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-Amino-N-(2-chloro-6-methylphenyl)-5-thiazolecarboxamide REF: TR-A603910CAS: 302964-24-5	- - -	325.00 €~2,119.00 €	Mon 28 Oct 24
4-Chloro Kynurenine-13C2,15N REF: TR-C366942CAS: 1391051-72-1	- - -	315.00 €~2,048.00 €	Mon 28 Oct 24
6-Amino-5(2,2-diethoxyethyl)-4-hydroxy-2-mercaptopyrimidine REF: TR-A604875CAS: 7400-05-7	- - -	200.00 €	Mon 28 Oct 24
4’-Hydroxyphenyl Carvedilol-d3 REF: TR-H949121CAS: 1189675-28-2	- - -	319.00 €~2,079.00 €	Mon 28 Oct 24
5-Acetylamino-6-amino-3-methyluracil Hydrate REF: TR-A168125CAS: 1196153-01-1	- - -	252.00 €~1,715.00 €	Mon 28 Oct 24
Amprenavir REF: TR-A634400CAS: 161814-49-9	- - -	89.00 €~721.00 €	Mon 28 Oct 24
N-(2,6-Dichlorophenyl)isatin REF: TR-D436885CAS: 24542-74-3	- - -	269.00 €	Mon 28 Oct 24
b-Methyl Digoxin REF: TR-M301850CAS: 30685-43-9	- - -	186.00 €~832.00 €	Mon 28 Oct 24
5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)thioxomethyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione REF: TR-E892530CAS: 1333233-46-7	- - -	324.00 €~2,139.00 €	Mon 28 Oct 24
6a,9a-Difluoroprednisolone 17-Acetate REF: TR-D446295CAS: 23674-85-3	- - -	330.00 €~2,139.00 €	Mon 28 Oct 24
(3RS)-1,3-Bis[4,-2-(methylpropyl)phenyl]butan-1-one REF: TR-B496800CAS: 2143535-25-3	- - -	293.00 €~1,987.00 €	Mon 28 Oct 24
(R)-Omeprazole Sodium Salt REF: TR-O635010CAS: 161796-77-6	- - -	195.00 €~1,372.00 €	Mon 28 Oct 24
3-Acetyl Rocuronium Bromide REF: TR-A187730CAS: 122483-73-2	- - -	358.00 €~2,462.00 €	Mon 28 Oct 24
(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester REF: TR-E589325CAS: 192704-82-8	- - -	293.00 €~1,981.00 €	Mon 28 Oct 24
1’-Hydroxy Midazolam-13C3 REF: TR-H948422CAS: 1189677-14-2	- - -	2,135.00 €~16,988.00 €	Mon 28 Oct 24
2-Methoxy-4-amino-5-ethylsulfonylbenzoic Acid REF: TR-M260880CAS: 71675-87-1	- - -	116.00 €~209.00 €	Mon 28 Oct 24
Propoxyphenyl Thiosildenafil REF: TR-P831635CAS: 479073-87-5	- - -	316.00 €~2,079.00 €	Mon 28 Oct 24
Furanylfentanyl Hydrochloride REF: TR-F864085CAS: 101365-56-4	- - -	128.00 €~1,163.00 €	Mon 28 Oct 24
6-Oxo Norethindrone Acetate REF: TR-O858290CAS: 438244-27-0	- - -	246.00 €~1,649.00 €	Mon 28 Oct 24
5-Deazariboflavin REF: TR-D203220CAS: 19342-73-5	- - -	325.00 €~2,148.00 €	Mon 28 Oct 24

2-Amino-N-(2-chloro-6-methylphenyl)-5-thiazolecarboxamide

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2-Amino-N-(2-chloro-6-methylphenyl)-5-thiazolecarboxamide

Controlled Product

CAS:302964-24-5

Formula:

C₁₁H₁₀ClN₃OS

Color and Shape:

Neat

Molecular weight:

267.73

Ref: TR-A603910

1g		325.00 €
10g		2,119.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4-Chloro Kynurenine-13C2,15N

Controlled Product

CAS:1391051-72-1

Applications 7-Cl-kynurenic acid (7-Cl-KYNA) is a potent, selective antagonist of the NMDA/glycine receptor but penetrates …

Formula:

C₈₁₃C₂H₁₁ClN₁₅NO₃

Color and Shape:

Neat

Molecular weight:

245.64

Ref: TR-C366942

1mg		315.00 €
10mg		2,048.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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6-Amino-5(2,2-diethoxyethyl)-4-hydroxy-2-mercaptopyrimidine

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6-Amino-5(2,2-diethoxyethyl)-4-hydroxy-2-mercaptopyrimidine

