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
Difenoxin Hydrochloride REF: TR-D445400CAS: 35607-36-4	- - -	321.00 €~2,051.00 €	Fri 13 Dec 24
Tazarotenic Acid Sulfoxide REF: TR-T010070CAS: 603952-64-3	- - -	316.00 €~2,114.00 €	Fri 13 Dec 24
Raloxifene N-Oxide REF: TR-R100050CAS: 195454-31-0	- - -	191.00 €~1,701.00 €	Fri 13 Dec 24
2-Chloro-10,11-dihydro-11-oxo-dibenzo[b,f][1,4]oxazepine REF: TR-C365290CAS: 3158-91-6	- - -	176.00 €~236.00 €	Fri 13 Dec 24
2-(1-Hydroxyethyl) Promazine Sulfoxide (mixture of diastereomers) REF: TR-H942290CAS: 73644-42-5	- - -	278.00 €~4,086.00 €	Fri 13 Dec 24
Tacrolimus Methyl Acryl Aldehyde REF: TR-T004150CAS: 109466-74-2	- - -	363.00 €~2,467.00 €	Fri 13 Dec 24
17-Hydroxy-3,11-dioxo-androsta-1,4-diene-17β-carboxylic Acid REF: TR-H934540CAS: 78261-67-3	- - -	313.00 €~1,993.00 €	Fri 13 Dec 24
AHR 11652 REF: TR-A435000CAS: 241825-88-7	- - -	497.00 €~3,332.00 €	Fri 13 Dec 24
Hydrocortisone 17-Acetate REF: TR-H714695CAS: 16463-74-4	- - -	324.00 €~2,109.00 €	Fri 13 Dec 24
6,7-Dimethylpterin REF: TR-D477915CAS: 611-55-2	- - -	244.00 €~1,410.00 €	Fri 13 Dec 24
Podophyllotoxin 4-O-Glucoside REF: TR-P681010CAS: 16481-54-2	- - -	315.00 €~2,155.00 €	Fri 13 Dec 24
Sunitinib 9’N-Methyl REF: TR-S820015	- - -	293.00 €~1,981.00 €	Fri 13 Dec 24
N-(2-Aminoethyl)-4-(1,1-dimethylethyl)-2,6-dimethylbenzeneacetamide REF: TR-A608945CAS: 94266-17-8	- - -	304.00 €~1,970.00 €	Fri 13 Dec 24
2,3,5-Trimethylpyridine N-Oxide REF: TR-T796705CAS: 74409-42-0	- - -	311.00 €~2,013.00 €	Fri 13 Dec 24
(R)-3’’-Hydroxy Pravastatin Sodium Salt REF: TR-H952285CAS: 722504-46-3	- - -	504.00 €~3,576.00 €	Fri 13 Dec 24
3-Hydroxy-4-morpholino-1,2,5-thiazole REF: TR-H948475CAS: 30165-97-0	- - -	285.00 €~1,890.00 €	Fri 13 Dec 24
4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid Methyl Ester REF: TR-P307500CAS: 61085-60-7	- - -	284.00 €~1,907.00 €	Fri 13 Dec 24
cis-1-Hydroxy-2,7-diamino Mitosene REF: TR-H939705CAS: 98462-75-0	- - -	316.00 €~2,020.00 €	Fri 13 Dec 24
10-Hydroxy Camptothecin REF: TR-H875000CAS: 19685-09-7	- - -	111.00 €~703.00 €	Fri 13 Dec 24
Ethylmedetomidine Hydrochloride REF: TR-E922010	- - -	324.00 €~2,150.00 €	Fri 13 Dec 24

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Difenoxin Hydrochloride

Controlled Product

CAS:35607-36-4

Impurity Diphenoxylate EP Impurity A Applications The active metabolite of Diphenoxylate. Antiperistaltic; antidiarrheal. This is …

Formula:

C₂₈H₂₈N₂O₂

Color and Shape:

Neat

Molecular weight:

460.995

Ref: TR-D445400

5mg		321.00 €
50mg		2,051.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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Tazarotenic Acid Sulfoxide

Controlled Product

CAS:603952-64-3

Applications Tazarotenic Acid Sulfoxide is the inactive sulfoxide metabolite of Tazarotenic Acid (T010060). References Cashman, …

Formula:

C₁₉H₁₇NO₃S

Color and Shape:

Neat

Molecular weight:

339.41

Ref: TR-T010070

10mg		316.00 €
100mg		2,114.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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Raloxifene N-Oxide

