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.

20
- 50
- 100
- 200

products per page. 4290 products on this category.

Product data	Purity	Price range	Estimated delivery
Dermatan Sulfate REF: 45-1171455CAS: 54328-33-5	- - -	1,583.00 €	Mon 02 Dec 24
Bupropion Hydrochloride Related Compound A (2-(tert-butylamino)-4'-chloropropiophenone hydrochloride) REF: 45-1078744CAS: 1049718-72-0	- - -	1,495.00 €	Mon 02 Dec 24
Pramipexole Related Compound D ((R)-2-Amino-4,5,6,7-tetrahydro-6-(propylamino)benzothiazole dihydrochloride) REF: 45-1553815CAS: 104632-27-1	- - -	1,371.00 €	Mon 02 Dec 24
Aripiprazole Related Compound B (7-(4-hydroxy-butoxy)-3,4-dihydroquinolin-2(1H)-one) REF: 45-1042645CAS: 889443-20-3	- - -	1,292.00 €	Mon 02 Dec 24
Molindone Related Compound A (3-Ethyl-2-methyl-1,5,6,7-tetrahydro-4H-indol-4-one) REF: 45-1445437CAS: 6116-76-3	- - -	1,683.00 €	Mon 02 Dec 24
Ketoprofen Related Compound F (3-(1-Cyanoethyl)benzophenone) REF: 45-1356585CAS: 42872-30-0	- - -	1,371.00 €	Mon 02 Dec 24
Pravastatin Related Compound B (sodium (3R,5R)-3,5-dihydroxy-7-((1S,2S,6R,8S,8aR)-6-hydroxy-2-methyl-8-((S)-2-methylbutanoyloxy)-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)heptanoate) REF: 45-1554228CAS: 81176-41-2	- - -	1,441.00 €	Mon 02 Dec 24
Ecamsule Related Compound F (4-((E)-((1SR,4SR)-7,7-dimethyl-3-oxo-4-(sulfomethyl)bicyclo[2.2.1]heptan-2-ylidene)methyl)benzoic acid) REF: 45-1231660	- - -	1,357.00 €	Mon 02 Dec 24
Rivastigmine Related Compound B ((R,S)-3-[1-(Dimethylamino)ethyl]phenyl dimethylcarbamate) REF: 45-1604870CAS: 25081-93-0	- - -	1,371.00 €	Mon 02 Dec 24
Uracil REF: 45-1705753CAS: 66-22-8	- - -	444.00 €	Mon 02 Dec 24
Doxazosin Related Compound B (6,7-dimethoxyquinazoline-2,4-dione) REF: 45-1225441CAS: 28888-44-0	- - -	1,477.00 €	Mon 02 Dec 24
Tizanidine Related Compound B (N-acetyltizanidine) REF: 45-1667924CAS: 173532-15-5	- - -	1,371.00 €	Mon 02 Dec 24
Potassium Ferricyanide REF: 45-1548258CAS: 13746-66-2	- - -	597.00 €	Mon 02 Dec 24
Spironolactone Related Compound B ((2'R)-7α-(Acetylthio)-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione) REF: 45-1619028CAS: 132458-33-4	- - -	2,639.00 €	Mon 02 Dec 24
Desogestrel Related Compound B (13-Ethyl-3-hydroxy-11-methylene-18,19-dinor-17α-pregn-4-en-20-yn-17-ol) REF: 45-1173257CAS: 869627-85-0	- - -	1,552.00 €	Mon 02 Dec 24
Diethyltoluamide Related Compound A (N,N-Diethyl-4-toluamide) REF: 45-1197018CAS: 2728-05-4	- - -	1,552.00 €	Mon 02 Dec 24
Clonazepam Related Compound B (2-Amino-2'-chloro-5-nitrobenzophenone) REF: 45-1140338CAS: 2011-66-7	- - -	1,371.00 €	Mon 02 Dec 24
Vinorelbine Related Compound A (4-O-Deacetylvinorelbine tartrate) REF: 45-1714528	- - -	2,084.00 €	Mon 02 Dec 24
Gabapentin Related Compound E (carboxymethyl-cyclohexanecarboxylic acid) REF: 45-1287369CAS: 67950-95-2	- - -	1,371.00 €	Mon 02 Dec 24
Glimepiride Related Compound B (glimepiride sulfonamide, or 3-Ethyl-4-methyl-2-oxo-N-(4-sulfamoylphenethyl)-2,5-dihydro-1H-pyrrole-1-carboxamide) REF: 45-1292325CAS: 119018-29-0	- - -	1,371.00 €	Mon 02 Dec 24

