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
Roflumilast Related Compound D (3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzoic acid) REF: 45-1605056CAS: 162401-62-9	- - -	1,469.00 €	Tue 15 Oct 24
Primaquine Related Compound A (8-[(4-Aminopentyl)amino]-6-methoxyquinoline) REF: 45-1561518CAS: 525-61-1	- - -	1,439.00 €	Tue 15 Oct 24
Fentanyl Related Compound D (N-Phenyl-1-(phenylmethyl)-4-piperidinamine) REF: 45-1269946CAS: 1155-56-2	- - -	1,477.00 €	Tue 15 Oct 24
Glipizide Related Compound C (1-cyclohexyl-3-[[4-[2-[[(6-methylpyrazin-2-yl)carbonyl]amino]ethyl]phenyl]sulfonyl]urea) REF: 45-1292631CAS: 66375-96-0	- - -	1,371.00 €	Tue 15 Oct 24
Duloxetine Related Compound A ((R)-N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine hydrochloride) REF: 45-1229828CAS: 910138-96-4	- - -	1,371.00 €	Tue 15 Oct 24
Linezolid Related Compound C ((S)-5-(aminomethyl)-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one) REF: 45-1367592CAS: 168828-90-8	- - -	1,477.00 €	Tue 15 Oct 24
Dantrolene Related Compound B (5-(4-nitrophenyl)-2-furaldehyde-(2-carboxymethyl) semicarbazone) REF: 45-1163173CAS: 57268-33-4	- - -	1,477.00 €	Tue 15 Oct 24
Amlodipine Related Compound C (Dimethyl 4-(2-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate) REF: 45-1029534CAS: 43067-01-2	- - -	1,477.00 €	Tue 15 Oct 24
Mirtazapine Related Compound D (2-Methyl-1,2,3,4-tetrahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepin-10(14bH)-one) REF: 45-1444252CAS: 191546-97-1	- - -	1,371.00 €	Tue 15 Oct 24
Amitriptyline Related Compound A (dibenzosuberone) REF: 45-1029013CAS: 1210-35-1	- - -	1,477.00 €	Tue 15 Oct 24
Iodixanol Related Compound C (5-[Acetyl[3-[[3,5-bis[[(2,3-dihydroxypropyl)amino]carbonyl]-2,4,6-triiodophenyl]amino]-2-hydroxypropyl]amino]-N,N'-bis-(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide) REF: 45-1343540CAS: 171897-74-8	- - -	1,439.00 €	Tue 15 Oct 24
Cefadroxil Related Compound I ((6R,7R)-7-[(R)-2-amino-2-(4-hydroxyphenyl)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid) REF: 45-1097192CAS: 147103-94-4	- - -	1,371.00 €	Tue 15 Oct 24
Ribavirin Related Compound A (1-β-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxylic acid) REF: 45-1602717CAS: 39925-19-4	- - -	1,371.00 €	Tue 15 Oct 24
Quininone (Cinchonan-9-one, 6'-methoxy-, (8α)-) REF: 45-1597504CAS: 84-31-1	- - -	1,441.00 €	Tue 15 Oct 24
Sibutramine Related Compound A (N-{1-[1-(2-chlorophenyl)cyclobutyl]-3-methylbutyl}-N,N-dimethylamine hydrochloride) REF: 45-1612856	- - -	815.00 €	Tue 15 Oct 24
Tranylcypromine Related Compound B ((E)-3-Phenylallylamine hydrochloride) REF: 45-1672927CAS: 17480-08-9	- - -	1,405.00 €	Tue 15 Oct 24
Atenolol Related Compound A (2-(4-Hydroxyphenyl)acetamide) REF: 45-1044254CAS: 17194-82-0	- - -	1,222.00 €	Tue 15 Oct 24
Formoterol Related Compound C (N-(2-Hydroxy-5-(1-hydroxy-2-{[1-(4-methoxyphenyl)propan-2-yl]amino}ethyl)phenyl)acetamide fumarate) REF: 45-1042373	- - -	1,426.00 €	Tue 15 Oct 24
Sevoflurane Related Compound B (1,1,1,3,3,3-hexafluoro-2-methoxy-propane) REF: 45-1612572CAS: 13171-18-1	- - -	1,477.00 €	Tue 15 Oct 24
Bendamustine Related Compound D (4-{5-[(2-Chloroethyl)amino]-1-methyl-1H -benzimidazol-2-yl}butanoic acid hydrochloride) REF: 45-1065265CAS: 1797881-48-1	- - -	1,398.00 €	Tue 15 Oct 24

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Roflumilast Related Compound D (3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzoic acid)

CAS:162401-62-9

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides etc, nesoi

Formula:

C₁₂H₁₂F₂O₄

Color and Shape:

Yellow White Powder

Molecular weight:

258.07037

Ref: 45-1605056

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Primaquine Related Compound A (8-[(4-Aminopentyl)amino]-6-methoxyquinoline)

CAS:525-61-1

Compounds (excluding drugs and pesticides) containing a

Formula:

C₁₅H₂₁N₃O

Color and Shape:

Solid

Molecular weight:

259.16846

Ref: 45-1561518

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Fentanyl Related Compound D (N-Phenyl-1-(phenylmethyl)-4-piperidinamine)

CAS:1155-56-2

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₈H₂₂N₂

Color and Shape:

White Yellow Powder

Molecular weight:

266.1783

Ref: 45-1269946

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Glipizide Related Compound C (1-cyclohexyl-3-[[4-[2-[[(6-methylpyrazin-2-yl)carbonyl]amino]ethyl]p…

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Glipizide Related Compound C (1-cyclohexyl-3-[[4-[2-[[(6-methylpyrazin-2-yl)carbonyl]amino]ethyl]phenyl]sulfonyl]urea)

