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
4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzenepropanoic acid ethyl ester REF: 3D-IE23113CAS: 868754-42-1	Min. 95%	To inquire	Tue 11 Feb 25
TAK-137 REF: TM-T70880CAS: 1358749-55-9	99.27%	266.00 €~2,364.00 €	Tue 18 Feb 25
Mibampator REF: TM-T15820CAS: 375345-95-2	97.63%	36.00 €~181.00 €	Tue 18 Feb 25
SYM 2081 REF: TM-T16963CAS: 31137-74-3	99.59%	94.00 €~2,006.00 €	Tue 18 Feb 25
Dizocilpine REF: TM-T6259CAS: 77086-21-6	99.75% - 99.97%	35.00 €~895.00 €	Tue 18 Feb 25
CFM-2 REF: TM-T10774CAS: 178616-26-7	97.16%	To inquire	Tue 18 Feb 25
AMPA receptor antagonist-2 REF: TM-T61068CAS: 732277-05-3	98.21%	78.00 €~648.00 €	Tue 18 Feb 25
(S)-4-(2-Methylpropyl)-2-pyrrolidinone REF: 3D-IM156827CAS: 181289-23-6	Min. 95%	104.00 €~986.00 €	Tue 18 Feb 25
D-NMAPPD REF: TM-T22069CAS: 35922-06-6	- - -	77.00 €~1,760.00 €	Tue 18 Feb 25
AMPA receptor modulator-4 REF: TM-T78971CAS: 2917551-59-6	98%	907.00 €~2,337.00 €	Tue 18 Feb 25
Selurampanel REF: TM-T34609CAS: 912574-69-7	98.68% - 99.41%	177.00 €~3,368.00 €	Tue 18 Feb 25
MDL-29951 REF: TM-T1897CAS: 130798-51-5	99.07% - 99.49%	50.00 €~837.00 €	Tue 18 Feb 25
TAK-653 REF: TM-T61518CAS: 1358751-06-0	99.18%	41.00 €~564.00 €	Tue 18 Feb 25
LY450108 REF: TM-TQ0289CAS: 376594-67-1	100% - 98.8%	To inquire	Tue 18 Feb 25
Clopidogrel EP Impurity B hydrochloride REF: 3D-IC183809CAS: 1396607-35-4	Min. 95%	136.00 €~583.00 €	Tue 25 Feb 25
(R,R)-Montelukast bis-sulfide REF: 3D-IM111982CAS: 1187586-61-3	90%Min	472.00 €~2,319.00 €	Tue 25 Feb 25
Diphenoxylate Related Compound A CI (1-(3-Cyano-3,3-diphenylpropyl)-4-phenylpiperidine-4-carboxylic acid) REF: 45-1219019CAS: 28782-42-5	- - -	To inquire	Tue 25 Feb 25
N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide REF: 3D-IC58274CAS: 90357-51-0	Min. 95%	141.00 €~865.00 €	Tue 25 Feb 25
4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-carboxylate (5-methyl-2-oxo-1,3-dioxo len-4-yl)methyl REF: 3D-IH57932CAS: 144690-92-6	Min. 95%	68.00 €~1,047.00 €	Tue 25 Feb 25
Chlorthalidone impurity J REF: 3D-IC171609CAS: 956-92-3	Min. 95 Area-%	104.00 €~865.00 €	Tue 25 Feb 25

4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzenepropanoic acid ethyl ester

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4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzenepropanoic acid ethyl ester

CAS:868754-42-1

4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzenepropanoic acid ethyl ester is an analytical standard for metabolite identification and quantitation in human …

Formula:

C₂₀H₂₅NO₃

Purity:

Min. 95%

Molecular weight:

327.42 g/mol

Ref: 3D-IE23113

50mg To inquire

Estimated delivery in United States, on Tuesday 11 Feb 2025

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TAK-137

CAS:1358749-55-9

TAK-137 is an AMPA receptor enhancer with antidepressant effects. TAK-137 has the ability to improve …

Formula:

C₁₉H₁₆N₂O₃S

Purity:

99.27%

Color and Shape:

Liquid

Molecular weight:

352.41

Ref: TM-T70880

1mg		266.00 €
5mg		654.00 €
10mg		894.00 €
25mg		1,437.00 €
50mg		1,872.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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Mibampator

CAS:375345-95-2

Mibampator (LY451395) is an effective and selective AMPA receptor potentiator.

