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
5-([1,1’-Biphenyl]-4-ylphenylmethyl)-1H-imidazole REF: TR-B397925CAS: 91679-37-7	- - -	222.00 €~2,180.00 €	Fri 25 Oct 24
N-(1-Hydroxy-2-(hydroxymethyl)-4-(4-octylphenyl)butan-2-yl)acetamide REF: TR-H942960CAS: 249289-10-9	- - -	186.00 €~559.00 €	Fri 25 Oct 24
Ferrous Bisglycinate REF: TR-F307800CAS: 20150-34-9	- - -	298.00 €~2,074.00 €	Fri 25 Oct 24
Rizatriptan N10-Oxide REF: TR-R545010CAS: 260435-42-5	- - -	576.00 €~2,068.00 €	Fri 25 Oct 24
1-Hydroxyoxycodone Hydrochloride REF: TR-H309675	- - -	397.00 €~1,728.00 €	Fri 25 Oct 24
Acyclovir Formacetal Dimer(>90%) REF: TR-A192435	>90%	331.00 €~2,145.00 €	Fri 25 Oct 24
Chloro-sibutramine hydrochloride REF: TR-C370150CAS: 84485-08-5	- - -	183.00 €~567.00 €	Fri 25 Oct 24
(S)-(-)-Nicotine-d3 REF: TR-N412454CAS: 54-11-5	- - -	329.00 €~1,063.00 €	Fri 25 Oct 24
rac Demethyl Citalopram-d3 Hydrochloride REF: TR-D230848CAS: 1189650-18-7	- - -	361.00 €~2,453.00 €	Fri 25 Oct 24
Montelukast Bis-sulfide (mixture of diastereomers) REF: TR-M567985CAS: 1242260-05-4	- - -	310.00 €~1,998.00 €	Fri 25 Oct 24
trans-Latanoprost REF: TR-L177300CAS: 913258-34-1	- - -	113.00 €~430.00 €	Fri 25 Oct 24
Hexyl Methanesulfonate REF: TR-H297155CAS: 16156-50-6	- - -	115.00 €~835.00 €	Fri 25 Oct 24
Chlorhexidine Digluconate Impurity K Dihydrochloride (>75%) REF: TR-C377670CAS: 1381962-77-1	>75%	599.00 €~4,090.00 €	Fri 25 Oct 24
6-Hydroxy-L-DOPA REF: TR-H941725CAS: 27244-64-0	- - -	349.00 €~2,321.00 €	Fri 25 Oct 24
Linezolid Dimer REF: TR-L466520CAS: 908143-04-4	- - -	292.00 €~1,960.00 €	Fri 25 Oct 24
N-Demethyl Roxithromycin REF: TR-D231265CAS: 118267-18-8	- - -	349.00 €~1,298.00 €	Fri 25 Oct 24
6-Hydroxy Warfarin REF: TR-H996120CAS: 17834-02-5	- - -	305.00 €~1,216.00 €	Fri 25 Oct 24
Rifampicin Quinone REF: TR-R508040CAS: 13983-13-6	- - -	316.00 €~2,010.00 €	Fri 25 Oct 24
Lovastatin REF: TR-L472225CAS: 75330-75-5	- - -	91.00 €~216.00 €	Fri 25 Oct 24
Valsartan Ethyl Ester REF: TR-V095780CAS: 1111177-30-0	- - -	299.00 €~1,938.00 €	Fri 25 Oct 24

5-([1,1’-Biphenyl]-4-ylphenylmethyl)-1H-imidazole

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5-([1,1’-Biphenyl]-4-ylphenylmethyl)-1H-imidazole

Controlled Product

CAS:91679-37-7

Impurity Bifonazole EP Impurity B Applications 5-([1,1’-Biphenyl]-4-ylphenylmethyl)-1H-Imidazole (Bifonazole EP Impurity B) is a compound derived …

Formula:

C₂₂H₁₈N₂

Color and Shape:

Neat

Molecular weight:

