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
Zopiclone R-Isomer CIV ((-)-(5R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate) REF: 45-1729118CAS: 138680-08-7	- - -	To inquire	Mon 24 Feb 25
Oxycodone Related Compound C CII (codeinone) REF: 45-1485238CAS: 467-13-0	- - -	To inquire	Mon 24 Feb 25
1-Fluoronaphthalene REF: 3D-IF23445CAS: 321-38-0	Min. 95%	136.00 €~723.00 €	Mon 24 Feb 25
Roflumilast Impurity A REF: 3D-IR168438CAS: 475271-62-6	Min. 95%	58.00 €~1,275.00 €	Mon 24 Feb 25
Simvastatin dimer impurity REF: 3D-IS27834CAS: 476305-24-5	Min. 95 Area-%	405.00 €~2,556.00 €	Mon 24 Feb 25
Acarbose EP Impurity G REF: 3D-IA175642CAS: 1013621-73-2	Min. 95%	To inquire	Mon 24 Feb 25
Sumatriptan EP Impurity A REF: 3D-FS175833CAS: 545338-89-4	Min. 95%	310.00 €~2,319.00 €	Mon 24 Feb 25
Trospium Chloride Related Compound A (Benzilic Acid) REF: 45-1699311CAS: 76-93-7	- - -	To inquire	Mon 24 Feb 25
7-Epi 10-desacetyl paclitaxel REF: 3D-IE22703CAS: 78454-17-8	Min. 95%	To inquire	Mon 24 Feb 25
Ezetimibe ketone REF: 3D-FE23217CAS: 191330-56-0	Min. 95%	To inquire	Mon 24 Feb 25
Norethindrone Related Compound B CIII (Estr-4-ene-3,17-dione) REF: 45-1470026CAS: 734-32-7	- - -	To inquire	Mon 24 Feb 25
N-Succinyl-L-tyrosine REF: 3D-IS27922CAS: 374816-32-7	Min. 95%	213.00 €~1,531.00 €	Mon 24 Feb 25
Isopropyl 2-hydroxy-2-phenylacetate REF: 3D-II156828CAS: 4118-51-8	Min. 95%	To inquire	Mon 24 Feb 25
PSI 7976 REF: 3D-IP102673CAS: 1190308-01-0	Min. 95%	436.00 €~2,606.00 €	Mon 24 Feb 25
2'-Hydroxy-3-phenylpropiophenone REF: 3D-IH24242CAS: 3516-95-8	Min. 95%	194.00 €~863.00 €	Mon 24 Feb 25
Modafinil S-enantiomer CIV ((S)-2-(Benzhydrylsulfinyl)acetamide) REF: 45-1445415CAS: 112111-47-4	- - -	To inquire	Mon 24 Feb 25
Exemestane Related Compound C CIII (androsta-1,4-diene-3,17-dione) REF: 45-1269083CAS: 897-06-3	- - -	To inquire	Mon 24 Feb 25
Atorvastatin lactam phenanthrene calcium salt impurity REF: 3D-IA18017CAS: 148127-12-2	Min. 95%	517.00 €~2,898.00 €	Mon 24 Feb 25
Desfluoro ezetimibe REF: 3D-FD21193CAS: 302781-98-2	Min. 95%	To inquire	Mon 24 Feb 25
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone REF: 3D-ID22170CAS: 4803-74-1	Min. 95%	172.00 €~802.00 €	Mon 24 Feb 25

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Zopiclone R-Isomer CIV ((-)-(5R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate)

Controlled Product

CAS:138680-08-7

Lactams, nesoi

Formula:

C₁₇H₁₇ClN₆O₃

Color and Shape:

Light Brown Solid

Molecular weight:

388.10507

Ref: 45-1729118

Estimated delivery in United States, on Monday 24 Feb 2025

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Oxycodone Related Compound C CII (codeinone)

Controlled Product

CAS:467-13-0

Alkaloids of opium and their derivatives, salts thereof

Formula:

C₁₈H₁₉NO₃

Color and Shape:

Powder

Molecular weight:

