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
Tosylurethane REF: TR-T686900CAS: 5577-13-9	- - -	252.00 €~1,694.00 €	Mon 28 Oct 24
Acetildenafil REF: TR-A161600CAS: 831217-01-7	- - -	117.00 €~761.00 €	Mon 28 Oct 24
9-[4-Acetoxy-3-(acetoxymethyl)butyl]-2-amino-6-chloropurine REF: TR-A164140CAS: 97845-60-8	- - -	308.00 €~1,544.00 €	Mon 28 Oct 24
Miconazole N-(2-Methyl)propanoate REF: TR-M342515CAS: 1370335-38-8	- - -	330.00 €~2,188.00 €	Mon 28 Oct 24
(1R,3R,4R)-Entecavir REF: TR-E558935CAS: 1367369-76-3	- - -	582.00 €~1,342.00 €	Mon 28 Oct 24
Deiodo Amiodarone REF: TR-D229025CAS: 1397201-93-2	- - -	341.00 €~2,190.00 €	Mon 28 Oct 24
3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin REF: TR-A168295CAS: 612069-30-4	- - -	315.00 €~2,039.00 €	Mon 28 Oct 24
trans-trans-10,11-Epoxy Farnesenic Acid-d3 Methyl Ester REF: TR-E589402CAS: 951116-89-5	- - -	346.00 €~2,297.00 €	Mon 28 Oct 24
(2b)-Methyl Megestrol Acetate REF: TR-M320245CAS: 1259198-59-8	- - -	383.00 €~2,618.00 €	Mon 28 Oct 24
Hydroxy Pioglitazone-d4 (M-IV) REF: TR-H952078CAS: 1188263-49-1	- - -	324.00 €~2,074.00 €	Mon 28 Oct 24
N-[(2E)-6,6-Dimethyl-2-hepten-4-yn-1-yl]-N-methyl-2-naphthalenemethanamine Hydrochloride REF: TR-D473210CAS: 877265-30-0	- - -	326.00 €~2,046.00 €	Mon 28 Oct 24
5-Hydroxy Topotecan Dihydrochloride (Mixture of Diastereomers) REF: TR-H954455CAS: 504413-73-4	- - -	260.00 €~1,747.00 €	Mon 28 Oct 24
3-Amino-1-propanol REF: TR-A628130CAS: 156-87-6	- - -	110.00 €~241.00 €	Mon 28 Oct 24
N-Acetyl Sulfadiazine REF: TR-A187810CAS: 127-74-2	- - -	252.00 €~2,163.00 €	Mon 28 Oct 24
N-Ethyl-N-(4-picolyl)atropamide REF: TR-E686515CAS: 57322-50-6	- - -	380.00 €	Mon 28 Oct 24
1-Methyl Ethynyl Estradiol REF: TR-M304960CAS: 15071-66-6	- - -	259.00 €~1,747.00 €	Mon 28 Oct 24
Garamine Triacetate Salt (Gentamicin Impurity) REF: TR-G245300CAS: 49751-51-1	- - -	347.00 €~2,202.00 €	Mon 28 Oct 24
Tenamfetamine Hydrochloride REF: TR-M303965CAS: 6292-91-7	- - -	173.00 €~2,391.00 €	Mon 28 Oct 24
N-[(1S)-2-Amino-2-oxo-1-(phenylmethyl)ethyl]-2-pyrazinecarboxamide REF: TR-A622540CAS: 289472-80-6	- - -	174.00 €~1,903.00 €	Mon 28 Oct 24
Bisnortilidine REF: TR-B508850CAS: 53948-51-9	- - -	231.00 €~320.00 €	Mon 28 Oct 24

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Tosylurethane

Controlled Product

CAS:5577-13-9

Impurity Gliclazide EP Impurity C Applications Tosylurethane (Gliclazide EP Impurity C) is an intermediate in …

Formula:

C₁₀H₁₃NO₄S

Color and Shape:

Off White

Molecular weight:

243.28

Ref: TR-T686900

1g		252.00 €
10g		1,694.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Acetildenafil

Controlled Product

CAS:831217-01-7

Applications It is a designer drug which acts as a phosphodiesterase inhibitor. It is a …

Formula:

C₂₅H₃₄N₆O₃

Color and Shape:

