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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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BrandProduct dataPurityPrice rangeEstimated delivery
TRC logo
Acetaminotadalafil
REF: TR-A161250CAS: 1446144-71-3 		- - -365.00 €~2,496.00 €Tue 04 Feb 25
TRC logo
pre-Calcitriol PTAD Adduct (Mixture of Diastereomers)
REF: TR-C144520CAS: 86307-44-0 		- - -468.00 €~2,419.00 €Tue 04 Feb 25
TRC logo
(+)-Noradrenaline-d5 Bitartrate
REF: TR-N661028CAS: 636-88-4 		- - -287.00 €~1,904.00 €Tue 04 Feb 25
TRC logo
9-Propenyladenine
REF: TR-P768800CAS: 1446486-33-4 		- - -380.00 €~1,302.00 €Tue 04 Feb 25
TRC logo
rac Atomoxetine Hydrochloride
REF: TR-A791390CAS: 82857-40-7 		- - -267.00 €Tue 04 Feb 25
TRC logo
6-Demethyl Papaverine-d3
REF: TR-D231202CAS: 1246815-25-7 		- - -513.00 €~3,472.00 €Tue 04 Feb 25
TRC logo
delta9,11-Eplerenone
REF: TR-E588765CAS: 95716-70-4 		- - -285.00 €Tue 04 Feb 25
TRC logo
Demethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid
REF: TR-D231260CAS: 1353018-10-6 		- - -347.00 €~2,308.00 €Tue 04 Feb 25
TRC logo
Des(methylpiperazinyl) Imatinib Dimer Piperazinium Chloride (90%)
REF: TR-D231455CAS: 1821122-73-9 		90%349.00 €~2,382.00 €Tue 04 Feb 25
TRC logo
Atomoxetine-d3 Hydrochloride
REF: TR-A791402CAS: 1217776-38-9 		- - -298.00 €~2,664.00 €Tue 04 Feb 25
TRC logo
Emtricitabine Carboxylic Acid
REF: TR-E525035CAS: 1238210-10-0 		- - -356.00 €~2,341.00 €Tue 04 Feb 25
TRC logo
(11beta,16beta)-21-(Acetyloxy)-9-chloro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione
REF: TR-A777130CAS: 4735-64-2 		- - -207.00 €~1,589.00 €Tue 04 Feb 25
TRC logo
Atorvastatin Cyclic (Fluorophenyl) Sodium Salt Impurity
REF: TR-A791820CAS: 1315629-79-8 		- - -636.00 €~4,339.00 €Tue 04 Feb 25
TRC logo
8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione
REF: TR-B680510CAS: 853029-57-9 		- - -126.00 €~619.00 €Tue 04 Feb 25
TRC logo
Desacetyl Rifaximin-d6 (major)
REF: TR-D281892CAS: 80621-88-1 		- - -125.00 €~5,331.00 €Tue 04 Feb 25
TRC logo
N-Nitrosomorpholine
REF: TR-N529985CAS: 59-89-2 		- - -360.00 €~1,123.00 €Tue 04 Feb 25
TRC logo
Eplerenone Hydroxyacid Potassium Salt
REF: TR-E588780CAS: 95716-98-6 		- - -1,577.00 €~4,604.00 €Tue 04 Feb 25
TRC logo
Desacetyllanatoside C
REF: TR-D288320CAS: 17598-65-1 		- - -239.00 €~1,781.00 €Tue 04 Feb 25
TRC logo
Desalkyl Ebastine
REF: TR-D288770CAS: 58258-01-8 		- - -252.00 €~1,319.00 €Tue 04 Feb 25
TRC logo
Deoxycholic Acid
REF: TR-D232645CAS: 83-44-3 		- - -94.00 €~145.00 €Tue 04 Feb 25
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Acetaminotadalafil
TRC logo
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Acetaminotadalafil

Controlled Product
CAS:1446144-71-3
Applications Acetaminotadalafil, is a new analogue of Tadalafil (T004500), used for the treatment of erectile …
Formula:
C23H20N4O5
Color and Shape:
Neat
Molecular weight:
432.43

