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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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BrandProduct dataPurityPrice rangeEstimated delivery
Palonosetron Related Compound B ((3S)-3-(1-Oxo-5,6-dihydro-1H-benzo[de]isoquinolin-2(4H)-yl)quinuclidine 1-oxide)
REF: 45-1492233CAS: 1021456-82-5 		- - -1,477.00 €Tue 03 Dec 24
Cefprozil (E)-Isomer
REF: 45-1098049CAS: 111900-24-4 		- - -1,441.00 €Tue 03 Dec 24
Rivastigmine Related Compound F (3-Vinylphenyl ethyl(methyl)carbamate)
REF: 45-1604961CAS: 1346602-84-3 		- - -1,477.00 €Tue 03 Dec 24
Verapamil Related Compound A (3,4-Dimethoxy-α-[3-(methylamino)propyl]-α-(1-methylethyl)-benzeneacetonitrile monohydrochloride)
REF: 45-1711304CAS: 67775-97-7 		- - -1,371.00 €Tue 03 Dec 24
Diluted Isosorbide Mononitrate Related Compound A (1,4:3,6-Dianhydro-D-glucitol 2-nitrate in lactose)
REF: 45-1353113CAS: 16106-20-0 		- - -1,596.00 €Tue 03 Dec 24
Cilostazol Related Compound B (6-[4-(1-Cyclohexyl-1H-tetrazol-5-yl)-butoxy]-1H-quinolin-2-one)
REF: 45-1134175CAS: 73963-62-9 		- - -1,371.00 €Tue 03 Dec 24
Adrenalone Hydrochloride
REF: 45-1011878CAS: 62-13-5 		- - -1,477.00 €Tue 03 Dec 24
Triamterene Related Compound C (2,4-diamino-7-hydroxy-6-phenylpteridine)
REF: 45-1680030CAS: 19152-93-3 		- - -1,425.00 €Tue 03 Dec 24
Aripiprazole Related Compound H (7-(4-{4-[4-(2,3-dichlorophenyl)piperazin-1-yl]butoxy}butoxy)-3,4-dihydroquinolin-2(1H)-one)
REF: 45-1042714		- - -1,357.00 €Tue 03 Dec 24
Lorazepam Related Compound B (2-Amino-2',5-dichlorobenzophenone)
REF: 45-1370338CAS: 2958-36-3 		- - -1,371.00 €Tue 03 Dec 24
Zaleplon Related Compound B (N-[3-(3-Cyanopyrazolo[1,5-α]pyrimidin-5-yl)phenyl]-N-ethylacetamide)
REF: 45-1724372CAS: 478081-98-0 		- - -1,371.00 €Tue 03 Dec 24
Glycopyrrolate Related Compound C (2-Cyclopentyl-2-hydroxy-2-phenylacetic acid)
REF: 45-1296042CAS: 427-49-6 		- - -1,477.00 €Tue 03 Dec 24
Furosemide Related Compound A (2-Chloro-4-N-furfurylamino-5-sulfamoylbenzoic Acid)
REF: 45-1287020CAS: 4818-59-1 		- - -1,477.00 €Tue 03 Dec 24
Selegiline Related Compound D ((R)-N-(1-Phenylpropan-2-yl)prop-2-yn-1-amine hydrochloride)
REF: 45-1611944CAS: 115586-38-4 		- - -1,927.00 €Tue 03 Dec 24
Dopamine Related Compound C (2-(3,4-Dimethoxyphenyl)ethan-1-amine)
REF: 45-1225237CAS: 120-20-7 		- - -1,733.00 €Tue 03 Dec 24
Phenylephrine Related Compound E (2-[Benzyl(methyl)amino]-1-(3-hydroxyphenyl)ethan-1-one hydrochloride)
REF: 45-1533046CAS: 71786-67-9 		- - -1,477.00 €Tue 03 Dec 24
Mirtazapine Related Compound C (2-Methyl-3,4,10,14b-tetrahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepin-1(2H)-one)
REF: 45-1444241CAS: 191546-96-0 		- - -1,477.00 €Tue 03 Dec 24
Isomalathion (Diethyl 2-{[methoxy(methylthio)phosphoryl]thio}succinate)
REF: 45-1349604CAS: 3344-12-5 		- - -1,292.00 €Tue 03 Dec 24
Azelastine Related Compound F (4-[4-(4-Chlorobenzyl)-1-oxophthalazin-2(1H)-yl]-1-methylazepane 1-oxide)
REF: 45-1046213CAS: 640279-88-5 		- - -1,292.00 €Tue 03 Dec 24
Tiotropium Related Compound H ((2RS,3aSR,5RS,6RS,6aRS)-6-Hydroxy-4,4-dimethylhexahydro-2H-2,5-methanofuro[3,2-b]pyrrol-4-ium bromide)
REF: 45-1667632		- - -2,587.00 €Tue 03 Dec 24
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Palonosetron Related Compound B ((3S)-3-(1-Oxo-5,6-dihydro-1H-benzo[de]isoquinolin-2(4H)-yl)quinuclidine 1-oxide)

