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
Levamfetamine-d3 Hydrochloride REF: TR-A634242CAS: 41820-21-7 63427-75-8	- - -	260.00 €~1,754.00 €	Mon 28 Oct 24
N-Methyl Naltrexone-d3 Bromide REF: TR-M320352CAS: 73232-52-7	- - -	308.00 €~2,033.00 €	Mon 28 Oct 24
Paliperidone Z-Oxime REF: TR-P143005CAS: 1388021-47-3	- - -	292.00 €~1,981.00 €	Mon 28 Oct 24
Deferiprone-d3 3-O-b-D-Glucuronide Sodium Salt REF: TR-D474012CAS: 141675-48-1	- - -	317.00 €~2,049.00 €	Mon 28 Oct 24
3’-Anhydro Ezetimibe REF: TR-A637970CAS: 204589-68-4	- - -	780.00 €~1,446.00 €	Mon 28 Oct 24
Acetanilide (Acetylaniline) REF: TR-A168330CAS: 103-84-4	- - -	133.00 €~170.00 €	Mon 28 Oct 24
Promethazine Sulfoxide REF: TR-P757010CAS: 7640-51-9	- - -	273.00 €~1,079.00 €	Mon 28 Oct 24
MDMA-d3 Hydrochloride REF: TR-M303987CAS: 1219794-60-1	- - -	90.00 €~574.00 €	Mon 28 Oct 24
4-(Aminomethyl)-1-cyclohexene-1-carboxylic Acid(Tranexamic acid Impurity) REF: TR-A615530CAS: 330838-52-3	- - -	126.00 €~1,044.00 €	Mon 28 Oct 24
ent-Entecavir REF: TR-E558905CAS: 188399-46-4	- - -	509.00 €~3,961.00 €	Mon 28 Oct 24
(S,R)-Palonosetron Hydrochloride Contains up to ~35% (R,R)-isomer REF: TR-P165810CAS: 135729-76-9	- - -	299.00 €~2,011.00 €	Mon 28 Oct 24
5-(5-((4-Cyclopentylpiperazin-1-yl)sulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one REF: TR-C989015CAS: 1173706-34-7	- - -	319.00 €~2,114.00 €	Mon 28 Oct 24
4-Methyl Erlotinib Hydrochloride REF: TR-M304630CAS: 1346601-52-2	- - -	414.00 €~2,852.00 €	Mon 28 Oct 24
Trandolaprilat-phenyl-d5 REF: TR-T713522CAS: 1356841-27-4	- - -	422.00 €~2,911.00 €	Mon 28 Oct 24
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	- - -	116.00 €~565.00 €	Mon 28 Oct 24
N-(5-Amino-2-methylphenyl)-4-(3-pyridyl)-2-pyrimidineamine REF: TR-A618220CAS: 152460-10-1	- - -	158.00 €~441.00 €	Mon 28 Oct 24
(R,R)-Palonosetron Hydrochloride REF: TR-P165805CAS: 135729-75-8	- - -	285.00 €~511.00 €	Mon 28 Oct 24
(bR,δR,1S,2S)-1,2-Dihydro-b,δ,6-trihydroxy-2-methyl-1-naphthaleneheptanoic Acid Sodium Salt(Pravastatin Impurity) REF: TR-D449860CAS: 720666-74-0	- - -	374.00 €~2,702.00 €	Mon 28 Oct 24
N-Hydroxy Norfloxacin REF: TR-H948810CAS: 109142-49-6	- - -	145.00 €	Mon 28 Oct 24
Epinephrine Sulfonic Acid REF: TR-E588605CAS: 26405-77-6	- - -	344.00 €~2,220.00 €	Mon 28 Oct 24

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Levamfetamine-d3 Hydrochloride

Controlled Product

CAS:41820-21-7 63427-75-8

Applications Isotope labelled analogue of (R)-Amphetamine (A634240), a central nervous system stimulant and an anorexic …

Formula:

C₉H₁₀D₃N·HCl

Color and Shape:

Neat

Molecular weight:

174.69

Ref: TR-A634242

1mg		260.00 €
10mg		1,754.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Methyl Naltrexone-d3 Bromide

Controlled Product

CAS:73232-52-7

Applications A labelled metabolite of Naltrexone (N285750). Methylnaltrexone (MNTX), a selective μ-opioid receptor antagonist, functions …

Formula:

C₂₁H₂₃D₃BrNO₄

Color and Shape:

Neat

Molecular weight:

439.36

Ref: TR-M320352

1mg		308.00 €
10mg		2,033.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Paliperidone Z-Oxime

Controlled Product

CAS:1388021-47-3

Applications Paliperidone Z-oxime is an impurity of Paliperidone (P141000), a known orally active antipsychotic agent. …

Formula:

C₂₃H₂₈F₂N₄O₃

Color and Shape:

Neat

Molecular weight:

446.49

Ref: TR-P143005

25mg		1,981.00 €
2500µg		292.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Deferiprone-d3 3-O-b-D-Glucuronide Sodium Salt

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Deferiprone-d3 3-O-b-D-Glucuronide Sodium Salt

Controlled Product

CAS:141675-48-1

Stability Very Hygroscopic Applications A labelled metabolite of Deferiprone (D474000). References Choudhury, R., et al.: …

Formula:

