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
Oxandrolone Related Compound C CIII (17,17-dimethyl-18-nor-2-oxa-5α-androst-13-en-3-one) REF: 45-1482036	- - -	To inquire	Tue 18 Mar 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 18 Mar 25
Trospium Chloride Related Compound A (Benzilic Acid) REF: 45-1699311CAS: 76-93-7	- - -	To inquire	Tue 18 Mar 25
Clarithromycin EP Impurity A REF: 3D-FC166203CAS: 124412-58-4	90%Nmr	683.00 €~3,649.00 €	Tue 18 Mar 25
Mycophenolate mofetil EP Impurity C REF: 3D-IM183780CAS: 2286278-51-9	Min. 95%	285.00 €~3,037.00 €	Tue 18 Mar 25
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone REF: 3D-ID22170CAS: 4803-74-1	Min. 95%	180.00 €~839.00 €	Tue 18 Mar 25
Hydrocodone Related Compound A CII (4-hydroxy-3-methoxy-17-methylmorphinan-6-one) REF: 45-1315012CAS: 847-86-9	- - -	To inquire	Tue 18 Mar 25
Dextroamphetamine Related Compound B CII (Phenyl acetone) REF: 45-1180026CAS: 103-79-7	- - -	To inquire	Tue 18 Mar 25
Fentanyl Related Compound E CII (N-Phenyl-1-(2-phenylethyl)-4-piperidinamine) REF: 45-1269957CAS: 21409-26-7	- - -	To inquire	Tue 18 Mar 25
Cefdinir impurity F REF: 3D-IC63666CAS: 1356842-10-8	Min. 95%	775.00 €~4,980.00 €	Tue 18 Mar 25
Zolpidem Impurities Mixture CIV REF: 45-1724951	- - -	To inquire	Tue 18 Mar 25
Pitavastatin N-oxide REF: 3D-IP145433CAS: 1611499-16-1	Min. 95%	143.00 €~745.00 €	Tue 18 Mar 25
Naloxone Related Compound D CII (4,5α-Epoxy-3,14-dihydroxy-17-(prop-2-enyl)morphinan-7-ene-6-one) REF: 45-1453049CAS: 26451-92-3	- - -	To inquire	Tue 18 Mar 25
Modafinil S-enantiomer CIV ((S)-2-(Benzhydrylsulfinyl)acetamide) REF: 45-1445415CAS: 112111-47-4	- - -	To inquire	Tue 18 Mar 25
Exemestane Related Compound C CIII (androsta-1,4-diene-3,17-dione) REF: 45-1269083CAS: 897-06-3	- - -	To inquire	Tue 18 Mar 25
Benzphetamine Related Compound A CIII ((R)-N-Benzyl-N-methyl-1-phenylpropan-2-amine hydrochloride) REF: 45-1059014CAS: 28646-36-8	- - -	To inquire	Tue 18 Mar 25
2-(2-Amino-5-bromobenzoyl)pyridine REF: 3D-IA17613CAS: 1563-56-0	Min. 95%	To inquire	Tue 18 Mar 25
Acarbose Impurity E REF: 3D-FA175652CAS: 1220983-28-7	Min. 95%	6,073.00 €~20,039.00 €	Tue 18 Mar 25
Apixaban Impurity 1 REF: 3D-IA176149CAS: 503614-91-3	Min. 95%	49.00 €~1,215.00 €	Tue 18 Mar 25
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	Tue 18 Mar 25

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Oxandrolone Related Compound C CIII (17,17-dimethyl-18-nor-2-oxa-5α-androst-13-en-3-one)

Controlled Product

Lactones nesoi

Formula:

C₁₉H₂₈O₂

Color and Shape:

Powder

Molecular weight:

288.42

Ref: 45-1482036

20mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 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

25mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 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

20mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Clarithromycin EP Impurity A

CAS:124412-58-4

Clarithromycin EP Impurity A is an analytical standard for clarithromycin. Clarithromycin EP Impurity A is …

Formula:

C₃₈H₆₉NO₁₄

Purity:

90%Nmr

Color and Shape:

Powder

Molecular weight:

763.95 g/mol

Ref: 3D-FC166203

1mg		1,074.00 €
2mg		1,609.00 €
5mg		2,434.00 €
10mg		3,649.00 €
500µg		683.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Mycophenolate mofetil EP Impurity C

CAS:2286278-51-9

Please enquire for more information about Mycophenolate mofetil EP Impurity C including the price, delivery …

Formula:

C₂₃H₃₁NO₇

Purity:

Min. 95%

Molecular weight:

