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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
Methyl 2-Methyl-6-(3-nitrophenyl)-4-oxo-2-cyclohexene-1-carboxylate
REF: TR-M338310CAS: 87625-92-1 		- - -320.00 €~2,109.00 €Mon 28 Oct 24
TRC logo
2-Hydroxy Imiquimod
REF: TR-A611515CAS: 112668-45-8 		- - -324.00 €~2,171.00 €Mon 28 Oct 24
TRC logo
1,2-Dihydro Dexamethasone
REF: TR-D449010CAS: 426-17-5 		- - -308.00 €~631.00 €Mon 28 Oct 24
TRC logo
1,3-Bis(2-methoxyphenoxy)-2-propanol
REF: TR-B490030CAS: 16929-60-5 		- - -165.00 €~386.00 €Mon 28 Oct 24
TRC logo
Hawkinsin TFA Salt
REF: TR-H195025CAS: 63224-90-8 		- - -336.00 €~1,245.00 €Mon 28 Oct 24
TRC logo
Methotrexate-d3 Triglutamate Trifluoroacetate
REF: TR-M260727CAS:
- - -366.00 €~2,528.00 €Mon 28 Oct 24
TRC logo
1,1,3,3,3-Pentafluoro-2-(fluoromethoxy)-1-propene
REF: TR-P227245CAS: 58109-34-5 		- - -164.00 €~1,121.00 €Mon 28 Oct 24
TRC logo
Prochlorperazine Sulfoxide-d3
REF: TR-P755812CAS: 1189943-37-0 		- - -311.00 €~1,981.00 €Mon 28 Oct 24
TRC logo
4-Acetaminophen-d3 Sulfate Potassium Salt
REF: TR-A161227CAS: 1020718-78-8 		- - -252.00 €~1,743.00 €Mon 28 Oct 24
TRC logo
Amoxycilloic Acid Sodium Salt (Mixture of Diastereomers)
REF: TR-A634268CAS: 42947-63-7 		- - -330.00 €~2,142.00 €Mon 28 Oct 24
TRC logo
3-[5-(1,5-Dioxo-5-(p-fluophenylpentyl]-4(S)-phenyl-2-oxazolidinone
REF: TR-D486425CAS: 189028-93-1 		- - -240.00 €Mon 28 Oct 24
TRC logo
a-Hydroxy Olopatadine (>90%)
REF: TR-H948771CAS: 1331822-32-2 		>90%324.00 €~2,221.00 €Mon 28 Oct 24
TRC logo
8-Chloro Caffeine
REF: TR-C364780CAS: 4921-49-7 		- - -299.00 €~1,934.00 €Mon 28 Oct 24
TRC logo
3-Hydroxy-4-methoxyphenethylamine Hydrochloride
REF: TR-H947710CAS: 645-33-0 		- - -106.00 €~245.00 €Mon 28 Oct 24
TRC logo
2-Chloro-N-[2-(diethylamino)ethyl]-4-quinolinecarboxamide
REF: TR-C365260CAS: 87864-14-0 		- - -120.00 €~1,283.00 €Mon 28 Oct 24
TRC logo
Piperazonifil
REF: TR-P480470CAS: 1335201-04-1 		- - -315.00 €~2,109.00 €Mon 28 Oct 24
TRC logo
rac Octopamine-d3 Hydrochloride
REF: TR-O239753CAS: 1219803-62-9 		- - -314.00 €~2,979.00 €Mon 28 Oct 24
TRC logo
2-Chlorobenzophenone
REF: TR-C364575CAS: 5162-03-8 		- - -252.00 €~1,707.00 €Mon 28 Oct 24
TRC logo
N-Acetyl-S-(methylphenyl-13C6)-L-cysteine
REF: TR-A168426CAS: 19542-77-9 		- - -468.00 €Mon 28 Oct 24
TRC logo
1,4-Benzenedicarboxylic Acid Dimethyl Ester
REF: TR-B185325CAS: 120-61-6 		- - -94.00 €Mon 28 Oct 24
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Methyl 2-Methyl-6-(3-nitrophenyl)-4-oxo-2-cyclohexene-1-carboxylate
TRC logo
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Methyl 2-Methyl-6-(3-nitrophenyl)-4-oxo-2-cyclohexene-1-carboxylate

CAS:87625-92-1
Applications Methyl 2-Methyl-6-(3-nitrophenyl)-4-oxo-2-cyclohexene-1-carboxylate is a nicardipine impurity. Also, it is derived from Methyl Acetoacetate (O848425), …
Formula:
C15H15NO5·CH17NO5
Color and Shape:
Neat
Molecular weight:
592.59

