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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
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Uracil
REF: 45-1705753CAS: 66-22-8 		- - -444.00 €Fri 28 Feb 25
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Potassium Ferrocyanide
REF: 45-1548269CAS: 14459-95-1 		- - -736.00 €Fri 28 Feb 25
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Azacitidine Related Compound B (1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose)
REF: 45-1045541CAS: 6974-32-9 		- - -1,371.00 €Fri 28 Feb 25
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Azelastine Related Compound E (3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one)
REF: 45-1046202		- - -1,441.00 €Fri 28 Feb 25
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Diethyltoluamide Related Compound A (N,N-Diethyl-4-toluamide)
REF: 45-1197018CAS: 2728-05-4 		- - -1,552.00 €Fri 28 Feb 25
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Transplatin
REF: 45-1672803CAS: 14913-33-8 		- - -To inquireFri 28 Feb 25
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Amrinone Related Compound A (5-carboxamide[3,4'-bipyridin]-6(1H)-one)
REF: 45-1034320CAS: 62749-46-6 		- - -775.00 €Fri 28 Feb 25
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Loratadine Related Compound A (8-Chloro-5,6-dihydro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine)
REF: 45-1370280CAS: 100643-71-8 		- - -1,371.00 €Fri 28 Feb 25
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Nepafenac Related Compound A (2-{2-Amino-3-[hydroxy(phenyl)methyl]phenyl}acetamide)
REF: 45-1460328CAS: 1246956-18-2 		- - -1,292.00 €Fri 28 Feb 25
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Pyridostigmine Related Compound B (3-Hydroxy-1-methylpyridin-1-ium bromide)
REF: 45-1586031CAS: 31034-86-3 		- - -1,441.00 €Fri 28 Feb 25
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Amoxicillin Related Compound C ((4S)-2-[5-(4-hydroxyphenyl)-3,6-dioxopiperazin-2-yl]-5,5-dimethylthiazolidine-4-carboxylic acid)
REF: 45-1031536CAS: 94659-47-9 		- - -1,477.00 €Fri 28 Feb 25
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Flavoxate Related Compound B (Methyl 3-methyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate)
REF: 45-1270720CAS: 90101-87-4 		- - -1,477.00 €Fri 28 Feb 25
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Felbamate Related Compound A (3-Hydroxy-2-phenylpropyl carbamate)
REF: 45-1269323CAS: 25451-53-0 		- - -1,439.00 €Fri 28 Feb 25
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Melengestrol Acetate Related Compound B (6,16-Dimethylene-3,20-dioxopregn-4-en-17-yl acetate)
REF: 45-1379276CAS: 80097-73-0 		- - -1,441.00 €Fri 28 Feb 25
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Spironolactone Related Compound D ((2'R)-7α-(Acetyldisulfanyl)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione)
REF: 45-1619040		- - -1,442.00 €Fri 28 Feb 25
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Carbidopa Related Compound A (3-O-Methylcarbidopa)
REF: 45-1095517CAS: 85933-19-3 		- - -1,477.00 €Fri 28 Feb 25
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Calcipotriene Related Compound C ((5E,7E,22E,24S)-24-Cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β,24-triol)
REF: 45-1086152CAS: 113082-99-8 		- - -3,219.00 €Fri 28 Feb 25
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Diphenhydramine N-Oxide (2-(benzhydryloxy)-N,N-dimethylethan-1-amine oxide hydrochloride)
REF: 45-1218050CAS: 13168-00-8 		- - -1,477.00 €Fri 28 Feb 25
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Aripiprazole Related Compound C (1-(2,3-dichlorophenyl)piperazine hydrochloride)
REF: 45-1042656CAS: 119532-26-2 		- - -1,292.00 €Fri 28 Feb 25
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Nitrofurfural Diacetate
REF: 45-1465503CAS: 92-55-7 		- - -1,477.00 €Fri 28 Feb 25
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Uracil

CAS:66-22-8
Compounds containing a pyrimidine ring (whether or not
Formula:
C4H4N2O2
Color and Shape:
White Off-White Powder
Molecular weight:
112.02728

Ref: 45-1705753

15mg444.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Potassium Ferrocyanide

CAS:14459-95-1
Complex cyanides
Formula:
K4Fe(CN)6·3H2O
Color and Shape:
Yellow Crystals
Molecular weight:
421.8399

Ref: 45-1548269

25mg736.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Azacitidine Related Compound B (1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose)

CAS:6974-32-9
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C28H24O9
Color and Shape:
Powder
Molecular weight:
504.14203

Ref: 45-1045541

15mg1,371.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Azelastine Related Compound E (3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one)

Lactones nesoi
Formula:
C15H9ClO2
Color and Shape:
Powder
Molecular weight:
256.02911

Ref: 45-1046202

20mg1,441.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Diethyltoluamide Related Compound A (N,N-Diethyl-4-toluamide)

