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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
1,1-Dimethyl-1-propanol-d6
REF: TR-D470832CAS: 75295-95-3 		- - -264.00 €~1,754.00 €Tue 29 Oct 24
TRC logo
(S)-N-[4-[[((S)-2-Amino-6,7,8,9-tetrahydro-8-methyl-4,9-dioxo-4H-pyrazino[1,2-a]-1,3,5-triazin-7-yl)methyl]amino]benzoyl]-L-glutamic Acid
REF: TR-A629750		- - -331.00 €~2,145.00 €Tue 29 Oct 24
TRC logo
Belotecan Hydrochloride
REF: TR-B131300CAS: 213819-48-8 		- - -224.00 €~1,620.00 €Tue 29 Oct 24
TRC logo
(2R,3S)-N-Benzoyl-3-phenyl Isoserine Methyl Ester
REF: TR-B208560CAS: 32981-85-4 		- - -220.00 €~833.00 €Tue 29 Oct 24
TRC logo
Acetone 2,4-Dinitrophenylhydrazone-13C3
REF: TR-A163853CAS: 395075-27-1 		- - -276.00 €~1,112.00 €Tue 29 Oct 24
TRC logo
N,N-Dimethylmelamine Metformin Impurity C
REF: TR-D474600CAS: 1985-46-2 		- - -252.00 €~611.00 €Tue 29 Oct 24
TRC logo
Diclofenac Acyl-b-D-glucuronide Allyl Ester
REF: TR-D436485CAS: 698358-10-0 		- - -248.00 €~1,637.00 €Tue 29 Oct 24
TRC logo
21-Chloro-9-fluoro-11b,17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione 17-Propionate
REF: TR-C366320CAS: 25122-52-5 		- - -329.00 €~2,148.00 €Tue 29 Oct 24
TRC logo
Taurolithocholic Acid-d5 Sodium Salt (Major)
REF: TR-T009102CAS: 1265476-97-8 		- - -341.00 €~2,195.00 €Tue 29 Oct 24
TRC logo
Erythromycin A 6,9-Imino Ether
REF: TR-E650015CAS: 99290-97-8 		- - -345.00 €~2,324.00 €Tue 29 Oct 24
TRC logo
(S)-Penbutolol Sulfate
REF: TR-P220505CAS: 38363-32-5 		- - -308.00 €~519.00 €Tue 29 Oct 24
TRC logo
Chloropretadalafil
REF: TR-M330125CAS: 171489-59-1 		- - -132.00 €~232.00 €Tue 29 Oct 24
TRC logo
(2R)-3-Amino-2-fluoropropanoic Acid-13C3 >90% (up to 10% inorganics)
REF: TR-A609632CAS: 1217608-72-4 		- - -456.00 €~3,122.00 €Tue 29 Oct 24
TRC logo
Erdosteine
REF: TR-E596050CAS: 84611-23-4 		- - -171.00 €~755.00 €Tue 29 Oct 24
TRC logo
Dihydro Montelukast Sodium Salt
REF: TR-D449215CAS: 142147-98-6 		- - -245.00 €~1,525.00 €Tue 29 Oct 24
TRC logo
7-Epi Docetaxel
REF: TR-E585300CAS: 153381-68-1 		- - -402.00 €~2,320.00 €Tue 29 Oct 24
TRC logo
N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine Hydrochloride
REF: TR-P481260CAS: 24028-46-4 		- - -373.00 €~2,491.00 €Tue 29 Oct 24
TRC logo
Ampicillin Amino-benzeneacetaldehyde
REF: TR-A634375CAS: 10001-82-8 		- - -245.00 €~1,867.00 €Tue 29 Oct 24
TRC logo
(R)-Anabasine, > 98% ee
REF: TR-A637165CAS: 34366-21-7 		- - -178.00 €~562.00 €Tue 29 Oct 24
TRC logo
Emtricitabine S-Oxide (Mixture of Diastereomers)
REF: TR-E525030CAS: 152128-77-3 		- - -319.00 €~2,115.00 €Tue 29 Oct 24
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1,1-Dimethyl-1-propanol-d6
TRC logo
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1,1-Dimethyl-1-propanol-d6

Controlled Product
CAS:75295-95-3
Formula:
C5H6D6O
Color and Shape:
Neat
Molecular weight:
94.19

Ref: TR-D470832

25mg264.00 €
250mg1,754.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
(S)-N-[4-[[((S)-2-Amino-6,7,8,9-tetrahydro-8-methyl-4,9-dioxo-4H-pyrazino[1,2-a]-1,3,5-triazin-7-y…
TRC logo
+ info

