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
N10-Monodesmethyl Rizatriptan REF: TR-M539500CAS: 144034-84-4	- - -	227.00 €~1,535.00 €	Fri 25 Oct 24
N-Demethyl Rifampicin-d8 REF: TR-D231252CAS: 13292-45-0	- - -	263.00 €~1,753.00 €	Fri 25 Oct 24
Demethyl Benzydamine Hydrochloride REF: TR-D230810CAS: 39860-97-4	- - -	315.00 €~1,056.00 €	Fri 25 Oct 24
Ibuprofen Ethyl Ester REF: TR-I140080CAS: 41283-72-1	- - -	228.00 €~1,576.00 €	Fri 25 Oct 24
Beta-Nicotinamide-d4 Mononucleotide (d4-major) REF: TR-N407768CAS: 1094-61-7	- - -	520.00 €~3,578.00 €	Fri 25 Oct 24
Beta-Hydroxyfentanyl Hydrochloride REF: TR-H942400CAS: 1473-95-6	- - -	266.00 €~1,737.00 €	Fri 25 Oct 24
7-Dehydroxy Buprenorphine(Buprenorphine Impurity F) REF: TR-D230635CAS: 97203-04-8	- - -	373.00 €~2,488.00 €	Fri 25 Oct 24
Roxithromycin-d7 REF: TR-R700852CAS: 80214-83-1	- - -	353.00 €~2,197.00 €	Fri 25 Oct 24
Hydroxymethoxy-N-desmethyl Toremifene (>80%) REF: TR-H972940	>80%	413.00 €~2,846.00 €	Fri 25 Oct 24
N-(2-Pyridinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide(Flecainide Impurity) REF: TR-P991690CAS: 57415-36-8	- - -	315.00 €~2,079.00 €	Fri 25 Oct 24
2-Pyridylacetic Acid-d6 Hydrochloride (d5 Major) REF: TR-P991752CAS: 1329799-67-8	- - -	315.00 €~2,074.00 €	Fri 25 Oct 24
Rosuvastatin Ethyl Ester REF: TR-R700723CAS: 851443-04-4	- - -	101.00 €~241.00 €	Fri 25 Oct 24
Lumiflavin-3-acetic Acid (>85%) REF: TR-L473910CAS: 20227-26-3	>85%	315.00 €	Fri 25 Oct 24
2,4-Dihydroxybenzophenone-d5 REF: TR-D451783CAS: 91586-06-0	- - -	119.00 €~623.00 €	Fri 25 Oct 24
Fluocinolone Acetonide-21-aldehyde REF: TR-F455810CAS: 13242-30-3	- - -	345.00 €~2,360.00 €	Fri 25 Oct 24
25-Hydroxyvitamin D3 3-Hemisuccinate REF: TR-H995855CAS: 69511-19-9	- - -	320.00 €~5,518.00 €	Fri 25 Oct 24
3-Hydroxy Donepezil (Donepezil Impurity) REF: TR-H941745CAS: 2097683-67-3	- - -	321.00 €~2,120.00 €	Fri 25 Oct 24
Histamine-a,a,b,b-d4 Dihydrochloride REF: TR-H436502CAS: 344299-48-5	- - -	299.00 €~1,113.00 €	Fri 25 Oct 24
rac 5,6-Dehydro Pregabalin REF: TR-D230055CAS: 1136478-30-2	- - -	346.00 €~2,310.00 €	Fri 25 Oct 24
[R-(R,R)]-(1,2-Dihydroxypropyl)phosphonic Acid REF: TR-D454455CAS: 132125-60-1	- - -	412.00 €~1,357.00 €	Fri 25 Oct 24

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N10-Monodesmethyl Rizatriptan

Controlled Product

CAS:144034-84-4

Impurity Rizatriptan EP Impurity I Applications N10-Monodesmethyl Rizatriptan (Rizatriptan EP Impurity I) is a metabolite …

Formula:

C₁₄H₁₇N₅

Color and Shape:

Neat

Molecular weight:

255.32

Ref: TR-M539500

1mg		227.00 €
10mg		1,535.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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N-Demethyl Rifampicin-d8

Controlled Product

CAS:13292-45-0

Stability Light Sensitive Applications Labelled N-Demethyl Rifampicin (D231250). N-Demethyl Rifampicin is a metabolite of Rifampicin …

Formula:

C₄₂H₄₈D₈N₄O₁₂

Color and Shape:

Red Crystalline Powder

Molecular weight:

816.96

Ref: TR-D231252

1mg		263.00 €
10mg		1,753.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Demethyl Benzydamine Hydrochloride

Controlled Product

CAS:39860-97-4

Applications A metabolite of Benzydamine (B209950). References Kataoka, S., et al.: Chem. Pharma. Bull., 21, …