Controlled Product

CAS:7400-05-7

Formula:

C₁₀H₁₇N₃O₃S

Color and Shape:

Neat

Molecular weight:

259.33

Ref: TR-A604875

1g 200.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4’-Hydroxyphenyl Carvedilol-d3

Controlled Product

CAS:1189675-28-2

Applications A labelled metabolite of Carvedilol (C184625). It is used in the treatment of hypertension. …

Formula:

C₂₄H₃H₂₃N₂O₅

Color and Shape:

Neat

Molecular weight:

425.49

Ref: TR-H949121

1mg		319.00 €
10mg		2,079.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-Acetylamino-6-amino-3-methyluracil Hydrate

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5-Acetylamino-6-amino-3-methyluracil Hydrate

Controlled Product

CAS:1196153-01-1

Applications Metabolite of Caffeine (C080100). References Wong, P., et al.: J. Pharm. Biomed. Anal., 28, …

Formula:

C₇H₁₂N₄O₄

Color and Shape:

Neat

Molecular weight:

216.19

Ref: TR-A168125

10mg		252.00 €
100mg		1,715.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Amprenavir

Controlled Product

CAS:161814-49-9

Applications A selective HIV protease inhibitor. An analogue of Ritonavir. References Adkins, J.C., et al.: …

Formula:

C₂₅H₃₅N₃O₆S

Color and Shape:

White To Beige

Molecular weight:

505.63

Ref: TR-A634400

1mg		89.00 €
5mg		106.00 €
50mg		721.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-(2,6-Dichlorophenyl)isatin

CAS:24542-74-3

Applications N-(2,6-Dichlorophenyl)isatin can be obtained from 2,6-Dichloroiodobenzene (D434690) which is a reactant in the synthesis …

Formula:

C₁₄H₇Cl₂NO₂

Color and Shape:

Yellow To Dark Orange

Molecular weight:

292.12

Ref: TR-D436885

50mg 269.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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b-Methyl Digoxin

CAS:30685-43-9

Applications Cardiotonic. Obtained by the O-methylation of Digoxin. Not a dangerous good if item is …

Formula:

C₄₂H₆₆O₁₄

Color and Shape:

Neat

Molecular weight:

794.97

Ref: TR-M301850

1mg		186.00 €
10mg		832.00 €
2500µg		305.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)thioxomethyl]phenyl]-1,6-dihydro-1-methyl-3…

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5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)thioxomethyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione

Controlled Product

CAS:1333233-46-7

Formula:

C₂₃H₃₀N₆OS₂

Color and Shape:

Neat

Molecular weight:

470.65

Ref: TR-E892530

10mg		324.00 €
100mg		2,139.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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6a,9a-Difluoroprednisolone 17-Acetate

Controlled Product

CAS:23674-85-3

Applications 6α,9α-Difluoroprednisolone 17-Acetate, is an impurity of Difluprednate (D445925), which is shown to have antiinflammatory …

Formula:

C₂₃H₂₈F₂O₆

Color and Shape:

White To Off-White

Molecular weight:

438.46

Ref: TR-D446295

10mg		330.00 €
100mg		2,139.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(3RS)-1,3-Bis[4,-2-(methylpropyl)phenyl]butan-1-one

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(3RS)-1,3-Bis[4,-2-(methylpropyl)phenyl]butan-1-one

Controlled Product

CAS:2143535-25-3

Formula:

C₂₄H₃₂O

Color and Shape:

Colourless To Light Yellow

Molecular weight:

336.51

Ref: TR-B496800

25mg		293.00 €
250mg		1,987.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(R)-Omeprazole Sodium Salt

CAS:161796-77-6

Applications R-Form of Omeprazole. Gastric proton-pump inhibitor. References Stenhoff, H., et al.: J. Chromatogr., 734, …

Formula:

C₁₇H₁₈N₃O₃S·Na

Color and Shape:

Neat

Molecular weight:

367.40

Ref: TR-O635010

1mg		195.00 €
10mg		1,372.00 €
2500µg		462.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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3-Acetyl Rocuronium Bromide

Controlled Product

CAS:122483-73-2

Impurity Rocuronium EP Impurity B Applications 3-Acetyl Rocuronium Bromide (Rocuronium EP Impurity B) is an …

Formula:

C₃₄H₅₅N₂O₅·Br

Color and Shape:

Neat

Molecular weight:

651.71

Ref: TR-A187730

50mg		358.00 €
500mg		2,462.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl E…

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(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester

CAS:192704-82-8

Applications (7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester is an impurity of eplerenone (E588775). Eplerenone is a …

Formula:

C₂₄H₃₀O₆

Color and Shape:

Neat

Molecular weight:

414.491