CAS:1021456-82-5
Lactams not elsewhere specified or included
Formula:
C19H22N2O2
Color and Shape:
Yellow Powder
Molecular weight:
310.16813

Ref: 45-1492233

Estimated delivery in United States, on Tuesday 3 Dec 2024
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Cefprozil (E)-Isomer

CAS:111900-24-4
Antibiotics nesoi
Formula:
C18H19N3O5S·H2O
Color and Shape:
Yellow Powder
Molecular weight:
389.10454

Ref: 45-1098049

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Rivastigmine Related Compound F (3-Vinylphenyl ethyl(methyl)carbamate)

CAS:1346602-84-3
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C12H15NO2
Color and Shape:
Colorless Liquid
Molecular weight:
205.11028

Ref: 45-1604961

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Verapamil Related Compound A (3,4-Dimethoxy-α-[3-(methylamino)propyl]-α-(1-methylethyl)-benzeneacetonitrile monohydrochloride)

CAS:67775-97-7
Nitrile function compounds, not elsewhere specified or
Formula:
C17H26N2O2·HCl
Color and Shape:
White Powder
Molecular weight:
290.19943

Ref: 45-1711304

Estimated delivery in United States, on Tuesday 3 Dec 2024
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Diluted Isosorbide Mononitrate Related Compound A (1,4:3,6-Dianhydro-D-glucitol 2-nitrate in lactose)

CAS:16106-20-0
Heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C6H9NO6
Color and Shape:
White Powder
Molecular weight:
191.04299

Ref: 45-1353113

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Cilostazol Related Compound B (6-[4-(1-Cyclohexyl-1H-tetrazol-5-yl)-butoxy]-1H-quinolin-2-one)

CAS:73963-62-9
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C20H25N5O2
Color and Shape:
White Brown Powder
Molecular weight:
367.20083

Ref: 45-1134175

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Adrenalone Hydrochloride

CAS:62-13-5
Unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, nesoi
Formula:
C9H11NO3·HCl
Color and Shape:
White Beige Powder
Molecular weight:
217.05057

Ref: 45-1011878

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Triamterene Related Compound C (2,4-diamino-7-hydroxy-6-phenylpteridine)

CAS:19152-93-3
Aromatic or modified aromatic drugs with nitrogen heter
Formula:
C12H10N6O
Color and Shape:
Yellow Crystalline Powder
Molecular weight:
254.09161

Ref: 45-1680030

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Aripiprazole Related Compound H (7-(4-{4-[4-(2,3-dichlorophenyl)piperazin-1-yl]butoxy}butoxy)-3,4-dihydroquinolin-2(1H)-one)

Lactams, nesoi
Formula:
C27H35Cl2N3O3
Color and Shape:
White Pale Yellow Crystalline Powder
Molecular weight:
519.20555

Ref: 45-1042714

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Lorazepam Related Compound B (2-Amino-2',5-dichlorobenzophenone)

