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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
Quetiapine Related Compound H (4-(Dibenzo[b,f][1,4]thiazepin-11-yl)-1-[2-(2-hydroxyethoxy)ethyl]piperazine 1-oxide)
REF: 45-1592792CAS: 1076199-40-0 		- - -1,407.00 €Fri 27 Dec 24
Glycopyrrolate Related Compound C (2-Cyclopentyl-2-hydroxy-2-phenylacetic acid)
REF: 45-1296042CAS: 427-49-6 		- - -1,477.00 €Fri 27 Dec 24
Latanoprost Related Compound D (Isopropyl (Z)-7-{(1R,2R,3R,5S)-2-[(R)-5-phenyl-3-(triethylsilyloxy)pentyl]-3,5-bis(triethylsilyloxy)cyclopentyl}hept-5-enoate)
REF: 45-1357522CAS: 477884-78-9 		- - -1,777.00 €Fri 27 Dec 24
Carteolol Related Compound F (5-(2-Hydroxy-3-methoxypropoxy)-3,4-dihydroquinolin-2(1H)-one)
REF: 45-1096859		- - -1,944.00 €Fri 27 Dec 24
Chloroquine Related Compound D (7-Chloro-4-{[4-(ethylamino)-1-methylbutyl] amino} quinoline)
REF: 45-1118350CAS: 1476-52-4 		- - -1,371.00 €Fri 27 Dec 24
Rivastigmine Related Compound D (3-Acetylphenyl ethyl(methyl)carbamate)
REF: 45-1604825CAS: 855300-09-3 		- - -1,371.00 €Fri 27 Dec 24
Cyclophosphamide Related Compound D (3-[2-(2-chloroethylamino)ethylamino]propyl dihydrogen phosphate dihydrochloride)
REF: 45-1157046CAS: 158401-51-5 		- - -1,477.00 €Fri 27 Dec 24
Modafinil Sulfone
REF: 45-1445392CAS: 118779-53-6 		- - -1,292.00 €Fri 27 Dec 24
Cyclobenzaprine Related Compound A (5-[3-(dimethylamino)propyl]-5H-dibenzo[a,d]-cyclohepten-5-ol)
REF: 45-1154514CAS: 18029-54-4 		- - -1,477.00 €Fri 27 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 €Fri 27 Dec 24
Valacyclovir Related Compound F (2-hydroxyethyl valinate para-toluenesulfonate salt)
REF: 45-1707883CAS: 86150-61-0 		- - -1,477.00 €Fri 27 Dec 24
Dalfampridine Related Compound C (1,3-Di(pyridin-4-yl)urea)
REF: 45-1162567CAS: 39642-87-0 		- - -1,308.00 €Fri 27 Dec 24
Lorazepam Related Compound B (2-Amino-2',5-dichlorobenzophenone)
REF: 45-1370338CAS: 2958-36-3 		- - -1,371.00 €Fri 27 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 €Fri 27 Dec 24
Triamterene Related Compound C (2,4-diamino-7-hydroxy-6-phenylpteridine)
REF: 45-1680030CAS: 19152-93-3 		- - -1,425.00 €Fri 27 Dec 24
Paclitaxel Related Compound B (10-deacetyl-7-epipaclitaxel)
REF: 45-1491354CAS: 78454-17-8 		- - -2,241.00 €Fri 27 Dec 24
Saquinavir Related Compound A (N-tert-butyl-decahydro-2-[2(R)-hydroxy-4-phenyl-3(S)-[[N-(2-quinolylcarbonyl)-D-asparaginyl]amino]butyl]-(4aS,8aS)-isoquinoline-3(S)-carboxamide)
REF: 45-1609831		- - -1,357.00 €Fri 27 Dec 24
Methyldopa Related Compound B ((S)-2-Amino-3-(4-methoxyphenyl)-2-methylpropanoic acid hydrochloride)
REF: 45-1427027CAS: 35026-10-9 		- - -1,442.00 €Fri 27 Dec 24
Adrenalone Hydrochloride
REF: 45-1011878CAS: 62-13-5 		- - -1,477.00 €Fri 27 Dec 24
Dorzolamide Related Compound B ((4RS,6SR)-4-(Ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride)
REF: 45-1225317CAS: 120279-37-0 		- - -1,477.00 €Fri 27 Dec 24
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Quetiapine Related Compound H (4-(Dibenzo[b,f][1,4]thiazepin-11-yl)-1-[2-(2-hydroxyethoxy)ethyl]pi…
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Quetiapine Related Compound H (4-(Dibenzo[b,f][1,4]thiazepin-11-yl)-1-[2-(2-hydroxyethoxy)ethyl]piperazine 1-oxide)

CAS:1076199-40-0
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C21H25N3O3S
Color and Shape:
Powder
Molecular weight:
399.16166

Ref: 45-1592792

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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Latanoprost Related Compound D (Isopropyl (Z)-7-{(1R,2R,3R,5S)-2-[(R)-5-phenyl-3-(triethylsilyloxy)pentyl]-3,5-bis(triethylsilyloxy)cyclopentyl}hept-5-enoate)