433.5 g/mol

Ref: 3D-IM183780

1mg		542.00 €
2mg		775.00 €
5mg		1,033.00 €
10mg		1,519.00 €
25mg		3,037.00 €

Estimated delivery in United States, on Tuesday 18 Mar 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		180.00 €
10g		260.00 €
25g		381.00 €
50g		542.00 €
100g		839.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Hydrocodone Related Compound A CII (4-hydroxy-3-methoxy-17-methylmorphinan-6-one)

Controlled Product

CAS:847-86-9

Alkaloids of opium and their derivatives, salts thereof

Formula:

C₁₈H₂₃NO₃

Color and Shape:

White Powder

Molecular weight:

301.16779

Ref: 45-1315012

70mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Dextroamphetamine Related Compound B CII (Phenyl acetone)

Controlled Product

CAS:103-79-7

Phenylacetone (phenylpropan-2-one)

Formula:

C₉H₁₀O

Color and Shape:

Clear Pale Yellow Liquid

Molecular weight:

134.07316

Ref: 45-1180026

25mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Fentanyl Related Compound E CII (N-Phenyl-1-(2-phenylethyl)-4-piperidinamine)

Controlled Product

CAS:21409-26-7

4-anilino-n-phenethylpiperidine (anpp)

Formula:

C₁₉H₂₄N₂

Color and Shape:

White Light Brown Crystalline Powder

Molecular weight:

280.19395

Ref: 45-1269957

10mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Cefdinir impurity F

CAS:1356842-10-8

Cefdinir impurity F is an impurity of cefdinir that has been identified in some batches. …

Formula:

C₁₃H₁₁N₃O₆S

Purity:

Min. 95%

Molecular weight:

337.31 g/mol

Ref: 3D-IC63666

1mg		1,094.00 €
2mg		1,701.00 €
5mg		3,280.00 €
10mg		4,980.00 €
500µg		775.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Zolpidem Impurities Mixture CIV

Controlled Product

Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not …

Color and Shape:

Powder

Ref: 45-1724951

15mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Pitavastatin N-oxide

CAS:1611499-16-1

Pitavastatin N-oxide is a drug product that is an analytical standard and natural API impurity. …

Formula:

C₂₅H₂₄FNO₅

Purity:

Min. 95%

Molecular weight:

437.46 g/mol

Ref: 3D-IP145433

1mg		143.00 €
2mg		180.00 €
5mg		324.00 €
10mg		457.00 €
25mg		745.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Naloxone Related Compound D CII (4,5α-Epoxy-3,14-dihydroxy-17-(prop-2-enyl)morphinan-7-ene-6-one)

Controlled Product

CAS:26451-92-3

Alkaloids of opium and their derivatives, salts thereof, not elsewhere specified or included

Formula:

C₁₉H₁₉NO₄

Color and Shape:

Light Yellow Powder

Molecular weight:

325.13141

Ref: 45-1453049

25mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 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

30mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 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

15mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Benzphetamine Related Compound A CIII ((R)-N-Benzyl-N-methyl-1-phenylpropan-2-amine hydrochloride)

Controlled Product

CAS:28646-36-8

Aromatic monoamines not elsewhere specified or included and their derivatives, salts therof

Formula:

C₁₇H₂₁N·HCl

Color and Shape:

White Off-White Powder

Molecular weight:

275.14408

Ref: 45-1059014

30mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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2-(2-Amino-5-bromobenzoyl)pyridine

CAS:1563-56-0

2-(2-Amino-5-bromobenzoyl)pyridine (2ABBP) is a chemical compound with the molecular formula C10H7BrN3. It is a glucuronide …

Formula:

C₁₂H₉BrN₂O

Purity:

Min. 95%

Molecular weight:

277.12 g/mol

Ref: 3D-IA17613

10g		180.00 €
25g		260.00 €
50g		381.00 €
100g		543.00 €
250g		905.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Acarbose Impurity E

CAS:1220983-28-7

Acarbose Impurity E is an impurity found in acarbose. It is a natural, API impurity …

Purity:

Min. 95%

Ref: 3D-FA175652

10mg		6,073.00 €
25mg		11,690.00 €
50mg		20,039.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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Apixaban Impurity 1

CAS:503614-91-3

Apixaban Impurity 1 is an impurity found in Apixaban, a drug used for the prevention …

Purity:

Min. 95%

Ref: 3D-IA176149

1kg		1,215.00 €
50g		180.00 €
100g		284.00 €
250g		491.00 €
500g		775.00 €

Estimated delivery in United States, on Tuesday 18 Mar 2025

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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

10mg To inquire

Estimated delivery in United States, on Tuesday 18 Mar 2025

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