297.13649

Ref: 45-1485238

Estimated delivery in United States, on Monday 24 Feb 2025

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1-Fluoronaphthalene

CAS:321-38-0

1-Fluoronaphthalene is a polyunsaturated compound that is used in analytical chemistry for the determination of …

Formula:

C₁₀H₇F

Purity:

Min. 95%

Molecular weight:

146.16 g/mol

Ref: 3D-IF23445

1kg		723.00 €
50g		136.00 €
100g		192.00 €
250g		325.00 €
500g		452.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Roflumilast Impurity A

CAS:475271-62-6

Roflumilast impurity A is a metabolite of roflumilast. It is a drug product that is …

Formula:

C₁₆H₁₄Cl₂N₂O₃

Purity:

Min. 95%

Molecular weight:

353.2 g/mol

Ref: 3D-IR168438

10mg		310.00 €
25mg		472.00 €
50mg		646.00 €
100mg		986.00 €
250mg		1,275.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Simvastatin dimer impurity

CAS:476305-24-5

Simvastatin is a statin that reduces cholesterol synthesis by inhibiting the enzyme HMG-CoA reductase. Simvastatin …

Formula:

C₅₀H₇₆O₁₀

Purity:

Min. 95 Area-%

Color and Shape:

White Powder

Molecular weight:

837.13 g/mol

Ref: 3D-IS27834

1mg		818.00 €
2mg		1,153.00 €
5mg		2,556.00 €
250µg		405.00 €
500µg		574.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Acarbose EP Impurity G

CAS:1013621-73-2

Acarbose EP Impurity G is a pharmaceutical grade impurity that is used as a reference …

Purity:

Min. 95%

Ref: 3D-IA175642

10mg To inquire

Estimated delivery in United States, on Monday 24 Feb 2025

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Sumatriptan EP Impurity A

CAS:545338-89-4

Sumatriptan EP Impurity A is a metabolite of sumatriptan, a drug product that is used …

Formula:

C₂₇H₃₇N₅O₂S

Purity:

Min. 95%

Molecular weight:

495.68 g/mol

Ref: 3D-FS175833

1mg		310.00 €
2mg		436.00 €
5mg		740.00 €
10mg		1,160.00 €
25mg		2,319.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Trospium Chloride Related Compound A (Benzilic Acid)

CAS:76-93-7

Carboxylic acids w/ alcohol function but w/o other oxygen function and their derivatives, nesoi

Formula:

C₁₄H₁₂O₃

Color and Shape:

White Powder

Molecular weight:

228.07864

Ref: 45-1699311

Estimated delivery in United States, on Monday 24 Feb 2025

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7-Epi 10-desacetyl paclitaxel

CAS:78454-17-8

7-Epi 10-desacetyl paclitaxel is a prodrug of paclitaxel. It has a similar mechanism of action …

Formula:

C₄₅H₄₉NO₁₃

Purity:

Min. 95%

Color and Shape:

White Powder

Molecular weight:

811.87 g/mol

Ref: 3D-IE22703

5mg		286.00 €
10mg		420.00 €
25mg		598.00 €
50mg		854.00 €
100mg		1,339.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Ezetimibe ketone

CAS:191330-56-0

Ezetimibe ketone is a lipid-lowering agent that inhibits cholesterol absorption through the inhibition of Niemann-Pick …

Formula:

C₂₄H₁₉F₂NO₃

Purity:

Min. 95%

Color and Shape:

Powder

Molecular weight:

407.41 g/mol

Ref: 3D-FE23217

25mg		194.00 €
50mg		310.00 €
100mg		436.00 €
250mg		647.00 €
500mg		1,047.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Norethindrone Related Compound B CIII (Estr-4-ene-3,17-dione)

Controlled Product

CAS:734-32-7

Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function not elsewhere specified or included

Formula:

C₁₈H₂₄O₂

Color and Shape:

Powder

Molecular weight:

272.17763

Ref: 45-1470026

Estimated delivery in United States, on Monday 24 Feb 2025

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N-Succinyl-L-tyrosine

CAS:374816-32-7

N-Succinyl-L-tyrosine is a synthetic compound that is used as an impurity standard for the determination …

Formula:

C₁₃H₁₅NO₆

Purity:

