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
(Z)-N'-Methylmeloxicam ((Z)-N-(3,5-dimethylthiazol-2(3H)-ylidene)-4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxamide 1,1-dioxide) REF: 45-1379456CAS: 1145656-36-5	- - -	1,371.00 €	Wed 04 Dec 24
Ziprasidone Related Compound C (5,5'-Bis(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6,6'-dichloro-3-hydroxy-3,3'-biindoline-2,2'-dione) REF: 45-1724441	- - -	1,552.00 €	Wed 04 Dec 24
Carisoprodol Related Compound A (2-hydroxymethyl-2-methylpentyl carbamate) REF: 45-1096597CAS: 1471-56-3	- - -	1,477.00 €	Wed 04 Dec 24
Ethosuximide Related Compound A (2-Ethyl-2-methylsuccinic acid) REF: 45-1264013CAS: 631-31-2	- - -	1,116.00 €	Wed 04 Dec 24
Norfloxacin Related Compound H (7-[4-(ethoxycarbonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid) REF: 45-1471583CAS: 105440-01-5	- - -	1,477.00 €	Wed 04 Dec 24
Oxaliplatin Related Compound F ([SP-4-2-(1R-trans)]-(1,2-cyclohexanediamine-N,N') diiodidoplatinum(II)) REF: 45-1481260CAS: 66845-32-7	- - -	To inquire	Wed 04 Dec 24
Cetirizine Related Compound C (2-(2-{4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl}ethoxy)acetamide) REF: 45-1102952CAS: 83881-37-2	- - -	1,477.00 €	Wed 04 Dec 24
Citalopram Related Compound H (1-(4'-fluorophenyl)-1-(3-dimethylaminopropyl)-5-bromophthalane hydrobromide) REF: 45-1134222CAS: 479065-02-6	- - -	1,371.00 €	Wed 04 Dec 24
Desacetyl Diltiazem Hydrochloride REF: 45-1171706CAS: 75472-91-2	- - -	1,511.00 €	Wed 04 Dec 24
Lansoprazole Related Compound B (2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-pyridin-2-yl]methyl]sulfanyl]-1H-benzimidazole monohydrate) REF: 45-1356931CAS: 1288338-69-1	- - -	1,555.00 €	Wed 04 Dec 24
Triamterene Related Compound A (2,4,6-triamino-5-nitrosopyrimidine) REF: 45-1680018CAS: 1006-23-1	- - -	1,477.00 €	Wed 04 Dec 24
Testosterone Cypionate Related Compound A (Androst-4-en-3,6-dione-17β-yl 3-cyclopentylpropanoate) REF: 45-1647012	- - -	887.00 €	Wed 04 Dec 24
Metaxalone Related Compound B (1-amino-3-(3,5-dimethylphenoxy)propan-2-ol) REF: 45-1396168CAS: 66766-07-2	- - -	1,441.00 €	Wed 04 Dec 24
Doxorubicinone ((8S,10S)-6,8,10,11-Tetrahydroxy-8-(hydroxyacetyl)-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione) REF: 45-1225758CAS: 24385-10-2	- - -	2,802.00 €	Wed 04 Dec 24
Verapamil Related Compound B (4-[(3,4-Dimethoxyphenethyl)(methyl)amino]-2-(3,4-dimethoxyphenyl)-2-isopropylbutanenitrile hydrochloride) REF: 45-1711406CAS: 1794-55-4	- - -	1,477.00 €	Wed 04 Dec 24
Mirtazapine Related Compound B (1,2,3,4,10,14b-Hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine 2-oxide monohydrate) REF: 45-1444235CAS: 155172-12-6	- - -	1,439.00 €	Wed 04 Dec 24
Voriconazole Related Compound A ((2RS, 3RS)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) REF: 45-1718019CAS: 137330-52-0	- - -	1,371.00 €	Wed 04 Dec 24
Olopatadine Related Compound C (11-Oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl acetic acid) REF: 45-1478436CAS: 55453-87-7	- - -	1,371.00 €	Wed 04 Dec 24
Inamrinone Related Compound B (2-Hydroxy-N-(6-oxo-1,6-dihydro-[3,4'-bipyridin]-5-yl)propanamide) REF: 45-1034341	- - -	775.00 €	Wed 04 Dec 24
Atenolol Related Compound B (2-[4-(2,3-Dihydroxypropoxy)phenyl]acetamide) REF: 45-1044265CAS: 61698-76-8	- - -	1,222.00 €	Wed 04 Dec 24

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(Z)-N'-Methylmeloxicam ((Z)-N-(3,5-dimethylthiazol-2(3H)-ylidene)-4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxamide 1,1-dioxide)

CAS:1145656-36-5

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

Formula:

C₁₅H₁₅N₃O₄S₂

Color and Shape:

Powder

Molecular weight:

365.0504

Ref: 45-1379456

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Ziprasidone Related Compound C (5,5'-Bis(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6,6'-dichloro-3-hydroxy-3,3'-biindoline-2,2'-dione)

Compounds containing a benzothiazole ring-system (wheth

Formula:

C₄₂H₄₀Cl₂N₈O₃S₂

Color and Shape:

Light Pink Powder

Molecular weight:

839.85

Ref: 45-1724441

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Carisoprodol Related Compound A (2-hydroxymethyl-2-methylpentyl carbamate)

CAS:1471-56-3

Acyclic amides (including acyclic carbamates) and their derivatives and salts thereof, nesoi

Formula:

C₈H₁₇NO₃

Color and Shape:

White Powder

Molecular weight:

175.12084

Ref: 45-1096597

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Ethosuximide Related Compound A (2-Ethyl-2-methylsuccinic acid)