(S)-N-[4-[[((S)-2-Amino-6,7,8,9-tetrahydro-8-methyl-4,9-dioxo-4H-pyrazino[1,2-a]-1,3,5-triazin-7-yl)methyl]amino]benzoyl]-L-glutamic Acid

Applications An impurity of Levomefolate (L375720), the natural form of folic acid. References Verlinde, P.H.C.., …
Formula:
C20H23N7O7
Color and Shape:
Neat
Molecular weight:
473.44

Ref: TR-A629750

1mg331.00 €
10mg2,145.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Belotecan Hydrochloride
TRC logo
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Belotecan Hydrochloride

Controlled Product
CAS:213819-48-8
Applications A novel camptothecin-derivative anti-tumor agent. CKD-602-related toxicities induced by IV infusion administration have not …
Formula:
C25H27N3O4·ClH
Color and Shape:
Neat
Molecular weight:
469.96

Ref: TR-B131300

10mg224.00 €
100mg1,620.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
(2R,3S)-N-Benzoyl-3-phenyl Isoserine Methyl Ester
TRC logo
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(2R,3S)-N-Benzoyl-3-phenyl Isoserine Methyl Ester

Controlled Product
CAS:32981-85-4
Applications (2R,3S)-N-Benzoyl-3-phenyl Isoserine Methyl Ester is an intermediate in the preparation of potent anticancer drug …
Formula:
C17H17NO4
Color and Shape:
Off White Powder
Molecular weight:
299.32

Ref: TR-B208560

1g833.00 €
100mg220.00 €
250mg300.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Acetone 2,4-Dinitrophenylhydrazone-13C3
TRC logo
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Acetone 2,4-Dinitrophenylhydrazone-13C3

Controlled Product
CAS:395075-27-1
Applications Isotope labelled Acetone 2,4-Dinitrophenylhydrazone is a dinitrophenylhydrazone (DNPH) derivative of an aliphatic ketone found …
Formula:
C613C3H10N4O4
Color and Shape:
Neat
Molecular weight:
241.18

Ref: TR-A163853

10mg276.00 €
50mg1,112.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
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discount label
N,N-Dimethylmelamine Metformin Impurity C
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N,N-Dimethylmelamine Metformin Impurity C

Controlled Product
CAS:1985-46-2
Impurity Metformin USP Related Compound C Applications N-Demethylated (Metformin EP Impurity C) metabolite of Altretamine …
Formula:
C5H10N6
Color and Shape:
Off-White
Molecular weight:
154.17

Ref: TR-D474600

1g611.00 €
50mg252.00 €
100mg345.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Diclofenac Acyl-b-D-glucuronide Allyl Ester
TRC logo
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Diclofenac Acyl-b-D-glucuronide Allyl Ester

Controlled Product
CAS:698358-10-0
Applications An intermediate for the synthesis of Diclofenac’s glucuronide metaoblite. Not a dangerous good if …
Formula:
C23H23Cl2NO8
Color and Shape:
Neat
Molecular weight:
512.34

Ref: TR-D436485

25mg1,637.00 €
2500µg248.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
21-Chloro-9-fluoro-11b,17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione 17-Propionate
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21-Chloro-9-fluoro-11b,17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione 17-Propionate

CAS:25122-52-5
Impurity Clobetasol Propionate EP Impurity C Applications 21-Chloro-9-fluoro-11β,17-dihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17-Propionate (Clobetasol Propionate EP Impurity C) is …
Formula:
C25H32ClFO5
Color and Shape:
Neat
Molecular weight:
466.97

Ref: TR-C366320

50mg329.00 €
500mg2,148.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Taurolithocholic Acid-d5 Sodium Salt (Major)
TRC logo
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Taurolithocholic Acid-d5 Sodium Salt (Major)

Controlled Product
CAS:1265476-97-8
Applications The major human metabolite, a labelled bile acid which inhibits radioligand binding to muscarinic …
Formula:
C26H39D5NNaO5S
Color and Shape:
White To Off-White
Molecular weight:
510.72

Ref: TR-T009102

1mg341.00 €
10mg2,195.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Erythromycin A 6,9-Imino Ether
TRC logo
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Erythromycin A 6,9-Imino Ether

CAS:99290-97-8
Stability Hygroscopic Applications An impurity in the synthesis of Erythromycin (E649950). An antibacterial. References Zhang, …
Formula:
C37H66N2O12
Color and Shape:
White To Off-White
Molecular weight:
730.93