Ref: TR-M338310

25mg320.00 €
50mg559.00 €
250mg2,109.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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2-Hydroxy Imiquimod
TRC logo
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2-Hydroxy Imiquimod

Controlled Product
CAS:112668-45-8
Applications 1-(4-Amino-1H-imidazo[4,5-c]quinolin-1-yl)-2-methylpropan-2-ol, has been shown to activate a toll-like receptor 7/8 Independent Cytokine, which can …
Formula:
C14H16N4O
Color and Shape:
Neat
Molecular weight:
256.3

Ref: TR-A611515

25mg2,171.00 €
2500µg324.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
1,2-Dihydro Dexamethasone
TRC logo
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1,2-Dihydro Dexamethasone

CAS:426-17-5
Applications A derivatives of Dexamethasone (D298800), an analog of cortical hormones. References Giesen, E.M., et …
Formula:
C22H31FO5
Color and Shape:
White To Light Beige
Molecular weight:
394.48

Ref: TR-D449010

10mg308.00 €
25mg347.00 €
50mg631.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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1,3-Bis(2-methoxyphenoxy)-2-propanol
TRC logo
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1,3-Bis(2-methoxyphenoxy)-2-propanol

Controlled Product
CAS:16929-60-5
Impurity Guaifenesin EP Impurity D Stability Hygroscopic Applications 1,3-Bis(2-methoxyphenoxy)-2-propanol is an impurity of Atenolol (A790075), …
Formula:
C17H20O5
Color and Shape:
White
Molecular weight:
304.34

Ref: TR-B490030

25mg165.00 €
50mg228.00 €
100mg386.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
Hawkinsin TFA Salt
TRC logo
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Hawkinsin TFA Salt

Controlled Product
CAS:63224-90-8
Applications Hawkinsin is a urinary metabolite from the rare disorder of tyrosine metabolism, known as …
Formula:
C11H17NO6S•x(C2HF3O2)
Color and Shape:
Neat
Molecular weight:
291.3211402

Ref: TR-H195025

5mg336.00 €
10mg589.00 €
25mg1,245.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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Methotrexate-d3 Triglutamate Trifluoroacetate
TRC logo
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Methotrexate-d3 Triglutamate Trifluoroacetate

Controlled Product
CAS:41600-14-0 432545-63-6
Stability Hygroscopic Applications Methotrexate-d3 Triglutamate is the isotope labelled analog of Methotrexate Triglutamate (M260725); a …
Formula:
C30H33D3N10O11(C2HF3O2)x
Color and Shape:
Neat
Molecular weight:
715.69

Ref: TR-M260727

1mg366.00 €
10mg2,528.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
1,1,3,3,3-Pentafluoro-2-(fluoromethoxy)-1-propene
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1,1,3,3,3-Pentafluoro-2-(fluoromethoxy)-1-propene

CAS:58109-34-5
Applications 1,1,3,3,3-Pentafluoro-2-(fluoromethoxy)-1-propene is an impurity of Sevoflurane (H291050), and acts as an anaesthetic. Not a …
Formula:
C4H2F6O
Color and Shape:
Neat
Molecular weight:
180.05

Ref: TR-P227245

5mg164.00 €
50mg1,121.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
Prochlorperazine Sulfoxide-d3
TRC logo
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Prochlorperazine Sulfoxide-d3

Controlled Product
CAS:1189943-37-0
Applications A labelled metabolite of Prochlorperazine. References Finn, A., et al.: J. Clin. Pharmacol., 45, …
Formula:
C20H3H21ClN3OS
Color and Shape:
Off White
Molecular weight:
392.96

Ref: TR-P755812

1mg311.00 €
10mg1,981.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
4-Acetaminophen-d3 Sulfate Potassium Salt
TRC logo
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4-Acetaminophen-d3 Sulfate Potassium Salt

Controlled Product
CAS:1020718-78-8
Applications 4-Acetaminophen-d3 Sulfate is deuterium labeled metabolite of Acetaminophen (A161220), an analgesic and antipyretic agent …
Formula:
C8H3H6NO5S
Color and Shape:
White To Off-White
Molecular weight:
234.24

Ref: TR-A161227

1mg252.00 €
10mg1,743.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
Amoxycilloic Acid Sodium Salt (Mixture of Diastereomers)
TRC logo
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Amoxycilloic Acid Sodium Salt (Mixture of Diastereomers)

CAS:42947-63-7
Applications Amoxycilloic Acid Sodium Salt is an impurity of Amoxicillin (A634235), a semi-synthetic antibiotic related …
Formula:
C16H21N3O6S•xNa
Color and Shape:
Neat
Molecular weight:
383.42