Off-White

Molecular weight:

466.58

Ref: TR-A161600

1mg		117.00 €
10mg		761.00 €
2500µg		285.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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9-[4-Acetoxy-3-(acetoxymethyl)butyl]-2-amino-6-chloropurine

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9-[4-Acetoxy-3-(acetoxymethyl)butyl]-2-amino-6-chloropurine

Controlled Product

CAS:97845-60-8

Impurity 6-Chloro Famciclovir Impurity Applications 9-[4-Acetoxy-3-(acetoxymethyl)butyl]-2-amino-6-chloropurine is an impurity of Famciclovir (F101125), an antiviral agent …

Formula:

C₁₄H₁₈ClN₅O₄

Color and Shape:

Neat

Molecular weight:

355.78

Ref: TR-A164140

1g		308.00 €
10g		1,544.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Miconazole N-(2-Methyl)propanoate

Controlled Product

CAS:1370335-38-8

Applications Miconazole N-(2-Methyl)propanoate is an impurity of Miconazole (M342500). Miconazole EP Impurity E.

Formula:

C₂₂H₂₀Cl₄N₂O₃

Color and Shape:

Neat

Molecular weight:

502.22

Ref: TR-M342515

50mg		330.00 €
500mg		2,188.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(1R,3R,4R)-Entecavir

Controlled Product

CAS:1367369-76-3

Applications (1R,3R,4R)-Entecavir is an isomeric impurity of Entecavir (E558900).

Formula:

C₁₂H₁₅N₅O₃

Color and Shape:

Neat

Molecular weight:

277.28

Ref: TR-E558935

1mg		582.00 €
2500µg		1,342.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Deiodo Amiodarone

Controlled Product

CAS:1397201-93-2

Impurity Amiodarone EP Impurity C /Amiodarone USP Related Compound C Applications An intermediate of Amiodarone …

Formula:

C₂₅H₃₀INO₃·ClH

Color and Shape:

Neat

Molecular weight:

519.415

Ref: TR-D229025

10mg		341.00 €
100mg		2,190.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin

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3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin

CAS:612069-30-4

Impurity USP Azithromycin Related Impurity H /Azithromycin EP Impurity H Stability Hygroscopic Applications 3'-N-[[4-(acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin …

Formula:

C₄₅H₇₇N₃O₁₅S

Color and Shape:

Brown

Molecular weight:

932.17

Ref: TR-A168295

10mg		315.00 €
100mg		2,039.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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trans-trans-10,11-Epoxy Farnesenic Acid-d3 Methyl Ester

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trans-trans-10,11-Epoxy Farnesenic Acid-d3 Methyl Ester

Controlled Product

CAS:951116-89-5

Applications Labelled trans-trans-10,11-Epoxy Farnesenic Acid Methyl Ester (E589400). trans-trans-10,11-Epoxy Farnesenic Acid Methyl Ester is a …

Formula:

C₁₆H₂₃D₃O₃

Color and Shape:

Neat

Molecular weight:

269.39

Ref: TR-E589402

25mg		2,297.00 €
2500µg		346.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(2b)-Methyl Megestrol Acetate

Controlled Product

CAS:1259198-59-8

Impurity Megestrol Acetate EP Impurity G Applications (2β)-Methyl Megestrol Acetate (Megestrol Acetate EP Impurity G) …

Formula:

C₂₅H₃₄O₄

Color and Shape:

Neat

Molecular weight:

398.54

Ref: TR-M320245

1mg		383.00 €
10mg		2,618.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Hydroxy Pioglitazone-d4 (M-IV)

Controlled Product

CAS:1188263-49-1

Applications Hydroxy Pioglitazone-d4 (M-IV) is the labeled analogue of Hydroxy Pioglitazone (M-IV) (H952075), a metabolite …

Formula:

C₁₉H₄H₁₆N₂O₄S

Color and Shape:

Neat

Molecular weight:

376.46

Ref: TR-H952078

5mg		2,074.00 €
500µg		324.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-[(2E)-6,6-Dimethyl-2-hepten-4-yn-1-yl]-N-methyl-2-naphthalenemethanamine Hydrochloride

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N-[(2E)-6,6-Dimethyl-2-hepten-4-yn-1-yl]-N-methyl-2-naphthalenemethanamine Hydrochloride