Ref: TR-E650015

10mg345.00 €
100mg2,324.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
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discount label
(S)-Penbutolol Sulfate
TRC logo
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(S)-Penbutolol Sulfate

CAS:38363-32-5
Stability Hygroscopic Applications (S)-Penbutolol Sulfate is an isomer of Penbutolol (P220500), a β-adrenoceptor antagonist. Antihypertensive. …
Formula:
C18H29NO2·H2O4S
Color and Shape:
Neat
Molecular weight:
680.94

Ref: TR-P220505

100mg308.00 €
200mg519.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Chloropretadalafil
TRC logo
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Chloropretadalafil

CAS:171489-59-1
Applications An intermediate in the synthesis of Tadalafil (T004500), which is used for the treatment …
Formula:
C22H19ClN2O5
Color and Shape:
White To Light Orange Colour
Molecular weight:
426.85

Ref: TR-M330125

1g232.00 €
50mg132.00 €
500mg183.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
(2R)-3-Amino-2-fluoropropanoic Acid-13C3 >90% (up to 10% inorganics)
TRC logo
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(2R)-3-Amino-2-fluoropropanoic Acid-13C3 >90% (up to 10% inorganics)

Controlled Product
CAS:1217608-72-4
Formula:
C3H6FNO2
Color and Shape:
Neat
Molecular weight:
110.06

Ref: TR-A609632

5mg3,122.00 €
500µg456.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
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discount label
Erdosteine
TRC logo
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Erdosteine

Controlled Product
CAS:84611-23-4
Applications Erdosteine is a mucolytic. Erdosteine was developed for the treatment of chronic obstructive bronchitis. …
Formula:
C8H11NO4S2
Color and Shape:
White To Off-White
Molecular weight:
249.31

Ref: TR-E596050

1g220.00 €
5g755.00 €
500mg171.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Dihydro Montelukast Sodium Salt
TRC logo
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Dihydro Montelukast Sodium Salt

CAS:142147-98-6
Stability Hygroscopic Applications A Montelukast impurity. A saturated hydroxyalkylquinoline acid as leukotriene antagonist and biosynthesis …
Formula:
C35H37ClNO3S·Na
Color and Shape:
Neat
Molecular weight:
610.18

Ref: TR-D449215

1mg245.00 €
5mg948.00 €
10mg1,525.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
7-Epi Docetaxel
TRC logo
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7-Epi Docetaxel

Controlled Product
CAS:153381-68-1
Impurity Docetaxel EP Impurity C Applications 7-Epi Docetaxel (Docetaxel EP Impurity C) is an isomer …
Formula:
C43H53NO14
Color and Shape:
White
Molecular weight:
807.88

Ref: TR-E585300

1mg402.00 €
5mg1,541.00 €
10mg2,320.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine Hydrochloride
TRC logo
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N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine Hydrochloride

Controlled Product
CAS:24028-46-4
Formula:
C8H20N4•x(HCl)
Color and Shape:
Neat
Molecular weight:
172.273646

Ref: TR-P481260

10mg373.00 €
100mg2,491.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Ampicillin Amino-benzeneacetaldehyde
TRC logo
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Ampicillin Amino-benzeneacetaldehyde

Controlled Product
CAS:10001-82-8
Formula:
C24H26N4O5S
Color and Shape:
Neat
Molecular weight:
482.55

Ref: TR-A634375

5mg245.00 €
25mg722.00 €
100mg1,867.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
(R)-Anabasine, > 98% ee
TRC logo
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(R)-Anabasine, > 98% ee

Controlled Product
CAS:34366-21-7
Applications (R)-Anabasine is a minor tobacco alkaloid from Nicotiana tabacum that is known to have …
Formula:
C10H14N2
Color and Shape:
Light Yellow
Molecular weight:
162.23

Ref: TR-A637165

5mg315.00 €
10mg562.00 €
2500µg178.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
discount label
Emtricitabine S-Oxide (Mixture of Diastereomers)
TRC logo
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Emtricitabine S-Oxide (Mixture of Diastereomers)

Controlled Product
CAS:152128-77-3
Applications A metabolite of (-)-Emtricitabine (E525000). References Schinazi, R.F., et al.: Antimicrob. Ag. Chemother., 36, …
Formula:
C8H10FN3O4S
Color and Shape:
Off-White
Molecular weight:
263.25

Ref: TR-E525030

10mg319.00 €
100mg2,115.00 €
Estimated delivery in United States, on Tuesday 29 Oct 2024
+ info
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