, on Wednesday 5 Feb 2025

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Triphenylmethanol

CAS:76-84-6

Triphenylmethanol (TPM) is an inhibitor of the enzyme alcohol dehydrogenase. It is synthesized by reacting …

Formula:

C₁₉H₁₆O

Purity:

Min. 95%

Color and Shape:

White Beige Slightly Yellow Powder

Molecular weight:

260.33 g/mol

Ref: 3D-IT28577

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Trazodone Hydrochloride BP Impurity A

CAS:55290-68-1

Trazodone Hydrochloride BP Impurity A is an unproven impurity of Trazodone. It inhibits the uptake …

Formula:

C₁₉H₂₂CIN₅O₂

Purity:

Min. 95%

Molecular weight:

491.33 g/mol

Ref: 3D-IT171024

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Estimated delivery in United States, on Wednesday 5 Feb 2025

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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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Estimated delivery in United States, on Wednesday 5 Feb 2025

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1-C-4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucopyranose

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1-C-4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucopyranose

CAS:461432-27-9

1-C-4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucopyranose is a natural product. It is an API impurity that has been synthesized by …

Formula:

C₂₁H₂₅ClO₇

Purity:

Min. 95%

Molecular weight:

424.87 g/mol

Ref: 3D-IC181108

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3'-Deoxy-3'-chlorothymidine

CAS:25526-94-7

3'-Deoxy-3'-chlorothymidine is an antiviral compound that is synthesized by the on-line coupling of 2,4-dichlorobenzoyl chloride …

Formula:

C₁₀H₁₃ClN₂O₄

Purity:

Min. 95%

Molecular weight:

260.67 g/mol

Ref: 3D-ID45199

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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

1mg		248.00 €
2mg		364.00 €
5mg		517.00 €
10mg		863.00 €
25mg		1,855.00 €

Estimated delivery in United States, on Wednesday 5 Feb 2025

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2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone

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2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone

CAS:22525-95-7

2'-(2,3-Epoxypropoxy)-3-phenylpropiophenone is a research and development impurity standard. It is used as an impurity standard …

Formula:

C₁₈H₁₈O₃

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

282.33 g/mol

Ref: 3D-IE22764

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4-Hydroxy mepivacaine

CAS:616-66-0

4-Hydroxy mepivacaine is a drug product that belongs to the group of local anesthetics. It …

Formula:

C₁₅H₂₂N₂O₂

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

262.35 g/mol

Ref: 3D-IH24043

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Dapagliflozin Impurity 2

CAS:1830346-16-1

Dapagliflozin impurity 2 is an impurity of dapagliflozin. It has been shown to be metabolized …

Formula:

C₁₅H₁₄BrClO

Purity:

Min. 95%

Molecular weight:

325.63 g/mol

Ref: 3D-ID181103

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3-(Dimethylamino)-1-(2-thienyl)propan-1-ol

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3-(Dimethylamino)-1-(2-thienyl)propan-1-ol

CAS:13636-02-7

3-(Dimethylamino)-1-(2-thienyl)propan-1-ol is an organic compound that is used as a chiral building block in the …

Formula:

C₉H₁₅NOS

Purity:

Min. 95%

Molecular weight:

185.29 g/mol

Ref: 3D-ID58104

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N-Hydroxy-6-(trifluoromethoxy)-2-benzothiazolamine

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N-Hydroxy-6-(trifluoromethoxy)-2-benzothiazolamine

CAS:179070-90-7

N-Hydroxy-6-(trifluoromethoxy)-2-benzothiazolamine (NHTB) is a drug that has been shown to have clinical use as an …

Formula:

C₈H₅F₃N₂O₂S

Purity:

Min. 95%

Molecular weight:

250.2 g/mol

Ref: 3D-IH59728

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Estimated delivery in United States, on Wednesday 5 Feb 2025

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Enrofloxacin impurity E

CAS:1369495-59-9

Enrofloxacin impurity E is a product of the synthesis of enrofloxacin, with high purity and …

Formula:

C₁₉H₂₂ClN₃O₃

Purity:

Min. 95%

Molecular weight:

375.85 g/mol

Ref: 3D-IE167758

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Estimated delivery in United States, on Wednesday 5 Feb 2025

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