Ref: TR-A161250

25mg2,496.00 €
2500µg365.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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pre-Calcitriol PTAD Adduct (Mixture of Diastereomers)
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pre-Calcitriol PTAD Adduct (Mixture of Diastereomers)

Controlled Product
CAS:86307-44-0
Applications Calcitriol (C144500) impurity. 1α-Hydroxyvitamin D and 1α-hydroxyprevitamin D compounds were prepared in multistep syntheses …
Formula:
C35H49N3O5
Color and Shape:
White To Off-White
Molecular weight:
591.78

Ref: TR-C144520

1mg468.00 €
10mg2,419.00 €
2500µg998.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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(+)-Noradrenaline-d5 Bitartrate
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(+)-Noradrenaline-d5 Bitartrate

Controlled Product
CAS:636-88-4
Stability Hygroscopic Applications (+)-Noradrenaline-d5 Bitartrate is a labeled analogue of (+)-Noradrenaline Bitartrate (N661025), an agonist …
Formula:
C12H12D5NO9
Color and Shape:
Neat
Molecular weight:
324.3

Ref: TR-N661028

5mg1,904.00 €
500µg287.00 €
2500µg1,219.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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9-Propenyladenine
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9-Propenyladenine

CAS:1446486-33-4
Impurity Tenofovir Disoproxil USP Related Compound B Applications 9-Propenyladenine (Tenofovir Disoproxil USP Related Compound B) …
Formula:
C8H9N5
Color and Shape:
White To Light Yellow
Molecular weight:
175.19

Ref: TR-P768800

25mg380.00 €
50mg679.00 €
100mg1,302.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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rac Atomoxetine Hydrochloride
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rac Atomoxetine Hydrochloride

Controlled Product
CAS:82857-40-7
Applications A compound active at novel site on receptor-operated calcium channels useful for treatment of …
Formula:
C17H21NO·ClH
Color and Shape:
Neat
Molecular weight:
291.82

Ref: TR-A791390

5mg267.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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6-Demethyl Papaverine-d3
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6-Demethyl Papaverine-d3

Controlled Product
CAS:1246815-25-7
Applications A labelled metabolite of Papaverine (P190500). Not a dangerous good if item is equal …
Formula:
C19H16D3NO4
Color and Shape:
Neat
Molecular weight:
328.38

Ref: TR-D231202

1mg513.00 €
10mg3,472.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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delta9,11-Eplerenone
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delta9,11-Eplerenone

CAS:95716-70-4
Formula:
C24H30O5
Color and Shape:
Neat
Molecular weight:
398.49

Ref: TR-E588765

100mg285.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Demethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid
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Demethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid

Controlled Product
CAS:1353018-10-6
Formula:
C17H20N4O4S2
Color and Shape:
Off White Solid
Molecular weight:
408.50

Ref: TR-D231260

25mg347.00 €
250mg2,308.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Des(methylpiperazinyl) Imatinib Dimer Piperazinium Chloride (90%)
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Des(methylpiperazinyl) Imatinib Dimer Piperazinium Chloride (90%)

CAS:1821122-73-9
Applications Des(methylpiperazinyl) Imatinib Dimer Piperazinium Chloride is an impurity of Imatinib Mesylate (G407000), a tyrosine …
Formula:
C53H51ClN12O2
Purity:
90%
Color and Shape:
Neat
Molecular weight:
923.5

Ref: TR-D231455

5mg349.00 €
50mg2,382.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Atomoxetine-d3 Hydrochloride
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Atomoxetine-d3 Hydrochloride

Controlled Product
CAS:1217776-38-9
Formula:
C17H19D3ClNO
Color and Shape:
Neat
Molecular weight:
294.83

Ref: TR-A791402

1mg298.00 €
10mg2,032.00 €
25mg2,664.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Emtricitabine Carboxylic Acid
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Emtricitabine Carboxylic Acid

Controlled Product
CAS:1238210-10-0
Impurity Emtricitabine Carboxylic Acid Impurity Applications Emtricitabine Carboxylic Acid is an impurity of the antiviral …
Formula:
C8H8FN3O4S
Color and Shape:
Neat
Molecular weight:
261.23