Min. 95%

Color and Shape:

Light Blue To Blue Solid

Molecular weight:

281.26 g/mol

Ref: 3D-IS27922

1mg		213.00 €
2mg		341.00 €
5mg		498.00 €
10mg		813.00 €
25mg		1,531.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Isopropyl 2-hydroxy-2-phenylacetate

CAS:4118-51-8

Isopropyl 2-hydroxy-2-phenylacetate is an inorganic acid that is used as a solvent and as a …

Formula:

C₁₁H₁₄O₃

Purity:

Min. 95%

Molecular weight:

194.23 g/mol

Ref: 3D-II156828

1g		801.00 €
50mg		172.00 €
100mg		248.00 €
250mg		364.00 €
500mg		517.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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PSI 7976

CAS:1190308-01-0

PSI 7976 is an analog of the nucleophilic attack drug, ribavirin. PSI 7976 inhibits the …

Formula:

C₂₂H₂₉FN₃O₉P

Purity:

Min. 95%

Molecular weight:

529.45 g/mol

Ref: 3D-IP102673

1mg		582.00 €
2mg		863.00 €
5mg		1,507.00 €
10mg		2,551.00 €
500µg		436.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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2'-Hydroxy-3-phenylpropiophenone

CAS:3516-95-8

2'-Hydroxy-3-phenylpropiophenone is a nucleophile that is hydrogenated to form 2'-hydroxy-3-phenylpropionic acid. It is used as …

Formula:

C₁₅H₁₄O₂

Purity:

Min. 95%

Color and Shape:

Colourless To Pale Yellow Liquid

Molecular weight:

226.27 g/mol

Ref: 3D-IH24242

1kg		582.00 €
2kg		863.00 €
100g		194.00 €
250g		310.00 €
500g		436.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Modafinil S-enantiomer CIV ((S)-2-(Benzhydrylsulfinyl)acetamide)

Controlled Product

CAS:112111-47-4

Other aromatic organo-sulfur compounds (excluding pesticides)

Formula:

C₁₅H₁₅NO₂S

Color and Shape:

White Off-White Solid

Molecular weight:

273.08235

Ref: 45-1445415

Estimated delivery in United States, on Monday 24 Feb 2025

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Exemestane Related Compound C CIII (androsta-1,4-diene-3,17-dione)

Controlled Product

CAS:897-06-3

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₁₉H₂₄O₂

Color and Shape:

White Powder

Molecular weight:

284.17763

Ref: 45-1269083

Estimated delivery in United States, on Monday 24 Feb 2025

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Atorvastatin lactam phenanthrene calcium salt impurity

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Atorvastatin lactam phenanthrene calcium salt impurity

CAS:148127-12-2

Atorvastatin lactam phenanthrene calcium salt impurity is a high purity, custom synthesis drug product. It …

Formula:

C₆₆H₆₄CaF₂N₄O₁₂

Purity:

Min. 95%

Molecular weight:

1,183.31 g/mol

Ref: 3D-IA18017

1mg		801.00 €
2mg		1,160.00 €
5mg		1,855.00 €
10mg		2,898.00 €
500µg		517.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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Desfluoro ezetimibe

CAS:302781-98-2

Desfluoro ezetimibe is a synthetic cholesterol-lowering drug that inhibits intestinal cholesterol absorption. It is chemically …

Formula:

C₂₄H₂₂FNO₃

Purity:

Min. 95%

Color and Shape:

White To Off-White Solid

Molecular weight:

391.43 g/mol

Ref: 3D-FD21193

10mg		232.00 €
25mg		436.00 €
50mg		646.00 €
100mg		986.00 €
250mg		1,449.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone

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5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone

CAS:4803-74-1

5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone is a hydroxide that is obtained by the reflux of 4-hydroxybenzaldehyde with an alkali …

Formula:

C₁₇H₁₅NO₃

Purity:

Min. 95%

Molecular weight:

281.31 g/mol

Ref: 3D-ID22170

5g		172.00 €
10g		248.00 €
25g		363.00 €
50g		518.00 €
100g		802.00 €

Estimated delivery in United States, on Monday 24 Feb 2025

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