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
N-Desmethyl Diltiazem-d4 Hydrochloride REF: TR-D291613CAS: 1217650-51-5	- - -	268.00 €~1,730.00 €	Mon 28 Oct 24
7-Hydroxy-N-des{[2-(2-hydroxy)ethoxy]ethyl} Quetiapine Dihydrochloride REF: TR-H936100CAS: 1397181-83-7	- - -	268.00 €~1,753.00 €	Mon 28 Oct 24
4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene REF: TR-B405540	- - -	259.00 €~1,749.00 €	Mon 28 Oct 24
17b-Hydroxy Exemestane REF: TR-H942340CAS: 122370-91-6	- - -	269.00 €~1,066.00 €	Mon 28 Oct 24
Rocuronium Bromide N-Oxide REF: TR-R639510	- - -	310.00 €~1,997.00 €	Mon 28 Oct 24
rac 2-Hydroxy Ibuprofen REF: TR-H942860CAS: 51146-55-5	- - -	166.00 €~488.00 €	Mon 28 Oct 24
Nilotinib N-Oxide REF: TR-N465310CAS: 1246817-85-5	- - -	236.00 €~1,585.00 €	Mon 28 Oct 24
8(14)-Dehydro Norgestrel (>80%) REF: TR-D229925CAS: 110785-09-6	>80%	487.00 €~11,069.00 €	Mon 28 Oct 24
(+/-)-Lisofylline-d6 REF: TR-L469052CAS: 1185995-26-9	- - -	429.00 €~2,894.00 €	Mon 28 Oct 24
Lumiflavin REF: TR-L473900CAS: 1088-56-8	- - -	236.00 €~2,228.00 €	Mon 28 Oct 24
(R)-(+)-O-Desmethyl Carvedilol REF: TR-D291480CAS: 123372-14-5	- - -	227.00 €	Mon 28 Oct 24
6b-Hydroxy Dutasteride REF: TR-H941810	- - -	405.00 €~2,733.00 €	Mon 28 Oct 24
Paliperidone Z-Oxime REF: TR-P143005CAS: 1388021-47-3	- - -	292.00 €~1,981.00 €	Mon 28 Oct 24
N-Nitrosodiethylamine-d10 REF: TR-N525466CAS: 1219794-54-3	- - -	140.00 €~477.00 €	Mon 28 Oct 24
Chlorodenafil REF: TR-C365535CAS: 1058653-74-9	- - -	356.00 €~2,462.00 €	Mon 28 Oct 24
5-Ethyl-2-methylpyridine(5-Ethyl-2-picoline) REF: TR-E925530CAS: 104-90-5	- - -	103.00 €~270.00 €	Mon 28 Oct 24
O-Desmethyl Midostaurin-13C6 REF: TR-D291402CAS: 740816-86-8	- - -	423.00 €~2,861.00 €	Mon 28 Oct 24
Hydroxy Cyclophosphamide Semicarbazone (80%) REF: TR-H926305CAS: 53948-46-2	80%	259.00 €~1,753.00 €	Mon 28 Oct 24
Rivastigmine N-Oxide (Technical Grade) REF: TR-R540900CAS: 1369779-37-2	- - -	245.00 €~1,652.00 €	Mon 28 Oct 24
Flunarizine-d8 Dihydrochloride REF: TR-F455202CAS: 1415586-83-2 30484-77-6	- - -	215.00 €~1,301.00 €	Mon 28 Oct 24

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N-Desmethyl Diltiazem-d4 Hydrochloride

Controlled Product

CAS:1217650-51-5

Applications A metabolite of Diltiazem (D460620), an antianginal, antihypertensive pharmaceutical. Diltiazem regulates Calcium release from …

Formula:

C₂₁H₂₁D₄ClN₂O₄S

Color and Shape:

Neat

Molecular weight:

440.98

Ref: TR-D291613

1mg		268.00 €
10mg		1,730.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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7-Hydroxy-N-des{[2-(2-hydroxy)ethoxy]ethyl} Quetiapine Dihydrochloride

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7-Hydroxy-N-des{[2-(2-hydroxy)ethoxy]ethyl} Quetiapine Dihydrochloride

Controlled Product

CAS:1397181-83-7

Stability Hygroscopic Applications A metabolite of Quetiapine. References McConville, B., et al.: J. Clin. Psychiatry, …

Formula:

C₁₇H₁₇N₃OSClH

Color and Shape:

White To Off-White

Molecular weight:

384.32

Ref: TR-H936100

1mg		268.00 €
10mg		1,753.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene

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4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene

Stability Light Sensitive Applications 4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene is a dimer impurity of Dapsone (D193250); an antibacterial used …

Formula:

C₂₄H₂₂N₄O₄S₂

Color and Shape:

Off White

Molecular weight:

494.59

Ref: TR-B405540

5mg		259.00 €
50mg		1,749.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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17b-Hydroxy Exemestane

Controlled Product

CAS:122370-91-6

Applications A metabolite of Exemestane; exerts biological effects as an androgen. References Howell, A., et …

Formula:

C₂₀H₂₆O₂

Color and Shape:

White To Light Yellow

Molecular weight:

298.42

Ref: TR-H942340

1mg		269.00 €
5mg		1,066.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Rocuronium Bromide N-Oxide

Controlled Product

Applications Aminosteroid, competitive neuromuscular blocker.

Formula:

C₃₂H₅₃BrN₂O₅

Color and Shape:

Neat

Molecular weight:

625.68

Ref: TR-R639510

1mg		310.00 €
10mg		1,997.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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rac 2-Hydroxy Ibuprofen

Controlled Product

CAS:51146-55-5

Applications A human metabolite of Ibuprofen. References Bales, J., et al.: Clin. Chem., 31, 757 …

Formula:

C₁₃H₁₈O₃

Color and Shape:

Off-White

Molecular weight:

222.28

Ref: TR-H942860

1mg		166.00 €
5mg		345.00 €
10mg		488.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Nilotinib N-Oxide

Controlled Product

CAS:1246817-85-5

Applications A metabolite of Nilotinib (N465300). It is a COVID19-related research product.

Formula:

C₂₈H₂₂F₃N₇O₂

Color and Shape:

Neat

Molecular weight:

545.52

Ref: TR-N465310

25mg		1,585.00 €
2500µg		236.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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8(14)-Dehydro Norgestrel (>80%)

Controlled Product

CAS:110785-09-6

Formula:

C₂₁H₂₆O₂

Purity:

>80%

Color and Shape:

Neat

Molecular weight:

310.43

Ref: TR-D229925

500µg		487.00 €
2500µg		1,899.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(+/-)-Lisofylline-d6

Controlled Product

CAS:1185995-26-9

Applications A major oxidative labelled metabolite of Pentoxifylline. A potent inhibitor of phosphatidic acid generation …

Formula:

C₁₃H₁₄D₆N₄O₃

Color and Shape:

Neat

Molecular weight:

286.36

Ref: TR-L469052

1mg		429.00 €
10mg		2,894.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Lumiflavin

Controlled Product

CAS:1088-56-8

Applications Lumiflavin is a toxic photolysis product of vitamin B2 (R415000). References Zhao, X. et …

Formula:

C₁₃H₁₂N₄O₂

Color and Shape:

Dark Yellow

Molecular weight:

256.26

Ref: TR-L473900

5mg		236.00 €
10mg		336.00 €
100mg		2,228.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(R)-(+)-O-Desmethyl Carvedilol

Controlled Product

CAS:123372-14-5

Applications An optically active metabolite of Carvedilol (C184625), a nonselective ß-adrenergic blocker with α-1-blocking activity. …

Formula:

C₂₃H₂₄N₂O₄

Color and Shape:

Neat

Molecular weight:

392.45

Ref: TR-D291480

1mg 227.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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6b-Hydroxy Dutasteride

Applications 6β-Hydroxy Dutasteride is a hydroxylated derivative of Dutasteride (D735000).

Formula:

C₂₇H₃₀F₆N₂O₃

Color and Shape:

Neat

Molecular weight:

544.43

Ref: TR-H941810

1mg		405.00 €
10mg		2,733.00 €

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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N-Nitrosodiethylamine-d10

Controlled Product

CAS:1219794-54-3

Applications N-Nitrosodiethylamine-d10 is a labelled form of N-Nitrosodiethylamine (N525465) which is a widely occurring nitrosamine …

Formula:

C₄H₁₀N₂O

Color and Shape:

Colourless To Yellow

Molecular weight:

112.20

Ref: TR-N525466

1mg		140.00 €
5mg		281.00 €
10mg		477.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Chlorodenafil