Formula:

C₁₈H₂₂ClN₃O

Color and Shape:

Off White Solid

Molecular weight:

331.84

Ref: TR-D230810

5mg		581.00 €
10mg		1,056.00 €
2500µg		315.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Ibuprofen Ethyl Ester

Controlled Product

CAS:41283-72-1

Applications Ibuprofen Ethyl Ester is a derivative of Ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) that …

Formula:

C₁₅H₂₂O₂

Color and Shape:

Neat

Molecular weight:

234.33

Ref: TR-I140080

1g		228.00 €
10g		1,576.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Beta-Nicotinamide-d4 Mononucleotide (d4-major)

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Beta-Nicotinamide-d4 Mononucleotide (d4-major)

Controlled Product

CAS:1094-61-7

Formula:

C₁₁D₄H₁₁N₂O₈P

Color and Shape:

White To Off-White

Molecular weight:

338.244

Ref: TR-N407768

1mg		520.00 €
10mg		3,578.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Beta-Hydroxyfentanyl Hydrochloride

Controlled Product

CAS:1473-95-6

Formula:

C₂₂H₂₈N₂O₂·ClH

Color and Shape:

Neat

Molecular weight:

388.93

Ref: TR-H942400

1mg		266.00 €
5mg		1,032.00 €
10mg		1,737.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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7-Dehydroxy Buprenorphine(Buprenorphine Impurity F)

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7-Dehydroxy Buprenorphine(Buprenorphine Impurity F)

Controlled Product

CAS:97203-04-8

Formula:

C₂₉H₃₉NO₃

Color and Shape:

White To Off-White

Molecular weight:

449.62

Ref: TR-D230635

10mg		1,278.00 €
25mg		2,488.00 €
2500µg		373.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Roxithromycin-d7

Controlled Product

CAS:80214-83-1

Applications Semisynthetic labelled Erythromycin derivative. Antibacterial. References Jones, R.N., et al.: Antimicrob. Agents Chemother., 24, …

Formula:

C₄₁H₆₉D₇N₂O₁₅

Color and Shape:

White To Light Yellow

Molecular weight:

844.09

Ref: TR-R700852

1mg		353.00 €
10mg		2,197.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Hydroxymethoxy-N-desmethyl Toremifene (>80%)

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Hydroxymethoxy-N-desmethyl Toremifene (>80%)

Formula:

C₂₆H₂₈ClNO₃

Purity:

>80%

Color and Shape:

Neat

Molecular weight:

437.96

Ref: TR-H972940

1mg		803.00 €
5mg		2,846.00 €
500µg		413.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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N-(2-Pyridinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide(Flecainide Impurity)

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N-(2-Pyridinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide(Flecainide Impurity)

Controlled Product

CAS:57415-36-8

Impurity Flecainide Impurity Applications Flecainide impurity. A novel intermediate for the preparation of Flecainide. References …

Formula:

C₁₇H₁₄F₆N₂O₃

Color and Shape:

Neat

Molecular weight:

408.3

Ref: TR-P991690

25mg		2,079.00 €
2500µg		315.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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2-Pyridylacetic Acid-d6 Hydrochloride (d5 Major)

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2-Pyridylacetic Acid-d6 Hydrochloride (d5 Major)

Controlled Product

CAS:1329799-67-8

Stability Unstable in Solution, Hygroscopic Applications Used in nucleophilic substitution. References Genicot, C., et al.: …

Formula:

C₇H₆HNO₂·ClH

Color and Shape:

Neat

Molecular weight:

179.63

Ref: TR-P991752

1mg		315.00 €
10mg		2,074.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Rosuvastatin Ethyl Ester

CAS:851443-04-4

Applications Rosuvastatin ethyl ester (CAS# 851443-04-4) is an intermediate formed during the synthetic preparation of …

Formula:

C₂₄H₃₂FN₃O₆S

Color and Shape:

Off-White To Light Beige

Molecular weight:

509.59

Ref: TR-R700723

1g		241.00 €
100mg		101.00 €
500mg		157.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Lumiflavin-3-acetic Acid (>85%)

Controlled Product

CAS:20227-26-3

Formula:

C₁₅H₁₄N₄O₄

Purity:

>85%

Color and Shape:

Neat

Molecular weight:

314.30

Ref: TR-L473910

2500µg 315.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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2,4-Dihydroxybenzophenone-d5

Controlled Product

CAS:91586-06-0

Applications 2,4-Dihydroxybenzophenone-d5 is deuterium labelled of 2,4-Dihydroxybenzophenone (D451780), which is a metabolite of Benzophenone (B204980). …

Formula:

C₁₃H₅D₅O₃

Color and Shape:

Off-White To Light Yellow

Molecular weight:

219.25