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
AMPA receptor modulator-5 REF: TM-T79191CAS: 2034182-22-2	98%	1,290.00 €~3,484.00 €	Mon 03 Mar 25
AMPA receptor modulator-2 REF: TM-T37734CAS: 2034181-36-5	99.62%	121.00 €~2,775.00 €	Mon 03 Mar 25
AMPA receptor modulator-6 REF: TM-T79504CAS: 516491-33-1	98%	To inquire	Mon 03 Mar 25
Nevadistinel REF: TM-T79855CAS: 2181816-92-0	98%	686.00 €~5,260.00 €	Mon 03 Mar 25
7'-Methyl-2'-propyl-2,5'-bi-1H-benzimidazole REF: 3D-IM25660CAS: 884330-09-0	Min. 95%	136.00 €~466.00 €	Mon 10 Mar 25
Desogestrel Related Compound A REF: 3D-ID171690CAS: 201360-82-9	Min. 95%	2,887.00 €	Mon 10 Mar 25
1-(6-Chloro-9H-carbazol-2-yl)ethanone REF: 3D-IC20177CAS: 92841-22-0	Min. 95%	325.00 €~1,160.00 €	Mon 10 Mar 25
4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-benzaldehyde hydrochloride REF: 3D-IH171121CAS: 1956321-87-1	Min. 95%	924.00 €~4,058.00 €	Mon 10 Mar 25
Sitagliptin impurity E REF: 3D-FO103288CAS: 823817-56-7	Min. 95%	47.00 €~4,058.00 €	Mon 10 Mar 25
cis-Tadalafil REF: 3D-FT27987CAS: 171596-27-3	Min. 95%	104.00 €~1,160.00 €	Mon 10 Mar 25
Pidotimod diketopiperazine-6-propanoic acid REF: 3D-IP27041CAS: 161771-75-1	Min. 95%	To inquire	Mon 10 Mar 25
Chlorthalidone impurity E REF: 3D-IC76330CAS: 82875-49-8	Min. 95%	189.00 €~1,102.00 €	Mon 10 Mar 25
Desfluoro ciprofloxacin hydrochloride REF: 3D-ID58177CAS: 93107-11-0	Min. 95%	141.00 €~667.00 €	Mon 10 Mar 25
Sumatriptan 3-hydroxy-2-oxo impurity REF: 3D-IS183410CAS: 2250254-19-2	Min. 95%	734.00 €~8,697.00 €	Mon 10 Mar 25
Atorvastatin calcium trihydrate EP Impurity G REF: 3D-IA182820CAS: 887324-53-0	Min. 95%	251.00 €~10,434.00 €	Mon 24 Mar 25
11,11'-(1,4-Piperazinediyl)bis-dibenzo[b,f][1,4]thiazepine REF: 3D-IP27362CAS: 945668-94-0	Min. 95%	97.00 €~5,628.00 €	Mon 24 Mar 25
2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid REF: 3D-IA17597CAS: 1159977-03-3	Min. 95%	To inquire	Mon 24 Mar 25
4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide REF: 3D-IH21390CAS: 24683-25-8	Min. 95%	To inquire	Mon 24 Mar 25
13-O-Desmethyl tacrolimus REF: 3D-ID161984CAS: 139958-51-3	90%Min	341.00 €~1,971.00 €	Mon 24 Mar 25
(RS)-AMPA REF: TM-T16800CAS: 77521-29-0	98%	2,301.00 €~6,521.00 €	Mon 31 Mar 25

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AMPA receptor modulator-5

CAS:2034182-22-2

AMPA Receptor Modulator-5 (Example 217) serves as an AMPA receptor modulator, utilized in neurological disease …

Formula:

C₂₀H₁₂F₄N₆

Purity:

98%

Color and Shape:

Liquid

Molecular weight:

412.34

Ref: TM-T79191

5mg		1,290.00 €
50mg		2,618.00 €
100mg		3,484.00 €

Estimated delivery in United States, on Monday 3 Mar 2025

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AMPA receptor modulator-2

CAS:2034181-36-5

AMPA receptor modulator-2 is a modulator of AMPA receptor. The pIC50 value for TARPγ2 dependent …

Formula:

C₁₅H₆F₆N₄OS

Purity:

99.62%

Color and Shape:

Solid

Molecular weight:

404.29

Ref: TM-T37734

1mg		121.00 €
5mg		292.00 €
10mg		384.00 €
25mg		615.00 €
50mg		884.00 €
100mg		1,225.00 €
1mL*10mM (DMSO)		324.00 €

