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
Hydrocortisone 17-Acetate REF: TR-H714695CAS: 16463-74-4	- - -	350.00 €~2,308.00 €	Tue 04 Feb 25
Sunitinib 9'N-Methyl REF: TR-S820015	- - -	318.00 €~2,145.00 €	Tue 04 Feb 25
(R)-3’’-Hydroxy Pravastatin Sodium Salt REF: TR-H952285CAS: 722504-46-3	- - -	564.00 €~4,079.00 €	Tue 04 Feb 25
4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid Methyl Ester REF: TR-P307500CAS: 61085-60-7	- - -	308.00 €~2,059.00 €	Tue 04 Feb 25
N-Benzyl Carvedilol REF: TR-B233670CAS: 72955-94-3	- - -	296.00 €~2,053.00 €	Tue 04 Feb 25
4-tert-Butylaminoethyl-2-methylphenol REF: TR-B690870CAS: 132183-64-3	- - -	352.00 €~2,322.00 €	Tue 04 Feb 25
2-Chloroethylamine Hydrochloride REF: TR-C367585CAS: 870-24-6	- - -	193.00 €~256.00 €	Tue 04 Feb 25
Dehydro Silodosin REF: TR-D446450CAS: 175870-21-0	- - -	345.00 €~2,308.00 €	Tue 04 Feb 25
Meconic Acid REF: TR-M202890CAS: 497-59-6	- - -	307.00 €~2,080.00 €	Tue 04 Feb 25
N-Desmethyl-N-ethyl Pentylone REF: TR-D291455CAS: 17763-02-9	- - -	136.00 €~790.00 €	Tue 04 Feb 25
Fluticasone Acetate REF: TR-F599450CAS: 80474-24-4	- - -	360.00 €~2,463.00 €	Tue 04 Feb 25
Alpha-Acetyl Digoxin REF: TR-A173660CAS: 5511-98-8	- - -	387.00 €~2,624.00 €	Tue 04 Feb 25
(6Alpha,11Beta,16Alpha,17Alpha)-(6'Alpha,11'Beta,16'Alpha,17'Alpha)-17,17'-(Trithiodicarbonyl)bis[6,9-difluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-androsta-1,4-dien-3-one REF: TR-T886430CAS: 960071-64-1	- - -	201.00 €~1,059.00 €	Tue 04 Feb 25
8-Desethyl Etodolac REF: TR-D289315CAS: 41339-67-7	- - -	361.00 €~2,346.00 €	Tue 04 Feb 25
(S)-alpha,alpha-Diphenyl-3-pyrrolidineacetamide L-Tartrate REF: TR-D491886CAS: 134002-26-9	- - -	256.00 €~1,174.00 €	Tue 04 Feb 25
5,6-Dehydro-17Beta-dutasteride REF: TR-D229560CAS: 1430804-85-5	- - -	668.00 €~2,644.00 €	Tue 04 Feb 25
Nicardipine O-Desmethyl-O-methyl(phenylmethyl)amino]ethyl) Ester Hydrochloride REF: TR-N394510CAS: 71791-90-7	- - -	361.00 €~2,346.00 €	Tue 04 Feb 25
Methotrexate a-Methyl Ester (>90%) REF: TR-M260700CAS: 66147-29-3	>90%	355.00 €~2,313.00 €	Tue 04 Feb 25
N-Desmethyl Regorafenib (Pyridine)-N-oxide REF: TR-D293280CAS: 835621-12-0	- - -	349.00 €~2,237.00 €	Tue 04 Feb 25
Ivermectin B1 Monosaccharide REF: TR-I940810CAS: 71837-27-9	- - -	337.00 €~2,203.00 €	Tue 04 Feb 25

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Hydrocortisone 17-Acetate

Controlled Product

CAS:16463-74-4

Impurity Hydrocortisone EP Impurity J Applications Hydrocortisone 17-Acetate (Hydrocortisone EP Impurity J) is a glucocorticoid …

Formula:

C₂₃H₃₂O₆

Color and Shape:

White To Off-White

Molecular weight:

404.50

Ref: TR-H714695

50mg		350.00 €
500mg		2,308.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Sunitinib 9'N-Methyl

Controlled Product

Applications Sunitinib 9’N-Methyl is an impurity of Sunitinib (S819995), a multi-kinase inhibitor targeting several receptor …