Ref: TR-E525035

10mg356.00 €
100mg2,341.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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(11beta,16beta)-21-(Acetyloxy)-9-chloro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione
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(11beta,16beta)-21-(Acetyloxy)-9-chloro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

Controlled Product
CAS:4735-64-2
Applications (11β,16β)-21-(Acetyloxy)-9-chloro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione is used in the method of administering medicinal aerosol formulation. References Adjei, A. …
Formula:
C24H31ClO6
Color and Shape:
Neat
Molecular weight:
450.952

Ref: TR-A777130

50mg207.00 €
500mg1,556.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Atorvastatin Cyclic (Fluorophenyl) Sodium Salt Impurity
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Atorvastatin Cyclic (Fluorophenyl) Sodium Salt Impurity

CAS:1315629-79-8
Stability Hygroscopic Applications A photodegadation product of Atorvastatin (a cyclic impurity of Atorvastatin). References Roger, …
Formula:
C33H34FN2O7·Na
Color and Shape:
Neat
Molecular weight:
612.62

Ref: TR-A791820

1mg636.00 €
5mg2,331.00 €
10mg4,339.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-di…
TRC logo
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8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione

CAS:853029-57-9
Applications 8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione is an intermediate used to prepare selective inhibitors of dipeptidyl peptidase 4 (DPP4) …
Formula:
C20H17BrN6O2
Color and Shape:
Neat
Molecular weight:
453.29

Ref: TR-B680510

1g126.00 €
10g619.00 €
2500mg247.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Desacetyl Rifaximin-d6 (major)
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Desacetyl Rifaximin-d6 (major)

Controlled Product
CAS:80621-88-1
Formula:
C41D6H45N3O10
Color and Shape:
Neat
Molecular weight:
751.89

Ref: TR-D281892

1mg125.00 €
100mg965.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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N-Nitrosomorpholine
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N-Nitrosomorpholine

Controlled Product
CAS:59-89-2
Applications N-Nitrosomorpholine, a frequently used genotoxic model carcinogen. Toxicogenomic analysis of N-Nitrosomorpholine induced changes in …
Formula:
C4H8N2O2
Color and Shape:
Yellow
Molecular weight:
116.12

Ref: TR-N529985

1g360.00 €
10g1,123.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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discount label
Eplerenone Hydroxyacid Potassium Salt
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Eplerenone Hydroxyacid Potassium Salt

Controlled Product
CAS:95716-98-6
Applications A metabolite of Eplerenone. Used in combination therapy for treatment of cardiovascular disorders. References …
Formula:
C24H31O7·K
Color and Shape:
Off-White To Light Yellow
Molecular weight:
470.60

Ref: TR-E588780

5mg1,577.00 €
10mg2,581.00 €
25mg4,604.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Desacetyllanatoside C
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Desacetyllanatoside C

Controlled Product
CAS:17598-65-1
Applications Desacetyllanatoside C is a derivative of Lanatoside C (L173800), glycosides isolated from various species …
Formula:
C47H74O19
Color and Shape:
Neat
Molecular weight:
943.08

Ref: TR-D288320

5mg239.00 €
25mg685.00 €
100mg1,781.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Desalkyl Ebastine
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Desalkyl Ebastine

Controlled Product
CAS:58258-01-8
Formula:
C18H21NO
Color and Shape:
Neat
Molecular weight:
267.37

Ref: TR-D288770

5mg252.00 €
10mg336.00 €
50mg1,319.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
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Deoxycholic Acid
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Deoxycholic Acid

CAS:83-44-3
Impurity Ursodeoxycholic Acid EP Impurity E Applications Deoxycholic Acid (Ursodeoxycholic Acid EP Impurity E) is …
Formula:
C24H40O4
Color and Shape:
Off-White To Light Yellow
Molecular weight:
392.57

Ref: TR-D232645

5g94.00 €
10g119.00 €
25g145.00 €
Estimated delivery in United States, on Tuesday 4 Feb 2025
+ info
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