Formula:

C₂₁H₃₀N₂O₄S₂

Purity:

97.63%

Color and Shape:

Solid

Molecular weight:

438.6

Ref: TM-T15820

1mg		36.00 €
5mg		69.00 €
10mg		94.00 €
25mg		130.00 €
50mg		181.00 €
1mL*10mM (DMSO)		85.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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SYM 2081

CAS:31137-74-3

SYM 2081: Kainate receptor agonist, IC50 of 35 nM, depolarizes muscle, lowers EPSP amplitude.

Formula:

C₆H₁₁NO₄

Purity:

99.59%

Color and Shape:

Solid

Molecular weight:

161.16

Ref: TM-T16963

1mg		94.00 €
5mg		199.00 €
10mg		292.00 €
25mg		498.00 €
50mg		716.00 €
100mg		1,003.00 €
500mg		2,006.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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Dizocilpine

CAS:77086-21-6

MK-801 (Dizocilpine (MK-801)) is a potent N-methyl-D-aspartate (NMDA) receptor antagonist with Ki of 30.5 nM.

Formula:

C₁₆H₁₅N

Purity:

99.75% - 99.97%

Color and Shape:

Solid

Molecular weight:

221.3

Ref: TM-T6259

1mg		35.00 €
5mg		62.00 €
10mg		94.00 €
25mg		148.00 €
50mg		234.00 €
100mg		376.00 €
500mg		895.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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CFM-2

CAS:178616-26-7

CFM-2, a potent and selective non-competitive antagonist of AMPAR (AMPAR), exhibits anticonvulsant activity across various …

Formula:

C₁₇H₁₇N₃O₃

Purity:

97.16%

Color and Shape:

Solid

Molecular weight:

311.34

Ref: TM-T10774

5mg		58.00 €
10mg		95.00 €
25mg		To inquire
50mg		To inquire
1mL*10mM (DMSO)		64.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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AMPA receptor antagonist-2

CAS:732277-05-3

AMPA receptor antagonist-2 is an AMPA receptor antagonist.

Formula:

C₁₈H₁₇N₃O₄

Purity:

98.21%

Color and Shape:

Liquid

Molecular weight:

339.35

Ref: TM-T61068

1mg		78.00 €
5mg		161.00 €
10mg		229.00 €
25mg		342.00 €
50mg		482.00 €
100mg		648.00 €
1mL*10mM (DMSO)		161.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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(S)-4-(2-Methylpropyl)-2-pyrrolidinone

Controlled Product

CAS:181289-23-6

(S)-4-(2-Methylpropyl)-2-pyrrolidinone is a lactam that has been synthesized in the laboratory. It is an organic …

Formula:

C₈H₁₅NO

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

141.21 g/mol

Ref: 3D-IM156827

1g		647.00 €
2g		986.00 €
100mg		194.00 €
250mg		310.00 €
500mg		436.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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D-NMAPPD

CAS:35922-06-6

Litifilimab (BIIB059) is a humanized antibody targeting BDCA2 and CLEC4C for the study of cutaneous …

Formula:

C₂₃H₃₈N₂O₅

Color and Shape:

Solid

Molecular weight:

422.56

Ref: TM-T22069

1mg		77.00 €
5mg		245.00 €
10mg		450.00 €
50mg		1,760.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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AMPA receptor modulator-4

CAS:2917551-59-6

AMPA Receptor Modulator-4, a 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide (BTD), serves as an orally active positive allosteric modulator …

Formula:

C₁₁H₁₂ClFN₂O₂S

Purity:

98%

Color and Shape:

Liquid

Molecular weight:

290.74

Ref: TM-T78971

25mg		1,410.00 €
50mg		1,851.00 €
100mg		2,337.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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Selurampanel

CAS:912574-69-7

Selurampanel (BGG492), an oral AMPA antagonist for epilepsy, migraine, and tinnitus studies.

Formula:

C₁₆H₁₉N₅O₄S

Purity:

98.68% - 99.41%

Color and Shape:

Solid

Molecular weight:

377.42

Ref: TM-T34609

1mg		177.00 €
5mg		420.00 €
10mg		604.00 €
25mg		931.00 €
50mg		1,243.00 €
100mg		1,661.00 €
500mg		3,368.00 €
1mL*10mM (DMSO)		443.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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MDL-29951

CAS:130798-51-5

MDL-29951 is a novel glycine antagonist of NMDA receptor activation.