Controlled Product

CAS:1058653-74-9

Applications Chlorodenafil is a related compound of Sildenafil (S435000) as phosphodiesterase inhibitor. References Childress, S., …

Formula:

C₁₉H₂₁ClN₄O₃

Color and Shape:

Off White Solid

Molecular weight:

388.85

Ref: TR-C365535

250mg		356.00 €
2500mg		2,462.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-Ethyl-2-methylpyridine(5-Ethyl-2-picoline)

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5-Ethyl-2-methylpyridine(5-Ethyl-2-picoline)

CAS:104-90-5

Applications Perfume composition. Not a dangerous good if item is equal to or less than …

Formula:

C₈H₁₁N

Color and Shape:

Colourless

Molecular weight:

121.18

Ref: TR-E925530

1g		103.00 €
10g		178.00 €
100g		270.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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O-Desmethyl Midostaurin-13C6

Controlled Product

CAS:740816-86-8

Applications O-Desmethyl Midostaurin-13C6 is the labelled analogue of O-Desmethyl Midostaurin (D291400), a metabolite of Midostaurin …

Formula:

C₂₈₁₃C₆H₂₈N₄O₄

Color and Shape:

Neat

Molecular weight:

562.57

Ref: TR-D291402

1mg		1,589.00 €
250µg		423.00 €
2500µg		2,861.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Hydroxy Cyclophosphamide Semicarbazone (80%)

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Hydroxy Cyclophosphamide Semicarbazone (80%)

Controlled Product

CAS:53948-46-2

Applications Aldophosphamide Semicarbazone is a major metabolite of cyclophosphamide (C988580), a cytotoxic nitrogen mustard derivative …

Formula:

C₈H₁₈Cl₂N₅O₃P

Purity:

80%

Color and Shape:

Neat

Molecular weight:

334.14

Ref: TR-H926305

25mg		1,753.00 €
2500µg		259.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Rivastigmine N-Oxide (Technical Grade)

Controlled Product

CAS:1369779-37-2

Applications Rivastigmine N-Oxide is an impurity of Rivastigmine (R541000, Tartrate Salt) which is a brain …

Formula:

C₁₄H₂₂N₂O₃

Color and Shape:

Light Yellow Liquid

Molecular weight:

266.34

Ref: TR-R540900

25mg		1,652.00 €
2500µg		245.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Flunarizine-d8 Dihydrochloride

Controlled Product

CAS:1415586-83-2 30484-77-6

Applications Calcium channel blocker; fluorinated derivative of Cinnarizine. Vasodilator (cerebral and peripheral). This is the …

Formula:

C₂₆H₂₀D₈Cl₂F₂N₂

Color and Shape:

Neat

Molecular weight:

485.47

Ref: TR-F455202

1mg		215.00 €
10mg		1,301.00 €
2500µg		366.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Active pharmaceutical ingredient (API) impurities for research

N-Desmethyl Diltiazem-d4 Hydrochloride

Ref: TR-D291613

7-Hydroxy-N-des{[2-(2-hydroxy)ethoxy]ethyl} Quetiapine Dihydrochloride

Ref: TR-H936100

4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene

Ref: TR-B405540

17b-Hydroxy Exemestane

Ref: TR-H942340

Rocuronium Bromide N-Oxide

Ref: TR-R639510

rac 2-Hydroxy Ibuprofen

Ref: TR-H942860

Nilotinib N-Oxide

Ref: TR-N465310

8(14)-Dehydro Norgestrel (>80%)

Ref: TR-D229925

(+/-)-Lisofylline-d6

Ref: TR-L469052

Lumiflavin

Ref: TR-L473900

(R)-(+)-O-Desmethyl Carvedilol

Ref: TR-D291480

6b-Hydroxy Dutasteride

Ref: TR-H941810

Paliperidone Z-Oxime

Ref: TR-P143005

N-Nitrosodiethylamine-d10

Ref: TR-N525466

Chlorodenafil

Ref: TR-C365535

5-​Ethyl-​2-​methylpyridine(5-Ethyl-2-picoline)

Ref: TR-E925530

O-Desmethyl Midostaurin-13C6

Ref: TR-D291402

Hydroxy Cyclophosphamide Semicarbazone (80%)

Ref: TR-H926305

Rivastigmine N-Oxide (Technical Grade)

Ref: TR-R540900

Flunarizine-d8 Dihydrochloride

Ref: TR-F455202

5-Ethyl-2-methylpyridine(5-Ethyl-2-picoline)