C₁₃H₁₃D₃NNaO₈

Color and Shape:

Off-White To Light Beige

Molecular weight:

340.28

Ref: TR-D474012

1mg		317.00 €
10mg		2,049.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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3’-Anhydro Ezetimibe

Controlled Product

CAS:204589-68-4

Formula:

C₂₄H₁₉F₂NO₂

Color and Shape:

Neat

Molecular weight:

391.41

Ref: TR-A637970

5mg		780.00 €
10mg		1,446.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Acetanilide (Acetylaniline)

Controlled Product

CAS:103-84-4

Impurity Paracetamol EP Impurity D Applications Acetanilide (Acetylaniline) the first aniline derivative found to possess …

Formula:

C₈H₉NO

Color and Shape:

White To Light Brown

Molecular weight:

135.16

Ref: TR-A168330

1g		170.00 €
10mg		133.00 €
100mg		154.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Promethazine Sulfoxide

Controlled Product

CAS:7640-51-9

Impurity Promethazine EP Impurity D Applications Promethazine Sulfoxide (Promethazine EP Impurity D) is a metabolite …

Formula:

C₁₇H₂₀N₂OS

Color and Shape:

White Solid

Molecular weight:

300.42

Ref: TR-P757010

10mg		273.00 €
25mg		384.00 €
100mg		1,079.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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MDMA-d3 Hydrochloride

Controlled Product

CAS:1219794-60-1

Applications Labelled 3,4-Methylenedioxymethamphetamine (MDMA), an Entactogen; It is the N-methyl derivative of MDA. The (S)-form …

Formula:

C₁₁D₃H₁₂NO₂·ClH

Color and Shape:

Neat

Molecular weight:

232.7217

Ref: TR-M303987

1mg		179.00 €
5mg		574.00 €
50µg		90.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4-(Aminomethyl)-1-cyclohexene-1-carboxylic Acid(Tranexamic acid Impurity)

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4-(Aminomethyl)-1-cyclohexene-1-carboxylic Acid(Tranexamic acid Impurity)

Controlled Product

CAS:330838-52-3

Impurity Tranexamic EP Impurity C Stability Hygroscopic Applications 4-(Aminomethyl)-1-cyclohexene-1-carboxylic Acid (Tranexamic EP Impurity C) is …

Formula:

C₈H₁₃NO₂

Color and Shape:

Neat

Molecular weight:

155.19

Ref: TR-A615530

1mg		126.00 €
5mg		272.00 €
25mg		1,044.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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ent-Entecavir

Controlled Product

CAS:188399-46-4

Applications ent-Entecavir is an enantiomeric impurity of the antiviral drug Entecavir (E558900). References Ruediger, E. …

Formula:

C₁₂H₁₅N₅O₃

Color and Shape:

Neat

Molecular weight:

277.28

Ref: TR-E558905

1mg		509.00 €
10mg		3,961.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(S,R)-Palonosetron Hydrochloride Contains up to ~35% (R,R)-isomer

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(S,R)-Palonosetron Hydrochloride Contains up to ~35% (R,R)-isomer

Controlled Product

CAS:135729-76-9

Stability Hygroscopic Applications The (S,R)-enantiomer of Palonosetron (P165800), a potent and selective antagonist, with 5-HT3 …

Formula:

C₁₉H₂₄N₂O·ClH

Color and Shape:

Neat

Molecular weight:

332.87

Ref: TR-P165810

5mg		299.00 €
50mg		2,011.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-(5-((4-Cyclopentylpiperazin-1-yl)sulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]p…

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5-(5-((4-Cyclopentylpiperazin-1-yl)sulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

Controlled Product

CAS:1173706-34-7

Formula:

C₂₆H₃₆N₆O₄S

Color and Shape:

White Solid

Molecular weight:

528.67

Ref: TR-C989015

25mg		319.00 €
250mg		2,114.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4-Methyl Erlotinib Hydrochloride

Controlled Product

CAS:1346601-52-2

Applications Erlotinib (E625000) derivative as internal standard for HPLC.

Formula:

C₂₃H₂₅N₃O₄·ClH

Color and Shape:

Neat

Molecular weight:

443.9232

Ref: TR-M304630

5mg		414.00 €
50mg		2,852.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Trandolaprilat-phenyl-d5

Controlled Product

CAS:1356841-27-4

Applications A Labelled metabolite of Trandolapril, an antihypertensive. References Blankley, C.J., et al.: J. Med. …

Formula:

C₂₂H₂₅D₅N₂O₅

Color and Shape:

Neat

Molecular weight:

407.51

Ref: TR-T713522

1mg		422.00 €
10mg		2,911.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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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…

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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

1g		116.00 €
10g		565.00 €
2500mg		225.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-(5-Amino-2-methylphenyl)-4-(3-pyridyl)-2-pyrimidineamine

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N-(5-Amino-2-methylphenyl)-4-(3-pyridyl)-2-pyrimidineamine

Controlled Product

CAS:152460-10-1

Impurity Imatinib EP Impurity F Applications N-(5-Amino-2-methylphenyl)-4-(3-pyridyl)-2-pyrimidineamine (Imatinib EP Impurity F) is a selective inhibitor …

Formula:

C₁₆H₁₅N₅

Color and Shape:

Yellow To Dark Yellow

Molecular weight:

277.32