310.39

Ref: TR-B397925

5mg		222.00 €
10mg		341.00 €
100mg		2,180.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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N-(1-Hydroxy-2-(hydroxymethyl)-4-(4-octylphenyl)butan-2-yl)acetamide

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N-(1-Hydroxy-2-(hydroxymethyl)-4-(4-octylphenyl)butan-2-yl)acetamide

CAS:249289-10-9

Formula:

C₂₁H₃₅NO₃

Color and Shape:

Neat

Molecular weight:

349.51

Ref: TR-H942960

50mg		186.00 €
100mg		232.00 €
500mg		559.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Ferrous Bisglycinate

Controlled Product

CAS:20150-34-9

Stability Hygroscopic Applications Ferrous Bisglycinate is used in the fortification of infant formulations and foods. …

Formula:

C₂H₄NO₂·Fe

Color and Shape:

Neat

Molecular weight:

203.96

Ref: TR-F307800

1g		298.00 €
10g		2,074.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Rizatriptan N10-Oxide

Controlled Product

CAS:260435-42-5

Impurity Rizatriptan EP Impurity H Applications Rizatriptan N10-Oxide (Rizatriptan EP Impurity H) is a metabolite …

Formula:

C₁₅H₁₉N₅O

Color and Shape:

Off White

Molecular weight:

285.34

Ref: TR-R545010

5mg		576.00 €
10mg		1,037.00 €
25mg		2,068.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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1-Hydroxyoxycodone Hydrochloride

Controlled Product

Formula:

C₁₈H₂₁NO₅·HCl

Color and Shape:

Neat

Molecular weight:

367.82

Ref: TR-H309675

500µg		397.00 €
2500µg		1,728.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Acyclovir Formacetal Dimer(>90%)

Impurity Aciclovir EP Impurity R Applications Acyclovir Formacetal Dimer is a dimer impurity of Acyclovir …

Formula:

C₁₇H₂₂N₁₀O₆

Purity:

>90%

Color and Shape:

Neat

Molecular weight:

462.42

Ref: TR-A192435

25mg		2,145.00 €
2500µg		331.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Chloro-sibutramine hydrochloride

Controlled Product

CAS:84485-08-5

Formula:

C₁₇H₂₅Cl₂N·ClH

Color and Shape:

Neat

Molecular weight:

350.75

Ref: TR-C370150

5mg		183.00 €
10mg		299.00 €
25mg		567.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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(S)-(-)-Nicotine-d3

Controlled Product

CAS:54-11-5

Applications S)-(-)-Nicotine-d3 is an isotope labelled compound of (S)-(-)-Nicotine (N412450). (S)-(-)-Nicotine is a prototype nicotinic …

Formula:

C₁₀H₁₁D₃N₂

Color and Shape:

Neat

Molecular weight:

165.25

Ref: TR-N412454

5mg		329.00 €
10mg		586.00 €
25mg		1,063.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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rac Demethyl Citalopram-d3 Hydrochloride

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rac Demethyl Citalopram-d3 Hydrochloride

Controlled Product

CAS:1189650-18-7

Stability Very Very Hygroscopic Applications A labelled metabolite of Citalopram, an inhibitor of serotonin (5-HT) …

Formula:

C₁₉D₃H₁₆FN₂O·HCl

Color and Shape:

Beige

Molecular weight:

349.84

Ref: TR-D230848

1mg		361.00 €
10mg		2,453.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Montelukast Bis-sulfide (mixture of diastereomers)

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Montelukast Bis-sulfide (mixture of diastereomers)

Controlled Product

CAS:1242260-05-4

Applications Montelukast impurity.