Controlled Product

CAS:195454-31-0

Impurity Raloxifene EP Impurity C Applications Raloxifene N-Oxide (Raloxifene EP Impurity C) is a Raloxifene …

Formula:

C₂₈H₂₇NO₅S

Color and Shape:

Light Yellow To Yellow

Molecular weight:

489.58

Ref: TR-R100050

5mg		191.00 €
10mg		282.00 €
100mg		1,701.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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2-Chloro-10,11-dihydro-11-oxo-dibenzo[b,f][1,4]oxazepine

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2-Chloro-10,11-dihydro-11-oxo-dibenzo[b,f][1,4]oxazepine

Controlled Product

CAS:3158-91-6

Formula:

C₁₃H₈ClNO₂

Color and Shape:

Neat

Molecular weight:

245.66

Ref: TR-C365290

1g		236.00 €
500mg		176.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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2-(1-Hydroxyethyl) Promazine Sulfoxide (mixture of diastereomers)

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2-(1-Hydroxyethyl) Promazine Sulfoxide (mixture of diastereomers)

CAS:73644-42-5

Applications A metabolite of Promazine (P756300). References Dewey, E.A., et al.: Drug Metab. Dispos., 9, …

Formula:

C₁₉H₂₄N₂O₂S

Color and Shape:

Neat

Molecular weight:

344.47

Ref: TR-H942290

10mg		588.00 €
100mg		4,086.00 €
2500µg		278.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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Tacrolimus Methyl Acryl Aldehyde

Controlled Product

CAS:109466-74-2

Impurity Tacrolimus Methylacryl Aldehyde (USP) Applications Tacrolimus Methyl Acryl Aldehyde is the degradation product of …

Formula:

C₁₁H₁₈O₃

Color and Shape:

Neat

Molecular weight:

198.26

Ref: TR-T004150

10mg		363.00 €
100mg		2,467.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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17-Hydroxy-3,11-dioxo-androsta-1,4-diene-17β-carboxylic Acid

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17-Hydroxy-3,11-dioxo-androsta-1,4-diene-17β-carboxylic Acid

Controlled Product

CAS:78261-67-3

Applications 17-Hydroxy-3,11-dioxo-androsta-1,4-diene-17β-carboxylic Acid is an intermediate used to prepare (11β,17α)-17-[(Ethoxycarbonyl)oxy]-11-hydroxy-3-oxo-androsta-1,4-diene-17-carboxylic acid (E890570) which is a …

Formula:

C₂₀H₂₄O₅

Color and Shape:

Neat

Molecular weight:

344.40

Ref: TR-H934540

1g		313.00 €
10g		1,993.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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AHR 11652

Controlled Product

CAS:241825-88-7

Applications AHR 11652 is a metabolite of Bromfenac sodium (B678550). References Walsh, D.A., et al.: …

Formula:

C₁₅H₈BrNO₃

Color and Shape:

Neat

Molecular weight:

330.13

Ref: TR-A435000

10mg		497.00 €
100mg		3,332.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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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		324.00 €
500mg		2,109.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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6,7-Dimethylpterin

Controlled Product

CAS:611-55-2

Applications 6,7-Dimethylpterin, a derivative of Folic Acid (F680300) is used as a biomarker for a …

Formula:

C₈H₉N₅O

Color and Shape:

Neat

Molecular weight:

191.19

Ref: TR-D477915

1g		244.00 €
10g		1,410.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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Podophyllotoxin 4-O-Glucoside

Controlled Product

CAS:16481-54-2

Applications Podophyllotoxin 4-O-glucoside is the glucoside derivative of Podophyllotoxin (P681000), a skin treatment for genital …

Formula:

C₃₅H₃₆O₁₃

Color and Shape:

Neat

Molecular weight:

664.65

Ref: TR-P681010

1mg		548.00 €
5mg		2,155.00 €
500µg		315.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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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		293.00 €
50mg		1,136.00 €
100mg		1,981.00 €

Estimated delivery in United States, on Friday 13 Dec 2024

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N-(2-Aminoethyl)-4-(1,1-dimethylethyl)-2,6-dimethylbenzeneacetamide

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N-(2-Aminoethyl)-4-(1,1-dimethylethyl)-2,6-dimethylbenzeneacetamide

CAS:94266-17-8

Impurity Xylometazoline EP Impurity A Applications N-(2-Aminoethyl)-4-(1,1-dimethylethyl)-2,6-dimethylbenzeneacetamide (Xylometazoline EP Impurity A) is a possible metabolite …

Formula:

C₁₆H₂₆N₂O

Color and Shape:

White To Light Yellow

Molecular weight:

262.39