CAS:66375-96-0

Sulfonamides, nesoi

Formula:

C₂₁H₂₇N₅O₄S

Color and Shape:

White Off-White Powder

Molecular weight:

445.17838

Ref: 45-1292631

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Duloxetine Related Compound A ((R)-N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine hydrochloride)

CAS:910138-96-4

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₈H₁₉NOS·HCl

Color and Shape:

Off-White Solid

Molecular weight:

297.11874

Ref: 45-1229828

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Linezolid Related Compound C ((S)-5-(aminomethyl)-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one)

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Linezolid Related Compound C ((S)-5-(aminomethyl)-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one)

CAS:168828-90-8

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₄H₁₈FN₃O₃

Color and Shape:

White Off-White Light Yellow Powder

Molecular weight:

295.13322

Ref: 45-1367592

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Dantrolene Related Compound B (5-(4-nitrophenyl)-2-furaldehyde-(2-carboxymethyl) semicarbazone)

CAS:57268-33-4

Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure nesoi

Formula:

C₁₄H₁₂N₄O₆

Color and Shape:

Yellow Solid

Molecular weight:

332.07568

Ref: 45-1163173

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Amlodipine Related Compound C (Dimethyl 4-(2-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-di…

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Amlodipine Related Compound C (Dimethyl 4-(2-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate)

CAS:43067-01-2

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₇H₁₈ClNO₄

Color and Shape:

Off-White Yellow Crystalline Powder

Molecular weight:

335.09244

Ref: 45-1029534

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Mirtazapine Related Compound D (2-Methyl-1,2,3,4-tetrahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepin-10(14bH)-one)

CAS:191546-97-1

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

Formula:

C₁₇H₁₇N₃O

Color and Shape:

White Pale Yellow Solid

Molecular weight:

279.13716

Ref: 45-1444252

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Amitriptyline Related Compound A (dibenzosuberone)

CAS:1210-35-1

Aromatic ketones without other oxygen function, nesoi

Formula:

C₁₅H₁₂O

Color and Shape:

Pale Yellow Powder

Molecular weight:

208.08882

Ref: 45-1029013

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Iodixanol Related Compound C (5-[Acetyl[3-[[3,5-bis[[(2,3-dihydroxypropyl)amino]carbonyl]-2,4,6-triiodophenyl]amino]-2-hydroxypropyl]amino]-N,N'-bis-(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide)

CAS:171897-74-8

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₃₃H₄₂I₆N₆O₁₄

Color and Shape:

White Off-White Powder

Molecular weight:

1508.15

Ref: 45-1343540

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Cefadroxil Related Compound I ((6R,7R)-7-[(R)-2-amino-2-(4-hydroxyphenyl)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid)

CAS:147103-94-4

Aminoglycoside antibiotics

Formula:

C₁₆H₁₇N₃O₅S

Color and Shape:

Off-White Powder

Molecular weight:

363.08889

Ref: 45-1097192

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Ribavirin Related Compound A (1-β-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxylic acid)

CAS:39925-19-4

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₈H₁₁N₃O₆

Color and Shape:

White Off-White Powder

Molecular weight:

245.06479

Ref: 45-1602717

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Quininone (Cinchonan-9-one, 6'-methoxy-, (8α)-)

CAS:84-31-1

Alkaloids of cinchona (excluding quinine and its salts) and their derivatives; salts thereof

Formula:

C₂₀H₂₂N₂O₂

Color and Shape:

Yellow Beige Powder

Molecular weight:

322.16813

Ref: 45-1597504

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Sibutramine Related Compound A (N-{1-[1-(2-chlorophenyl)cyclobutyl]-3-methylbutyl}-N,N-dimethylamine hydrochloride)

Aromatic monoamines not elsewhere specified or included

Formula:

C₁₇H₂₆ClN·HCl·H₂O

Color and Shape:

White Crystalline Powder

Molecular weight:

334.3

Ref: 45-1612856

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Tranylcypromine Related Compound B ((E)-3-Phenylallylamine hydrochloride)

CAS:17480-08-9

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

Formula:

C₉H₁₁N·HCl

Color and Shape:

White Powder

Molecular weight:

133.08915

Ref: 45-1672927

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Atenolol Related Compound A (2-(4-Hydroxyphenyl)acetamide)

CAS:17194-82-0

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₈H₉NO₂

Color and Shape:

Light Cream Powder

Molecular weight:

151.06333

Ref: 45-1044254

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Formoterol Related Compound C (N-(2-Hydroxy-5-(1-hydroxy-2-{[1-(4-methoxyphenyl)propan-2-yl]amino}ethyl)phenyl)acetamide fumarate)

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

(C₂₀H₂₆N₂O₄)₂·C₄H₄O₄

Color and Shape:

Off-White Light Brown Solid

Molecular weight:

832.38947

Ref: 45-1042373

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Sevoflurane Related Compound B (1,1,1,3,3,3-hexafluoro-2-methoxy-propane)

CAS:13171-18-1

Ethers of monohydric alcohols, nesoi

Formula:

C₄H₄F₆O

Color and Shape:

Clear Colorless Liquid

Molecular weight:

182.01663

Ref: 45-1612572

Estimated delivery in United States, on Tuesday 15 Oct 2024

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Bendamustine Related Compound D (4-{5-[(2-Chloroethyl)amino]-1-methyl-1H -benzimidazol-2-yl}butanoic acid hydrochloride)

CAS:1797881-48-1

Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi

Formula:

C₁₄H₁₈ClN₃O₂HCl

Color and Shape:

Pink Solid

Molecular weight:

332.23

Ref: 45-1065265

Estimated delivery in United States, on Tuesday 15 Oct 2024

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