CAS:2958-36-3
Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; …
Formula:
C13H9Cl2NO
Color and Shape:
Yellow Crystalline Powder
Molecular weight:
265.00612

Ref: 45-1370338

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Zaleplon Related Compound B (N-[3-(3-Cyanopyrazolo[1,5-α]pyrimidin-5-yl)phenyl]-N-ethylacetamide)

CAS:478081-98-0
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C17H15N5O
Color and Shape:
Light Yellow Yellow Green Powder
Molecular weight:
305.12766

Ref: 45-1724372

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Glycopyrrolate Related Compound C (2-Cyclopentyl-2-hydroxy-2-phenylacetic acid)

CAS:427-49-6
Carboxylic acids w/ alcohol function but w/o other oxygen function and their derivatives, nesoi
Formula:
C13H16O3
Color and Shape:
White Off-White Powder
Molecular weight:
220.10994

Ref: 45-1296042

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Furosemide Related Compound A (2-Chloro-4-N-furfurylamino-5-sulfamoylbenzoic Acid)

CAS:4818-59-1
Sulfonamides, nesoi
Formula:
C12H11ClN2O5S
Color and Shape:
White Off-White Powder
Molecular weight:
330.00772

Ref: 45-1287020

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Selegiline Related Compound D ((R)-N-(1-Phenylpropan-2-yl)prop-2-yn-1-amine hydrochloride)
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Selegiline Related Compound D ((R)-N-(1-Phenylpropan-2-yl)prop-2-yn-1-amine hydrochloride)

CAS:115586-38-4
Aromatic monoamines and their derivatives, salts thereof, nesoi
Formula:
C12H15N·HCl
Color and Shape:
White Off-White Powder
Molecular weight:
209.09713

Ref: 45-1611944

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Dopamine Related Compound C (2-(3,4-Dimethoxyphenyl)ethan-1-amine)

CAS:120-20-7
Amino-naphthols and other amino-phenols, their ethers and esters, other than those cont more than one …
Formula:
C10H15NO2
Color and Shape:
Yellow Brown Liquid
Molecular weight:
181.11028

Ref: 45-1225237

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Phenylephrine Related Compound E (2-[Benzyl(methyl)amino]-1-(3-hydroxyphenyl)ethan-1-one hydrochloride)

CAS:71786-67-9
Aromatic amino-alcohol-phenols, aromatic amino-acid-phenols and other aromatic amino compounds with oxygen function
Formula:
C16H17NO2·HCl
Color and Shape:
Grey To White Powder
Molecular weight:
291.10261

Ref: 45-1533046

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

CAS:191546-96-0
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C17H17N3O
Color and Shape:
White Off-White Crystalline Powder
Molecular weight:
279.13716

Ref: 45-1444241

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Isomalathion (Diethyl 2-{[methoxy(methylthio)phosphoryl]thio}succinate)

CAS:3344-12-5
Organo-sulfur compounds, nesoi
Formula:
C10H19O6PS2
Color and Shape:
Colorless Clear Liquid
Molecular weight:
330.03607

Ref: 45-1349604

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Azelastine Related Compound F (4-[4-(4-Chlorobenzyl)-1-oxophthalazin-2(1H)-yl]-1-methylazepane 1-oxide)

CAS:640279-88-5
Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi
Formula:
C22H24ClN3O2
Color and Shape:
White Solid
Molecular weight:
397.1557

Ref: 45-1046213

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Tiotropium Related Compound H ((2RS,3aSR,5RS,6RS,6aRS)-6-Hydroxy-4,4-dimethylhexahydro-2H-2,5-methanofuro[3,2-b]pyrrol-4-ium bromide)

Heterocyclic compounds with nitrogen hetero-atom(s) only, excluding aromatic or modified aromatic
Formula:
C9H16BrNO2
Color and Shape:
White Powder
Molecular weight:
249.03644

Ref: 45-1667632

Estimated delivery in United States, on Tuesday 3 Dec 2024
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