Formula:

C₁₂H₉Cl₂NO₄

Purity:

99.07% - 99.49%

Color and Shape:

Solid

Molecular weight:

302.11

Ref: TM-T1897

1mg		50.00 €
5mg		101.00 €
10mg		174.00 €
25mg		315.00 €
50mg		452.00 €
100mg		621.00 €
200mg		837.00 €
1mL*10mM (DMSO)		105.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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TAK-653

CAS:1358751-06-0

TAK-653 is a selective AMPA receptor PAM with minimal agonist activity, showing antidepressant-like effects and …

Formula:

C₁₉H₂₃N₃O₃S

Purity:

99.18%

Color and Shape:

Liquid

Molecular weight:

373.47

Ref: TM-T61518

2mg		41.00 €
5mg		62.00 €
10mg		88.00 €
25mg		172.00 €
50mg		273.00 €
100mg		397.00 €
200mg		564.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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LY450108

CAS:376594-67-1

LY450108 is a potentiator of the AMPA receptor that can be used in Parkinson's disease …

Formula:

C₁₉H₂₂F₂N₂O₃S

Purity:

100% - 98.8%

Color and Shape:

Solid

Molecular weight:

396.45

Ref: TM-TQ0289

1mg		46.00 €
2mg		40.00 €
5mg		59.00 €
10mg		96.00 €
25mg		148.00 €
50mg		215.00 €
100mg		299.00 €
200mg		476.00 €
1mL*10mM (DMSO)		66.00 €

Estimated delivery in United States, on Tuesday 18 Feb 2025

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Clopidogrel EP Impurity B hydrochloride

CAS:1396607-35-4

Please enquire for more information about Clopidogrel EP Impurity B hydrochloride including the price, delivery …

Formula:

C₁₆H₁₆ClNO₂S•HCl

Purity:

Min. 95%

Molecular weight:

358.28 g/mol

Ref: 3D-IC183809

10mg		136.00 €
25mg		172.00 €
50mg		233.00 €
100mg		364.00 €
250mg		583.00 €

Estimated delivery in United States, on Tuesday 25 Feb 2025

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(R,R)-Montelukast bis-sulfide

CAS:1187586-61-3

(R,R)-Montelukast bis-sulfide is a drug product that is used in the analytical and research and …

Formula:

C₄₁H₄₆ClNO₅S₂

Purity:

90%Min

Molecular weight:

732.39 g/mol

Ref: 3D-IM111982

1mg		472.00 €
2mg		647.00 €
5mg		986.00 €
10mg		1,276.00 €
25mg		2,319.00 €

Estimated delivery in United States, on Tuesday 25 Feb 2025

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Diphenoxylate Related Compound A CI (1-(3-Cyano-3,3-diphenylpropyl)-4-phenylpiperidine-4-carboxylic acid)

Controlled Product

CAS:28782-42-5

Alfentanil (inn), anileridine (inn), bezitramide (inn), bromazepam (inn), difenoxin (inn), diphenoxylate (inn), dipipanone (inn), fentanyl …

Formula:

C₂₈H₂₈N₂O₂

Color and Shape:

Powder

Molecular weight:

424.21508

Ref: 45-1219019

Estimated delivery in United States, on Tuesday 25 Feb 2025

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N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide

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N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide

CAS:90357-51-0

N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide (NUOX) is a potential anticancer agent that has been shown to have an acidic …

Formula:

C₁₂H₉F₃N₂O₂

Purity:

Min. 95%

Color and Shape:

White Powder

Molecular weight:

270.21 g/mol

Ref: 3D-IC58274

10g		141.00 €
25g		198.00 €
50g		308.00 €
100g		495.00 €
250g		865.00 €

Estimated delivery in United States, on Tuesday 25 Feb 2025

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4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-car…

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4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-carboxylate (5-methyl-2-oxo-1,3-dioxo len-4-yl)methyl

CAS:144690-92-6

5-methyl-2-oxo-1,3-dioxo-4-[(4-[2-(trityl)phenyl]phenyl)methylimidazo]-5-carboxylate is a drug that belongs to the group of angiotensin II receptor antagonists. The …

Formula:

C₄₈H₄₄N₆O₆

Purity:

Min. 95%

Color and Shape:

Solid

Molecular weight:

800.9 g/mol