Estimated delivery in United States, on Monday 3 Mar 2025

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AMPA receptor modulator-6

CAS:516491-33-1

AMPA receptor modulator-6, an AMPA receptor positive allosteric modulator (PAM), is utilized in the research …

Formula:

C₂₄H₃₆N₂O₄S₂

Purity:

98%

Color and Shape:

Liquid

Molecular weight:

480.68

Ref: TM-T79504

5mg		To inquire
50mg		To inquire

Estimated delivery in United States, on Monday 3 Mar 2025

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Nevadistinel

CAS:2181816-92-0

Nevadistinel (NYX-458; NYX-3054) is a positive allosteric modulator of the N-methyl-D-aspartate (NMDA) receptor, indicated for …

Formula:

C₁₅H₁₈N₂O₃

Purity:

98%

Color and Shape:

Liquid

Molecular weight:

274.32

Ref: TM-T79855

1mg		686.00 €
5mg		1,425.00 €
10mg		1,894.00 €
25mg		2,831.00 €
50mg		3,797.00 €
100mg		5,260.00 €

Estimated delivery in United States, on Monday 3 Mar 2025

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7'-Methyl-2'-propyl-2,5'-bi-1H-benzimidazole

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7'-Methyl-2'-propyl-2,5'-bi-1H-benzimidazole

CAS:884330-09-0

7'-Methyl-2'-propyl-2,5'-bi-1H-benzimidazole (7'-MPB) is a benzimidazole derivative that is used as a medicine. It is made …

Formula:

C₁₈H₁₈N₄

Purity:

Min. 95%

Molecular weight:

290.36 g/mol

Ref: 3D-IM25660

25mg		136.00 €
50mg		138.00 €
100mg		186.00 €
250mg		345.00 €
500mg		466.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Desogestrel Related Compound A

CAS:201360-82-9

Desogestrel Related Compound A is a synthetic impurity standard. It is the metabolite of desogestrel, …

Formula:

C₂₂H₃₀O

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

310.47 g/mol

Ref: 3D-ID171690

15mg 2,887.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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1-(6-Chloro-9H-carbazol-2-yl)ethanone

CAS:92841-22-0

1-(6-Chloro-9H-carbazol-2-yl)ethanone is a chemical substance that belongs to the class of synthetic drugs. It is …

Formula:

C₁₄H₁₀ClNO

Purity:

Min. 95%

Molecular weight:

243.69 g/mol

Ref: 3D-IC20177

1mg		325.00 €
2mg		407.00 €
5mg		582.00 €
10mg		740.00 €
25mg		1,160.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-benzaldehyde hydrochloride

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4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-benzaldehyde hydrochloride

CAS:1956321-87-1

4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-benzaldehyde hydrochloride is a drug product. It is used as an analytical standard and in …

Formula:

C₁₃H₂₀ClNO₃

Purity:

Min. 95%

Molecular weight:

273.76 g/mol

Ref: 3D-IH171121

1g		3,246.00 €
2g		4,058.00 €
100mg		924.00 €
250mg		1,449.00 €
500mg		2,319.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Sitagliptin impurity E

CAS:823817-56-7

Sitagliptin impurity E is an inhibitor of dipeptidyl peptidase-4 (DPP-IV) that is used as a …

Formula:

C₁₆H₁₅F₆N₅O

Purity:

Min. 95%

Molecular weight:

407.31 g/mol

Ref: 3D-FO103288

1g		3,246.00 €
2g		3,478.00 €
5g		3,768.00 €
10g		4,058.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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cis-Tadalafil

CAS:171596-27-3

Cis-Tadalafil is a potent inhibitor of phosphodiesterase 5, which is used to treat erectile dysfunction …

Formula:

C₂₂H₁₉N₃O₄

Purity:

Min. 95%

Color and Shape:

White/Off-White Solid

Molecular weight:

389.4 g/mol

Ref: 3D-FT27987

10mg		194.00 €
25mg		363.00 €
50mg		518.00 €
100mg		739.00 €
250mg		1,160.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Pidotimod diketopiperazine-6-propanoic acid

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Pidotimod diketopiperazine-6-propanoic acid

CAS:161771-75-1

Pidotimod is an impurity in the drug product, which is a synthetic diketopiperazine-6-propanoic acid. Pidotimod …

Formula:

C₉H₁₂N₂O₄S

Purity:

Min. 95%

Molecular weight:

244.27 g/mol

Ref: 3D-IP27041

50mg		To inquire
100mg		To inquire
200mg		To inquire

Estimated delivery in United States, on Monday 10 Mar 2025

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Chlorthalidone impurity E

CAS:82875-49-8

Chlorthalidone impurity E is an analytical standard for the HPLC analysis of chlorthalidone in pharmaceutical …