CAS:631-31-2

Acyclic polycarboxylic acids and their anhydrides, halides, peroxides and their derivatives, nesoi

Formula:

C₇H₁₂O₄

Color and Shape:

White Powder

Molecular weight:

160.07356

Ref: 45-1264013

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Norfloxacin Related Compound H (7-[4-(ethoxycarbonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid)

CAS:105440-01-5

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

Formula:

C₁₉H₂₂FN₃O₅

Color and Shape:

Off-White Powder

Molecular weight:

391.15435

Ref: 45-1471583

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Oxaliplatin Related Compound F ([SP-4-2-(1R-trans)]-(1,2-cyclohexanediamine-N,N') diiodidoplatinum(II))

CAS:66845-32-7

Inorganic or organic compounds of precious metals, whet

Formula:

C₆H₁₄N₂I₂Pt

Color and Shape:

Powder

Molecular weight:

562.88943

Ref: 45-1481260

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Cetirizine Related Compound C (2-(2-{4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl}ethoxy)acetamide)

CAS:83881-37-2

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

Formula:

C₂₁H₂₆ClN₃O₂

Color and Shape:

Powder

Molecular weight:

387.17135

Ref: 45-1102952

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Citalopram Related Compound H (1-(4'-fluorophenyl)-1-(3-dimethylaminopropyl)-5-bromophthalane hydrobromide)

CAS:479065-02-6

Aromatic pesticides with oxygen hetero-atom(s) only ne

Formula:

C₁₉H₂₁BrFNO·HBr

Color and Shape:

Off-White Powder

Molecular weight:

377.07906

Ref: 45-1134222

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Desacetyl Diltiazem Hydrochloride

CAS:75472-91-2

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

Formula:

C₂₀H₂₄N₂O₃S·HCl

Color and Shape:

White Solid Crystalline Powder

Molecular weight:

372.15076

Ref: 45-1171706

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Lansoprazole Related Compound B (2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-pyridin-2-yl]methyl]sulfanyl]-1H-benzimidazole monohydrate)

CAS:1288338-69-1

Compounds containing an unfused pyridine ring in the structure, nesoi

Formula:

C₁₆H₁₄F₃N₃OS·H₂O

Color and Shape:

Brown Crystalline Powder

Molecular weight:

353.08097

Ref: 45-1356931

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Triamterene Related Compound A (2,4,6-triamino-5-nitrosopyrimidine)

CAS:1006-23-1

Compounds containing a pyrimidine ring (whether or not

Formula:

C₄H₆N₆O

Color and Shape:

Red Pink Crystalline Powder

Molecular weight:

154.06031

Ref: 45-1680018

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Testosterone Cypionate Related Compound A (Androst-4-en-3,6-dione-17β-yl 3-cyclopentylpropanoate)

Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, …

Formula:

C₂₇H₃₈O₄

Color and Shape:

Off-White Solid

Molecular weight:

426.27701

Ref: 45-1647012

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Metaxalone Related Compound B (1-amino-3-(3,5-dimethylphenoxy)propan-2-ol)

CAS:66766-07-2

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

Formula:

C₁₁H₁₇NO₂

Color and Shape:

White Powder

Molecular weight:

195.12593

Ref: 45-1396168

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Doxorubicinone ((8S,10S)-6,8,10,11-Tetrahydroxy-8-(hydroxyacetyl)-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione)

CAS:24385-10-2

Other quinones

Formula:

C₂₁H₁₈O₉

Color and Shape:

Orange Red Powder

Molecular weight:

414.09508

Ref: 45-1225758

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Verapamil Related Compound B (4-[(3,4-Dimethoxyphenethyl)(methyl)amino]-2-(3,4-dimethoxyphenyl)-2-isopropylbutanenitrile hydrochloride)

CAS:1794-55-4

Nitrile function compounds, not elsewhere specified or included

Formula:

C₂₆H₃₆N₂O₄·HCl

Color and Shape:

White Crystalline Powder

Molecular weight:

440.26751

Ref: 45-1711406

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Mirtazapine Related Compound B (1,2,3,4,10,14b-Hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine 2-oxide monohydrate)

CAS:155172-12-6

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

Formula:

C₁₇H₁₉N₃O·H₂O

Color and Shape:

Off-White Powder

Molecular weight:

299.36

Ref: 45-1444235

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Voriconazole Related Compound A ((2RS, 3RS)-2-(2,4-Difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)

CAS:137330-52-0

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

Formula:

C₁₆H₁₄F₃N₅O

Color and Shape:

Light Yellow Powder

Molecular weight:

349.11504

Ref: 45-1718019

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Olopatadine Related Compound C (11-Oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl acetic acid)

CAS:55453-87-7

Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi

Formula:

C₁₆H₁₂O₄

Color and Shape:

Light Yellow Powder

Molecular weight:

268.07356

Ref: 45-1478436

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Inamrinone Related Compound B (2-Hydroxy-N-(6-oxo-1,6-dihydro-[3,4'-bipyridin]-5-yl)propanamide)

Lactams not elsewhere specified or included

Formula:

C₁₃H₁₃N₃O₃

Color and Shape:

Tan Powder

Molecular weight:

259.09569

Ref: 45-1034341

Estimated delivery in United States, on Wednesday 4 Dec 2024

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Atenolol Related Compound B (2-[4-(2,3-Dihydroxypropoxy)phenyl]acetamide)

CAS:61698-76-8

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

Formula:

C₁₁H₁₅NO₄

Color and Shape:

White Powder

Molecular weight:

225.10011

Ref: 45-1044265

Estimated delivery in United States, on Wednesday 4 Dec 2024

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