Ref: TR-A634268

10mg330.00 €
100mg2,142.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
3-[5-(1,5-Dioxo-5-(p-fluophenylpentyl]-4(S)-phenyl-2-oxazolidinone
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3-[5-(1,5-Dioxo-5-(p-fluophenylpentyl]-4(S)-phenyl-2-oxazolidinone

Controlled Product
CAS:189028-93-1
Formula:
C20H18FNO4
Color and Shape:
Neat
Molecular weight:
355.3596

Ref: TR-D486425

100mg240.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
a-Hydroxy Olopatadine (>90%)
TRC logo
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a-Hydroxy Olopatadine (>90%)

Controlled Product
CAS:1331822-32-2
Applications α-Hydroxy Olopatadine is an impurity of Olopatadine (O575000), a dual acting histamine H1-receptor antagonist …
Formula:
C21H23NO4
Purity:
>90%
Color and Shape:
Neat
Molecular weight:
353.41

Ref: TR-H948771

1mg324.00 €
10mg2,221.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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8-Chloro Caffeine
TRC logo
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8-Chloro Caffeine

CAS:4921-49-7
Applications A halogenated analog of Caffeine (C080100) as potential radiosensitizing agent. References Bruns, R.F., et …
Formula:
C8H9ClN4O2
Color and Shape:
White Solid
Molecular weight:
228.64

Ref: TR-C364780

1g299.00 €
10g1,934.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
3-Hydroxy-4-methoxyphenethylamine Hydrochloride
TRC logo
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3-Hydroxy-4-methoxyphenethylamine Hydrochloride

Controlled Product
CAS:645-33-0
Stability Hygroscopic Applications 3-Hydroxy-4-methoxyphenethylamine Hydrochloride is a derivative of Dopamine (D533780), an endogenous catecholamine with …
Formula:
C9H13NO2·ClH
Color and Shape:
White
Molecular weight:
203.67

Ref: TR-H947710

25mg106.00 €
100mg154.00 €
250mg245.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
2-Chloro-N-[2-(diethylamino)ethyl]-4-quinolinecarboxamide
TRC logo
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2-Chloro-N-[2-(diethylamino)ethyl]-4-quinolinecarboxamide

CAS:87864-14-0
Applications Intermediate in the preparation of Dibucaine.
Formula:
C16H20ClN3O
Color and Shape:
Neat
Molecular weight:
305.80

Ref: TR-C365260

10g1,283.00 €
500mg120.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
Piperazonifil
TRC logo
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Piperazonifil

Controlled Product
CAS:1335201-04-1
Applications Piperazonifil is an analog of Sildenafil (S435000), an orally active selective type 5 cGMP …
Formula:
C25H34N6O4
Color and Shape:
Off White Solid
Molecular weight:
482.58

Ref: TR-P480470

10mg315.00 €
100mg2,109.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
rac Octopamine-d3 Hydrochloride
TRC logo
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rac Octopamine-d3 Hydrochloride

Controlled Product
CAS:1219803-62-9
Applications Labelled Octopamine (O239750). A biogenic amine that is the phenol analog of Noradrenaline. It …
Formula:
C8H3H8NO2·ClH
Color and Shape:
Neat
Molecular weight:
192.66

Ref: TR-O239753

1mg314.00 €
10mg1,991.00 €
25mg2,979.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
discount label
2-Chlorobenzophenone
TRC logo
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2-Chlorobenzophenone

CAS:5162-03-8
Impurity Clotrimazole EP Impurity E Applications 2-Chlorobenzophenone (Clotrimazole EP Impurity E) is a metabolite of …
Formula:
C13H9ClO
Color and Shape:
Neat
Molecular weight:
216.66

Ref: TR-C364575

5g252.00 €
50g1,707.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
N-Acetyl-S-(methylphenyl-13C6)-L-cysteine
TRC logo
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N-Acetyl-S-(methylphenyl-13C6)-L-cysteine

Controlled Product
CAS:19542-77-9
Formula:
C613C6H15NO3S
Color and Shape:
Neat
Molecular weight:
259.27

Ref: TR-A168426

500µg468.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
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discount label
1,4-Benzenedicarboxylic Acid Dimethyl Ester
TRC logo
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1,4-Benzenedicarboxylic Acid Dimethyl Ester

CAS:120-61-6
Applications 1,4-Benzenedicarboxylic Acid Dimethyl Ester is a derivative of terephthalic acid (T112500), a benzenepolycarboxylic acid …
Formula:
C10H10O4
Color and Shape:
White
Molecular weight:
194.18

Ref: TR-B185325

1g94.00 €
Estimated delivery in United States, on Monday 28 Oct 2024
+ info
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