Formula:

C₁₄H₁₁ClN₂O₃S

Purity:

Min. 95%

Molecular weight:

322.77 g/mol

Ref: 3D-IC76330

1mg		189.00 €
2mg		263.00 €
5mg		472.00 €
10mg		647.00 €
25mg		1,102.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Desfluoro ciprofloxacin hydrochloride

CAS:93107-11-0

Fluoroquinolones are a class of antibiotics that are used to treat bacterial infections. Desfluoro ciprofloxacin …

Formula:

C₁₇H₁₉N₃O₃·HCl

Purity:

Min. 95%

Color and Shape:

Off-White Powder

Molecular weight:

349.81 g/mol

Ref: 3D-ID58177

1mg		141.00 €
2mg		175.00 €
5mg		278.00 €
10mg		389.00 €
25mg		667.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Sumatriptan 3-hydroxy-2-oxo impurity

CAS:2250254-19-2

Please enquire for more information about Sumatriptan 3-hydroxy-2-oxo impurity including the price, delivery time and …

Formula:

C₁₄H₂₁N₃O₄S

Purity:

Min. 95%

Molecular weight:

327.4 g/mol

Ref: 3D-IS183410

50mg		3,188.00 €
100mg		4,638.00 €
250mg		6,956.00 €
500mg		8,697.00 €

Estimated delivery in United States, on Monday 10 Mar 2025

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Atorvastatin calcium trihydrate EP Impurity G

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Atorvastatin calcium trihydrate EP Impurity G

CAS:887324-53-0

Atorvastatin is a drug that belongs to the class of statins. It is used for …

Formula:

C₃₄H₃₇FN₂O₅

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

572.67 g/mol

Ref: 3D-IA182820

25mg		2,319.00 €
50mg		3,710.00 €
100mg		6,955.00 €
250mg		10,434.00 €

Estimated delivery in United States, on Monday 24 Mar 2025

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11,11'-(1,4-Piperazinediyl)bis-dibenzo[b,f][1,4]thiazepine

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11,11'-(1,4-Piperazinediyl)bis-dibenzo[b,f][1,4]thiazepine

CAS:945668-94-0

11,11'-(1,4-Piperazinediyl)bis-dibenzo[b,f][1,4]thiazepine is a molecule that inhibits the replication of DNA and RNA in viruses. The …

Formula:

C₃₀H₂₄N₄S₂

Purity:

Min. 95%

Color and Shape:

Yellow Solid

Molecular weight:

504.67 g/mol

Ref: 3D-IP27362

5g		2,324.00 €
10g		3,251.00 €
25g		5,628.00 €

Estimated delivery in United States, on Monday 24 Mar 2025

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2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid

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2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid

CAS:1159977-03-3

This is a synthetic, impurity standard for 2-Amino-5,6-dichloro-3-(4H)-quinazoline acetic acid (CAS No. 1159977-03-3) that can …

Formula:

C₁₀H₉Cl₂N₃O₂

Purity:

Min. 95%

Molecular weight:

274.1 g/mol

Ref: 3D-IA17597

25mg		1,739.00 €
50mg		2,898.00 €

Estimated delivery in United States, on Monday 24 Mar 2025

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4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

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4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

CAS:24683-25-8

This is a white crystalline compound that has been shown to be effective against glutamic …

Formula:

C₁₀H₁₀N₂O₄S

Purity:

Min. 95%

Molecular weight:

254.26 g/mol

Ref: 3D-IH21390

10mg		To inquire
25mg		To inquire
50mg		To inquire

Estimated delivery in United States, on Monday 24 Mar 2025

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13-O-Desmethyl tacrolimus

CAS:139958-51-3

Tacrolimus is a macrolide immunosuppressant that is used to prevent organ rejection in transplant patients. …

Formula:

C₄₃H₆₇NO₁₂

Purity:

90%Min

Color and Shape:

Powder

Molecular weight:

789.99 g/mol

Ref: 3D-ID161984

1mg		341.00 €
2mg		453.00 €
5mg		711.00 €
10mg		1,047.00 €
25mg		1,971.00 €

Estimated delivery in United States, on Monday 24 Mar 2025

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(RS)-AMPA

CAS:77521-29-0

(RS)-AMPA ((±)-AMPA) is a glutamate analog. (RS)-AMPA is an agonist of effective and selective excitatory …

Formula:

C₇H₁₀N₂O₄

Purity:

98%

Color and Shape:

Solid

Molecular weight:

186.17

Ref: TM-T16800

25mg		3,497.00 €
50mg		4,639.00 €
100mg		6,521.00 €

Estimated delivery in United States, on Monday 31 Mar 2025

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