Controlled Product

CAS:877265-30-0

Impurity Terbinafine EP Impurity C Stability Hygroscopic Applications N-[(2E)-6,6-Dimethyl-2-hepten-4-yn-1-yl]-N-methyl-2-naphthalenemethanamine Hydrochloride (Terbinafine EP Impurity C Not …

Formula:

C₂₁H₂₅N·ClH

Color and Shape:

White Solid

Molecular weight:

327.89

Ref: TR-D473210

50mg		326.00 €
500mg		2,046.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-Hydroxy Topotecan Dihydrochloride (Mixture of Diastereomers)

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5-Hydroxy Topotecan Dihydrochloride (Mixture of Diastereomers)

Controlled Product

CAS:504413-73-4

Stability Hygroscopic Applications Dihydrochloride Salt of 5-Hydroxy Topotecan, is the metabolite of Topotecan (T542500), which …

Formula:

C₂₃H₂₃N₃O₆

Color and Shape:

Neat

Molecular weight:

437.45

Ref: TR-H954455

1mg		260.00 €
10mg		1,747.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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3-Amino-1-propanol

CAS:156-87-6

Stability hygroscopic Applications 3-Amino-1-propanol is used in the synthesis of tetrathiafulvalenes displaying optical and electrochemical …

Formula:

C₃H₉NO

Color and Shape:

Colourless

Molecular weight:

75.11

Ref: TR-A628130

1g		110.00 €
10g		126.00 €
100g		241.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Acetyl Sulfadiazine

Controlled Product

CAS:127-74-2

Formula:

C₁₂H₁₂N₄O₃S

Color and Shape:

Off-White

Molecular weight:

292.31

Ref: TR-A187810

5mg		252.00 €
10mg		341.00 €
100mg		2,163.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Ethyl-N-(4-picolyl)atropamide

CAS:57322-50-6

Stability Light Sensitive Applications N-Ethyl-N-(4-picolyl)atropamide is a major impurity of Tropicamide (T892650), a medication used …

Formula:

C₁₇H₁₈N₂O

Color and Shape:

Neat

Molecular weight:

266.34

Ref: TR-E686515

25mg 380.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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1-Methyl Ethynyl Estradiol

Controlled Product

CAS:15071-66-6

Impurity Ethinylestradiol EP Impurity J Applications 1-Methyl Ethynyl Estradiol (Ethinylestradiol EP Impurity J) is an …

Formula:

C₂₁H₂₆O₂

Color and Shape:

Neat

Molecular weight:

310.43

Ref: TR-M304960

5mg		259.00 €
50mg		1,747.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Garamine Triacetate Salt (Gentamicin Impurity)

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Garamine Triacetate Salt (Gentamicin Impurity)

CAS:49751-51-1

Stability Hygroscopic Applications Gentamicin (G360600) impurity, which inhibits protein synthesis by binding to L6 protein …

Formula:

C₁₃H₂₇N₃O₆C₂H₄O₂

Color and Shape:

Neat

Molecular weight:

501.53

Ref: TR-G245300

1mg		347.00 €
10mg		2,202.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Tenamfetamine Hydrochloride

Controlled Product

CAS:6292-91-7

Applications A metabolite of MDMA. Entactogen; synthetic amphetamine derivative with stimulant and hallucinogenic properties.Controlled substance …

Formula:

C₁₀H₁₃NO₂·ClH

Color and Shape:

Beige

Molecular weight:

215.68

Ref: TR-M303965

5mg		173.00 €
10mg		232.00 €
250mg		2,391.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-[(1S)-2-Amino-2-oxo-1-(phenylmethyl)ethyl]-2-pyrazinecarboxamide

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N-[(1S)-2-Amino-2-oxo-1-(phenylmethyl)ethyl]-2-pyrazinecarboxamide

CAS:289472-80-6

Impurity Bortezomib USP Impurity B Applications N-[(1S)-2-Amino-2-oxo-1-(phenylmethyl)ethyl]-2-pyrazinecarboxamide is a metabolite of Bortezomib (B675700), a proteasome …

Formula:

C₁₄H₁₄N₄O₂

Color and Shape:

Neat

Molecular weight:

270.29