CAS:477884-78-9
Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues
Formula:
C44H82O5Si3
Color and Shape:
Yellow Liquid
Molecular weight:
774.54701

Ref: 45-1357522

Estimated delivery in United States, on Friday 27 Dec 2024
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Carteolol Related Compound F (5-(2-Hydroxy-3-methoxypropoxy)-3,4-dihydroquinolin-2(1H)-one)

Lactams not elsewhere specified or included
Formula:
C13H17NO4
Color and Shape:
White Off-White Powder
Molecular weight:
251.11576

Ref: 45-1096859

Estimated delivery in United States, on Friday 27 Dec 2024
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Chloroquine Related Compound D (7-Chloro-4-{[4-(ethylamino)-1-methylbutyl] amino} quinoline)

CAS:1476-52-4
Compounds (excluding drugs and pesticides) containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) …
Formula:
C16H22ClN3
Color and Shape:
Tan Powder
Molecular weight:
291.15023

Ref: 45-1118350

Estimated delivery in United States, on Friday 27 Dec 2024
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Rivastigmine Related Compound D (3-Acetylphenyl ethyl(methyl)carbamate)

CAS:855300-09-3
Aromatic cyclic amides (including cyclic carbamates) an
Formula:
C12H15NO3
Color and Shape:
White Powder
Molecular weight:
221.10519

Ref: 45-1604825

Estimated delivery in United States, on Friday 27 Dec 2024
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Cyclophosphamide Related Compound D (3-[2-(2-chloroethylamino)ethylamino]propyl dihydrogen phosphate dihydrochloride)

CAS:158401-51-5
Other acyclic polyamines and their derivatives; salts t
Formula:
C7H18ClN2O4P· 2HCl
Color and Shape:
White Off-White Powder
Molecular weight:
260.06927

Ref: 45-1157046

Estimated delivery in United States, on Friday 27 Dec 2024
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Modafinil Sulfone

CAS:118779-53-6
Other aromatic organo-sulfur compounds (excluding pesticides)
Formula:
C15H15NO3S
Color and Shape:
White Off-White Powder
Molecular weight:
289.07726

Ref: 45-1445392

Estimated delivery in United States, on Friday 27 Dec 2024
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Cyclobenzaprine Related Compound A (5-[3-(dimethylamino)propyl]-5H-dibenzo[a,d]-cyclohepten-5-ol)
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Cyclobenzaprine Related Compound A (5-[3-(dimethylamino)propyl]-5H-dibenzo[a,d]-cyclohepten-5-ol)

CAS:18029-54-4
Aromatic monoamines not elsewhere specified or included and their derivatives, salts therof
Formula:
C20H23NO
Color and Shape:
White Powder
Molecular weight:
293.17796

Ref: 45-1154514

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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Valacyclovir Related Compound F (2-hydroxyethyl valinate para-toluenesulfonate salt)

CAS:86150-61-0
Non-aromatic amino-compounds with oxygen function
Formula:
C7H15NO3·C7H8O3S
Color and Shape:
White Off-White Powder
Molecular weight:
161.10519

Ref: 45-1707883

Estimated delivery in United States, on Friday 27 Dec 2024
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Dalfampridine Related Compound C (1,3-Di(pyridin-4-yl)urea)

CAS:39642-87-0
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C11H10N4O
Color and Shape:
White Solid
Molecular weight:
214.08546

Ref: 45-1162567

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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Paclitaxel Related Compound B (10-deacetyl-7-epipaclitaxel)

CAS:78454-17-8
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C45H49O13N
Color and Shape:
White Off-White Powder
Molecular weight:
811.32039

Ref: 45-1491354

Estimated delivery in United States, on Friday 27 Dec 2024
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Saquinavir Related Compound A (N-tert-butyl-decahydro-2-[2(R)-hydroxy-4-phenyl-3(S)-[[N-(2-quinolylcarbonyl)-D-asparaginyl]amino]butyl]-(4aS,8aS)-isoquinoline-3(S)-carboxamide)

Compounds (excluding drugs and pesticides) containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) …
Formula:
C38H50N6O5
Color and Shape:
White Crystalline Powder
Molecular weight:
670.38427

Ref: 45-1609831

Estimated delivery in United States, on Friday 27 Dec 2024
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Methyldopa Related Compound B ((S)-2-Amino-3-(4-methoxyphenyl)-2-methylpropanoic acid hydrochloride)

CAS:35026-10-9
Aromatic amino-alcohol-phenols, aromatic amino-acid-phenols and other aromatic amino compounds with oxygen function
Formula:
C11H15NO3·HCl
Color and Shape:
Grey Powder
Molecular weight:
245.08187

Ref: 45-1427027

Estimated delivery in United States, on Friday 27 Dec 2024
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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

Estimated delivery in United States, on Friday 27 Dec 2024
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Dorzolamide Related Compound B ((4RS,6SR)-4-(Ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride)

CAS:120279-37-0
Sulfonamides, nesoi
Formula:
C10H16N2O4S3·HCl
Color and Shape:
White Solid
Molecular weight:
324.02722

Ref: 45-1225317

Estimated delivery in United States, on Friday 27 Dec 2024
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