Formula:

C₂₃H₂₉FN₄O₂

Color and Shape:

Neat

Molecular weight:

412.5

Ref: TR-S820015

10mg		318.00 €
50mg		1,231.00 €
100mg		2,145.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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(R)-3’’-Hydroxy Pravastatin Sodium Salt

Controlled Product

CAS:722504-46-3

Stability Hygroscopic Applications The (R)-3’’-hydroxylated metabolite of Pravastatin in humans. References Everett, D. W., et …

Formula:

C₂₃H₃₅O₈·Na

Color and Shape:

White To Light Yellow

Molecular weight:

462.51

Ref: TR-H952285

5mg		4,079.00 €
500µg		564.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid Methyl Ester

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4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid Methyl Ester

Controlled Product

CAS:61085-60-7

Applications Remifentanil derivative. References James, M.K., et al.: J. Pharmacol. Exp. Ther., 259, 712 (1991), …

Formula:

C₂₀H₂₄N₂O₂

Color and Shape:

Neat

Molecular weight:

324.4168

Ref: TR-P307500

25mg		308.00 €
250mg		2,059.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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N-Benzyl Carvedilol

Controlled Product

CAS:72955-94-3

Impurity Carvedilol EP Impurity C; Carvedilol Impurity C; Carvedilol USP C Applications N-Benzyl Carvedilol (Carvedilol …

Formula:

C₃₁H₃₂N₂O₄

Color and Shape:

Neat

Molecular weight:

496.60

Ref: TR-B233670

25mg		296.00 €
250mg		2,053.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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4-tert-Butylaminoethyl-2-methylphenol

Controlled Product

CAS:132183-64-3

Impurity Salbutamol EP Impurity H Applications 4-tert-Butylaminoethyl-2-methylphenol (Salbutamol EP Impurity H) is an impurity of …

Formula:

C₁₃H₂₁NO

Color and Shape:

Neat

Molecular weight:

207.31

Ref: TR-B690870

10mg		352.00 €
100mg		2,322.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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2-Chloroethylamine Hydrochloride

Controlled Product

CAS:870-24-6

Applications 2-Chloroethylamine Hydrochloride is used as a reagent in the synthesis of 6-desfluoroquinolones as potential …

Formula:

C₂H₆ClN·ClH

Color and Shape:

Neat

Molecular weight:

115.99

Ref: TR-C367585

25g		193.00 €
100g		256.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Dehydro Silodosin

Controlled Product

CAS:175870-21-0

Applications Dehydro Silodosin is an impurity of Silodosin (S465000). References Moriyama., et al.: Eur. J. …

Formula:

C₂₅H₃₀F₃N₃O₄

Color and Shape:

Neat

Molecular weight:

493.52

Ref: TR-D446450

10mg		345.00 €
100mg		2,308.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Meconic Acid

Controlled Product

CAS:497-59-6

Applications Meconic Acid has anti inflammatory and antibacterial action. Meconic Acid has been used to …

Formula:

C₇H₄O₇

Color and Shape:

Neat

Molecular weight:

200.10

Ref: TR-M202890

25mg		307.00 €
250mg		2,080.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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N-Desmethyl-N-ethyl Pentylone

Controlled Product

CAS:17763-02-9

Applications N-Desmethyl-N-ethyl Pentylone is an impurity of Pentylone (M286880); an analog of MDMA (M303985, HCl) …

Formula:

C₁₄H₁₉NO₃·ClH

Color and Shape:

Off-White

Molecular weight:

285.77

Ref: TR-D291455

5mg		136.00 €
25mg		445.00 €
50mg		790.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Fluticasone Acetate

CAS:80474-24-4

Impurity Fluticasone EP Impurity C Applications Fluticasone Acetate is an impurity of Fluticasone Propionate (F599500), …

Formula:

C₂₄H₂₉F₃O₅S

Color and Shape:

Neat

Molecular weight:

486.54

Ref: TR-F599450

10mg		360.00 €
100mg		2,463.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Alpha-Acetyl Digoxin

Controlled Product

CAS:5511-98-8

Applications Digoxin derivative, a cardiotonic glycosides steroid. Not a dangerous good if item is equal …

Formula:

C₄₃H₆₆O₁₅

Color and Shape:

Neat

Molecular weight:

822.98

Ref: TR-A173660

1mg		677.00 €
5mg		2,624.00 €
500µg		387.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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(6Alpha,11Beta,16Alpha,17Alpha)-(6'Alpha,11'Beta,16'Alpha,17'Alpha)-17,17'-(Trithiodicarbonyl)bis[…

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(6Alpha,11Beta,16Alpha,17Alpha)-(6'Alpha,11'Beta,16'Alpha,17'Alpha)-17,17'-(Trithiodicarbonyl)bis[6,9-difluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-androsta-1,4-dien-3-one

CAS:960071-64-1

Impurity Fluticasone EP Impurity I Applications Dimerized impurity of Fluticasone propionate (F599500), a antiallergic, anti-asthmatic …

Formula:

C₄₈H₅₈F₄O₁₀S₃

Color and Shape:

Neat

Molecular weight:

967.16

Ref: TR-T886430

10mg		201.00 €
25mg		375.00 €
100mg		1,059.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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8-Desethyl Etodolac

Controlled Product

CAS:41339-67-7

Impurity Etodolac EP Impurity A Applications 8-Desethyl Etodolac (Etodolac EP Impurity A) is an impurity …

Formula:

C₁₅H₁₇NO₃

Color and Shape:

Neat

Molecular weight:

259.30

Ref: TR-D289315

25mg		361.00 €
250mg		2,346.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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(S)-alpha,alpha-Diphenyl-3-pyrrolidineacetamide L-Tartrate

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(S)-alpha,alpha-Diphenyl-3-pyrrolidineacetamide L-Tartrate

Controlled Product

CAS:134002-26-9

Formula:

C₁₈H₂₀N₂O·C₄H₆O₆

Color and Shape:

Neat

Molecular weight:

430.45

Ref: TR-D491886

1g		256.00 €
10g		1,174.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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5,6-Dehydro-17Beta-dutasteride

Controlled Product

CAS:1430804-85-5

Impurity Dutateride EP Impurity G Applications 5,6-Dehydro-dutasteride (Dutateride EP Impurity G) is an impurity in …

Formula:

C₂₇H₂₈F₆N₂O₂

Color and Shape:

Neat

Molecular weight:

526.51

Ref: TR-D229560

5mg		668.00 €
25mg		2,644.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Nicardipine O-Desmethyl-O-methyl(phenylmethyl)amino]ethyl) Ester Hydrochloride

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Nicardipine O-Desmethyl-O-methyl(phenylmethyl)amino]ethyl) Ester Hydrochloride

CAS:71791-90-7

Applications Nicardipine (N394500) impurity. Nicardipine is a dihydropyridine calcium channel blocker. Antianginal; antihypertensive. Not a …

Formula:

C₃₅H₄₀N₄O₆·x(HCl)

Color and Shape:

Neat

Molecular weight:

612.723646

Ref: TR-N394510

25mg		361.00 €
250mg		2,346.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Methotrexate a-Methyl Ester (>90%)

Controlled Product

CAS:66147-29-3

Impurity Methotrexate EP Impurity I Applications Methotrexate α-methyl ester is an impurity of Methotrexate (M260675), …

Formula:

C₂₁H₂₄N₈O₅

Purity:

>90%

Color and Shape:

Neat

Molecular weight:

468.47

Ref: TR-M260700

10mg		355.00 €
100mg		2,313.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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N-Desmethyl Regorafenib (Pyridine)-N-oxide

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N-Desmethyl Regorafenib (Pyridine)-N-oxide

Controlled Product

CAS:835621-12-0

Stability Light Sensitive Applications N-Desmethyl Regorafenib (Pyridine)-N-oxide is a synthetic metabolite of Regorafenib (R143000) and …

Formula:

C₂₀H₁₃ClF₄N₄O₄

Color and Shape:

Neat

Molecular weight:

484.79

Ref: TR-D293280

10mg		349.00 €
100mg		2,237.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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Ivermectin B1 Monosaccharide

Controlled Product

CAS:71837-27-9

Applications Ivermectin B1 Mono-sugar Derivative is an impurity of Ivermectin (I940800), an antiparasitic drug that …

Formula:

C₄₁H₆₂O₁₁

Color and Shape:

Neat

Molecular weight:

730.92

Ref: TR-I940810

50mg		337.00 €
500mg		2,203.00 €

Estimated delivery in United States, on Tuesday 4 Feb 2025

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