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
Vardenafil Oxopiperazine (Impurity) REF: TR-V098030CAS: 448184-58-5	- - -	192.00 €~2,018.00 €	Mon 28 Oct 24
8-Chloro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine REF: TR-C377590CAS: 117811-20-8	- - -	320.00 €~2,084.00 €	Mon 28 Oct 24
N-Nitroso-N-methyl-4-aminobutyric Acid-d3 REF: TR-N529002CAS: 1184996-41-5	- - -	346.00 €~2,226.00 €	Mon 28 Oct 24
6b-Hydroxy Ethynyl Estradiol REF: TR-H942010CAS: 56324-28-8	- - -	468.00 €~1,515.00 €	Mon 28 Oct 24
5-Chloro-2-(methylamino)benzophenone REF: TR-C369020CAS: 1022-13-5	- - -	98.00 €~463.00 €	Mon 28 Oct 24
Dehydro Norketamine-d4 (>90%) REF: TR-D229952CAS: 1246816-68-1	>90%	422.00 €~1,493.00 €	Mon 28 Oct 24
4’-Demethylpodophyllotoxin REF: TR-D231218CAS: 40505-27-9	- - -	207.00 €	Mon 28 Oct 24
trans-Loperamide N-Oxide REF: TR-L469460CAS: 106900-12-3	- - -	127.00 €~858.00 €	Mon 28 Oct 24
N-Desmethyl Diltiazem Hydrochloride REF: TR-D291610CAS: 130606-60-9	- - -	209.00 €~1,278.00 €	Mon 28 Oct 24
Lopinavir Metabolite M-1 REF: TR-L469485CAS: 192725-39-6	- - -	307.00 €~1,225.00 €	Mon 28 Oct 24
Hydroxy Tolbutamide-d9 REF: TR-H969852CAS: 1185112-19-9	- - -	283.00 €~1,846.00 €	Mon 28 Oct 24
Isomethadone Hydrochloride (>90%) REF: TR-I821270CAS: 5341-49-1	>90%	596.00 €~2,175.00 €	Mon 28 Oct 24
16a-Hydroxy Estrone REF: TR-H941900CAS: 566-76-7	- - -	192.00 €~528.00 €	Mon 28 Oct 24
4-Hydroxy Ethynyl Estradiol REF: TR-H941965CAS: 50394-90-6	- - -	276.00 €	Mon 28 Oct 24
9-Hydroxyfluorene-d9 REF: TR-H942491CAS: 1689-64-1	- - -	256.00 €~1,707.00 €	Mon 28 Oct 24
RP 48497 (Eszopiclone Impurity C) REF: TR-R700900CAS: 148891-53-6	- - -	260.00 €~1,607.00 €	Mon 28 Oct 24
Homogentisic Acid-13C6 REF: TR-H593402CAS: 1216468-48-2	- - -	347.00 €~2,371.00 €	Mon 28 Oct 24
Risperidone E-Oxime REF: TR-R525015CAS: 691007-09-7	- - -	317.00 €~966.00 €	Mon 28 Oct 24
(S,R,R,S)-Nebivolol REF: TR-N387910CAS: 119365-23-0	- - -	296.00 €~2,170.00 €	Mon 28 Oct 24
Vardenafil Acetyl Analogue REF: TR-V098015CAS: 1261351-28-3	- - -	269.00 €~1,830.00 €	Mon 28 Oct 24

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Vardenafil Oxopiperazine (Impurity)

Controlled Product

CAS:448184-58-5

Stability Light Sensitive Applications Vardenafil Oxopiperazine is a derivative of Vardenafil (V098001-dihydrochloride salt), a selective …

Formula:

C₂₁H₂₆N₆O₅S

Color and Shape:

Neat

Molecular weight:

474.53

Ref: TR-V098030

10mg		308.00 €
100mg		2,018.00 €
2500µg		192.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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8-Chloro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine

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8-Chloro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine

Controlled Product

CAS:117811-20-8

Applications 8-Chloro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridineb is an impurity of Desloratadine (D290250). It was used to validate a stability-indicating …

Formula:

C₁₉H₁₇ClN₂

Color and Shape:

Neat

Molecular weight:

308.80

Ref: TR-C377590

25mg		2,084.00 €
2500µg		320.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Nitroso-N-methyl-4-aminobutyric Acid-d3

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N-Nitroso-N-methyl-4-aminobutyric Acid-d3

Controlled Product

CAS:1184996-41-5

Applications This N-nitrosamino acid has been isolated and identified in various types of tobacco, inlcluding …

Formula:

C₅H₃H₉N₂O

Color and Shape:

Off-White To Yellow

Molecular weight:

119.18

Ref: TR-N529002

25mg		2,226.00 €
2500µg		346.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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6b-Hydroxy Ethynyl Estradiol

Controlled Product

CAS:56324-28-8

Impurity Ethinylestradiol EP Impurity F Applications Ethynyl Estradiol (E685100) impurity F. Not a dangerous good …

Formula:

C₂₀H₂₄O₃

Color and Shape:

White

Molecular weight:

312.40

Ref: TR-H942010

5mg		468.00 €
10mg		836.00 €
25mg		1,515.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-Chloro-2-(methylamino)benzophenone

CAS:1022-13-5

Applications 5-Chloro-2-(methylamino)benzophenone is an impurity of 1,4- Temazepam (T017200) as well as a decompoition product …

Formula:

C₁₄H₁₂ClNO

Color and Shape:

Light Yellow To Yellow

Molecular weight:

245.70

Ref: TR-C369020

1g		98.00 €
10g		123.00 €
100g		463.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Dehydro Norketamine-d4 (>90%)