CAS:2728-05-4
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C12H17NO
Color and Shape:
White Crystals
Molecular weight:
191.13101

Ref: 45-1197018

25mg1,552.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Transplatin

CAS:14913-33-8
Inorganic or organic compounds of precious metals, whether or not chemically defined, or amalgams of …
Formula:
Cl2H6N2Pt
Color and Shape:
Light Yellow Powder
Molecular weight:
300.05

Ref: 45-1672803

25mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Amrinone Related Compound A (5-carboxamide[3,4'-bipyridin]-6(1H)-one)
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Amrinone Related Compound A (5-carboxamide[3,4'-bipyridin]-6(1H)-one)

CAS:62749-46-6
Lactams, nesoi
Formula:
C11H9N3O2
Color and Shape:
Powder
Molecular weight:
215.06948

Ref: 45-1034320

100mg775.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Loratadine Related Compound A (8-Chloro-5,6-dihydro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine)

CAS:100643-71-8
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C19H19ClN2
Color and Shape:
White Off-White Crystalline Powder
Molecular weight:
310.12368

Ref: 45-1370280

15mg1,371.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Nepafenac Related Compound A (2-{2-Amino-3-[hydroxy(phenyl)methyl]phenyl}acetamide)

CAS:1246956-18-2
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C15H16N2O2
Color and Shape:
White Solid
Molecular weight:
256.12118

Ref: 45-1460328

25mg1,292.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Pyridostigmine Related Compound B (3-Hydroxy-1-methylpyridin-1-ium bromide)

CAS:31034-86-3
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C6H8BrNO
Color and Shape:
White Off-White Solid
Molecular weight:
188.97893

Ref: 45-1586031

10mg1,441.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Amoxicillin Related Compound C ((4S)-2-[5-(4-hydroxyphenyl)-3,6-dioxopiperazin-2-yl]-5,5-dimethylthiazolidine-4-carboxylic acid)

CAS:94659-47-9
Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure
Formula:
C16H19N3O5S
Color and Shape:
White Powder
Molecular weight:
365.10454

Ref: 45-1031536

15mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Flavoxate Related Compound B (Methyl 3-methyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate)

CAS:90101-87-4
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C18H14O4
Color and Shape:
White Off-White Powder
Molecular weight:
294.08921

Ref: 45-1270720

20mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Felbamate Related Compound A (3-Hydroxy-2-phenylpropyl carbamate)

CAS:25451-53-0
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C10H13NO3
Color and Shape:
White Crystalline Powder
Molecular weight:
195.08954

Ref: 45-1269323

25mg1,439.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Melengestrol Acetate Related Compound B (6,16-Dimethylene-3,20-dioxopregn-4-en-17-yl acetate)

CAS:80097-73-0
Estrogens and progestins
Formula:
C25H32O4
Color and Shape:
White Yellow Powder
Molecular weight:
396.5

Ref: 45-1379276

25mg1,441.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Spironolactone Related Compound D ((2'R)-7α-(Acetyldisulfanyl)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione)

Adrenal cortical hormones and their derivatives nesoi
Formula:
C24H32O4S2
Color and Shape:
White Powder
Molecular weight:
448.1742

Ref: 45-1619040

30mg1,442.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Carbidopa Related Compound A (3-O-Methylcarbidopa)

CAS:85933-19-3
Aromatic organic derivatives of hydrazine or of hydroxylamine
Formula:
C11H16N2O4
Color and Shape:
Yellow Tan Powder
Molecular weight:
240.11101

Ref: 45-1095517

25mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Calcipotriene Related Compound C ((5E,7E,22E,24S)-24-Cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β,24-triol)

CAS:113082-99-8
Other cyclanic, cyclenic or cycloterpenic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
Formula:
C27H40O3
Color and Shape:
Powder
Molecular weight:
412.29775

Ref: 45-1086152

15mg3,219.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Diphenhydramine N-Oxide (2-(benzhydryloxy)-N,N-dimethylethan-1-amine oxide hydrochloride)

CAS:13168-00-8
Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and …
Formula:
C17H21NO2·HCl
Color and Shape:
Powder
Molecular weight:
307.13391

Ref: 45-1218050

25mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Aripiprazole Related Compound C (1-(2,3-dichlorophenyl)piperazine hydrochloride)

CAS:119532-26-2
Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, …
Formula:
C10H12Cl2N2·HCl
Color and Shape:
White Powder
Molecular weight:
230.03775

Ref: 45-1042656

25mg1,292.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
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Nitrofurfural Diacetate

CAS:92-55-7
Compounds containing an unfused furan ring, whether or not hydrogenated, in the structure, nesoi
Formula:
C9H9NO7
Color and Shape:
White Off-White Tan Powder
Molecular weight:
243.0379

Ref: 45-1465503

100mg1,477.00 €
Estimated delivery in United States, on Friday 28 Feb 2025
+ info
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