Formula:

C₄₁H₄₆ClNO₅S₂

Color and Shape:

Neat

Molecular weight:

732.39

Ref: TR-M567985

10mg		310.00 €
100mg		1,998.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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trans-Latanoprost

CAS:913258-34-1

Impurity Latanoprost USP Related Compound A Stability Temperature Sensitive Applications Prostaglandin analog; prodrug of active …

Formula:

C₂₆H₄₀O₅

Color and Shape:

Colourless

Molecular weight:

432.59

Ref: TR-L177300

1mg		113.00 €
5mg		430.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Hexyl Methanesulfonate

CAS:16156-50-6

Applications Hexyl Methanesulfonate is a methanesulfpnate agent and potential anticancer agent that is can easily …

Formula:

C₇H₁₆O₃S

Color and Shape:

Neat

Molecular weight:

180.265

Ref: TR-H297155

1g		115.00 €
5g		261.00 €
25g		835.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Chlorhexidine Digluconate Impurity K Dihydrochloride (>75%)

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Chlorhexidine Digluconate Impurity K Dihydrochloride (>75%)

CAS:1381962-77-1

Stability Hygroscopic Applications Chlorhexidine Digluconate Impurity K was found in a study of the kinetics …

Formula:

C₂₂H₂₉Cl₂N₉O•HCl

Purity:

>75%

Color and Shape:

Neat

Molecular weight:

506.4323646

Ref: TR-C377670

5mg		4,090.00 €
500µg		599.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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6-Hydroxy-L-DOPA

Controlled Product

CAS:27244-64-0

Impurity Levodopa EP Impurity A; Levodopa USP Related Compound A Stability Hygroscopic Applications 6-Hydroxy-L-DOPA (Levodopa …

Formula:

C₉H₁₁NO₅

Color and Shape:

Brown To Black

Molecular weight:

213.19

Ref: TR-H941725

25mg		349.00 €
250mg		2,321.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Linezolid Dimer

CAS:908143-04-4

Applications Linezolid Dimer is an impurity of the antibacterial agent Linezolid (L466500).

Formula:

C₃₀H₃₅F₂N₅O₇

Color and Shape:

Neat

Molecular weight:

615.62

Ref: TR-L466520

25mg		1,960.00 €
2500µg		292.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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N-Demethyl Roxithromycin

CAS:118267-18-8

Applications A metabolite of Roxithromycin (R700850). References Lindstrom, T., et al.: Antimicrob. Agents Chemother., 37, …

Formula:

C₄₀H₇₄N₂O₁₅

Color and Shape:

White To Off-White

Molecular weight:

823.02

Ref: TR-D231265

5mg		349.00 €
10mg		591.00 €
25mg		1,298.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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6-Hydroxy Warfarin

CAS:17834-02-5

Formula:

C₁₉H₁₆O₅

Color and Shape:

White

Molecular weight:

324.33

Ref: TR-H996120

5mg		305.00 €
10mg		527.00 €
25mg		1,216.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Rifampicin Quinone

Controlled Product

CAS:13983-13-6

Stability Light Sensitive Applications Rifampicin Quinone is a metabolite of Rifampicin (R508000). Rifampicin Quinone acts …

Formula:

C₄₃H₅₆N₄O₁₂

Color and Shape:

Neat

Molecular weight:

820.92

Ref: TR-R508040

50mg		316.00 €
500mg		2,010.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Lovastatin

CAS:75330-75-5

Impurity Simvastatin EP Impurity E Applications Lovastatin (Simvastatin EP Impurity E) is an antihypercholesterolemic agent. …

Formula:

C₂₄H₃₆O₅

Color and Shape:

White To Light Yellow

Molecular weight:

404.54

Ref: TR-L472225

1g		216.00 €
5mg		91.00 €
50mg		132.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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Valsartan Ethyl Ester

Controlled Product

CAS:1111177-30-0

Applications Valsartan Ethyl Ester is an impurity of Valsartan (V095750), a nonpeptide angiotensin II AT1-receptor …

Formula:

C₂₆H₃₃N₅O₃

Color and Shape:

White To Light Beige

Molecular weight:

463.57

Ref: TR-V095780

50mg		299.00 €
500mg		1,938.00 €

Estimated delivery in United States, on Friday 25 Oct 2024

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