Controlled Product

CAS:1246816-68-1

Applications A labelled metabolite of Ketamine (K165300). References Sullivan, H., et al.: J. Med. Chem., …

Formula:

C₁₂H₈D₄ClNO

Purity:

>90%

Color and Shape:

Neat

Molecular weight:

225.75

Ref: TR-D229952

5mg 1,493.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4’-Demethylpodophyllotoxin

Controlled Product

CAS:40505-27-9

Applications 4’-Demethylpodophyllotoxin is a lignan studied for its content in different parts of Sinopodophyllum hexandrum. …

Formula:

C₂₁H₂₀O₈

Color and Shape:

Neat

Molecular weight:

400.38

Ref: TR-D231218

100mg 207.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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trans-Loperamide N-Oxide

Controlled Product

CAS:106900-12-3

Stability Hygroscopic Applications Loperamide oxide (LOPOX) is a prodrug of Loperamide (LOP). It is concluded …

Formula:

C₂₉H₃₃ClN₂O₃

Color and Shape:

Off-White

Molecular weight:

493.04

Ref: TR-L469460

5mg		127.00 €
25mg		313.00 €
100mg		858.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Desmethyl Diltiazem Hydrochloride

Controlled Product

CAS:130606-60-9

Impurity Dilitiazem EP Impurity D Stability Hygroscopic Applications N-Desmethyl Diltiazem Hydrochloride (Dilitiazem EP Impurity D) …

Formula:

C₂₁H₂₄N₂O₄S·ClH

Color and Shape:

White To Off-White

Molecular weight:

436.95

Ref: TR-D291610

5mg		209.00 €
10mg		317.00 €
50mg		1,278.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Lopinavir Metabolite M-1

Controlled Product

CAS:192725-39-6

Applications A major metabolite of Lopinavir (L469480) . It is a COVID19-related research product. References …

Formula:

C₃₇H₄₆N₄O₆

Color and Shape:

Neat

Molecular weight:

642.78

Ref: TR-L469485

1mg		307.00 €
5mg		1,225.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Hydroxy Tolbutamide-d9

Controlled Product

CAS:1185112-19-9

Formula:

C₁₂H₉H₉N₂O₄S

Color and Shape:

Off White

Molecular weight:

295.40

Ref: TR-H969852

1mg		283.00 €
10mg		1,846.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Isomethadone Hydrochloride (>90%)

Controlled Product

CAS:5341-49-1

Applications A positional isomer of the synthetic opioid Methadone (M225865). Controlled Substance. References Beckett, A.H. …

Formula:

C₂₁H₂₇NO·ClH

Purity:

>90%

Color and Shape:

Light Brown

Molecular weight:

345.91

Ref: TR-I821270

10mg		596.00 €
25mg		1,330.00 €
50mg		2,175.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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16a-Hydroxy Estrone

CAS:566-76-7

Impurity Estriol EP Impurity H Applications 16α-Hydroxy Estrone (Estriol EP Impurity H) is a major …

Formula:

C₁₈H₂₂O₃

Color and Shape:

White To Beige

Molecular weight:

286.37

Ref: TR-H941900

1mg		192.00 €
5mg		528.00 €
2500µg		268.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4-Hydroxy Ethynyl Estradiol

CAS:50394-90-6

Stability Hygroscopic, Light Sensitive Applications A metabolite of 17α-Ethynylestradiol. References Buchthal, J., et al.: Eur. …

Formula:

C₂₀H₂₄O₃

Color and Shape:

Neat

Molecular weight:

312.40

Ref: TR-H941965

1mg 276.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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9-Hydroxyfluorene-d9

Controlled Product

CAS:1689-64-1

Formula:

C₁₃D₉HO

Color and Shape:

Off-White

Molecular weight:

191.27

Ref: TR-H942491

1mg		256.00 €
5mg		979.00 €
10mg		1,707.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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RP 48497 (Eszopiclone Impurity C)

Controlled Product

CAS:148891-53-6

Applications Eszopiclone Impurity C. References Vire, J.C., et al.: Talanta, 40, 313 (1993), Sha, Yu., …

Formula:

C₁₁H₇ClN₄O

Color and Shape:

Neat

Molecular weight:

246.65

Ref: TR-R700900

10mg		260.00 €
25mg		503.00 €
100mg		1,607.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Homogentisic Acid-13C6

CAS:1216468-48-2

Applications Labelled Homogentisic acid. An intermediate in the metabolism of tyrosine and phenylalanine. Occurs in …

Formula:

C₂₁₃C₆H₈O₄

Color and Shape:

Neat

Molecular weight:

174.1

Ref: TR-H593402

1mg		347.00 €
10mg		2,371.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Risperidone E-Oxime

Controlled Product

CAS:691007-09-7

Formula:

C₂₃H₂₈F₂N₄O₂

Color and Shape:

Neat

Molecular weight:

430.49

Ref: TR-R525015

5mg		536.00 €
10mg		966.00 €
2500µg		317.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(S,R,R,S)-Nebivolol

Controlled Product

CAS:119365-23-0

Applications The S,R,R,S-enantiomer of Nebivolol (N387900), a metabolite in vitro which acts as a β-adrenergic …

Formula:

C₂₂H₂₅F₂NO₄

Color and Shape:

Off White Solid

Molecular weight:

405.44

Ref: TR-N387910

1mg		296.00 €
5mg		1,249.00 €
10mg		2,170.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Vardenafil Acetyl Analogue

CAS:1261351-28-3

Applications Vardenafil analog.

Formula:

C₂₅H₃₄N₆O₃

Color and Shape:

Neat

Molecular weight:

466.58

Ref: TR-V098015

5mg		269.00 €
50mg		1,830.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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