+ info

Dermatan Sulfate

CAS:54328-33-5

Natural polymers & modified natural polymers, in primary forms, nesoi

Color and Shape:

White Powder

Molecular weight:

Average 46275

Ref: 45-1171455

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Bupropion Hydrochloride Related Compound A (2-(tert-butylamino)-4'-chloropropiophenone hydrochloride)

CAS:1049718-72-0

Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; …

Formula:

C₁₃H₁₈ClNO·HCl

Color and Shape:

White Powder

Molecular weight:

275.08437

Ref: 45-1078744

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Pramipexole Related Compound D ((R)-2-Amino-4,5,6,7-tetrahydro-6-(propylamino)benzothiazole dihydrochloride)

CAS:104632-27-1

Compounds containing a benzothiazole ring-system (wheth

Formula:

C₁₀H₁₇N₃S·2HCl

Color and Shape:

Off-White Powder

Molecular weight:

283.06767

Ref: 45-1553815

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Aripiprazole Related Compound B (7-(4-hydroxy-butoxy)-3,4-dihydroquinolin-2(1H)-one)

CAS:889443-20-3

Lactams, nesoi

Formula:

C₁₃H₁₇NO₃

Color and Shape:

White Powder

Molecular weight:

235.12084

Ref: 45-1042645

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Molindone Related Compound A (3-Ethyl-2-methyl-1,5,6,7-tetrahydro-4H-indol-4-one)

CAS:6116-76-3

Heterocyclic compounds (excluding aromatic or modified aromatic) withnitrogen hetero-atom(s) only nesoi

Formula:

C₁₁H₁₅NO

Color and Shape:

Off-White Powder

Molecular weight:

177.11536

Ref: 45-1445437

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Ketoprofen Related Compound F (3-(1-Cyanoethyl)benzophenone)

CAS:42872-30-0

Nitrile function compounds, nesoi

Formula:

C₁₆H₁₃NO

Color and Shape:

White Off-White Powder

Molecular weight:

235.09971

Ref: 45-1356585

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Pravastatin Related Compound B (sodium (3R,5R)-3,5-dihydroxy-7-((1S,2S,6R,8S,8aR)-6-hydroxy-2-methyl-8-((S)-2-methylbutanoyloxy)-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)heptanoate)

CAS:81176-41-2

Carboxylic acids w/ alcohol function but w/o other oxyg

Formula:

C₂₃H₃₆O₇

Color and Shape:

Powder

Molecular weight:

424.2461

Ref: 45-1554228

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Ecamsule Related Compound F (4-((E)-((1SR,4SR)-7,7-dimethyl-3-oxo-4-(sulfomethyl)bicyclo[2.2.1]heptan-2-ylidene)methyl)benzoic acid)

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

Formula:

C₁₈H₂₀O₆S

Color and Shape:

White Powder

Molecular weight:

364.09806

Ref: 45-1231660

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Rivastigmine Related Compound B ((R,S)-3-[1-(Dimethylamino)ethyl]phenyl dimethylcarbamate)

CAS:25081-93-0

Aromatic cyclic amides (including cyclic carbamates) an

Formula:

C₁₃H₂₀N₂O₂

Color and Shape:

Pale Yellow Brown Liquid

Molecular weight:

236.15248

Ref: 45-1604870

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

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

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Doxazosin Related Compound B (6,7-dimethoxyquinazoline-2,4-dione)

CAS:28888-44-0

Aromatic or modified aromatic drugs with nitrogen hetero-atom(s) only, not elsewhere specified or included

Formula:

C₁₀H₁₀N₂O₄

Color and Shape:

White Powder

Molecular weight:

222.06406

Ref: 45-1225441

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Tizanidine Related Compound B (N-acetyltizanidine)

CAS:173532-15-5

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

Formula:

C₁₁H₁₀ClN₅OS

Color and Shape:

Yellow Powder

Molecular weight:

295.02946

Ref: 45-1667924

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Potassium Ferricyanide

CAS:13746-66-2

Complex cyanides

Formula:

K₃Fe(CN)₆

Molecular weight:

328.8445

Ref: 45-1548258

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Spironolactone Related Compound B ((2'R)-7α-(Acetylthio)-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione)

CAS:132458-33-4

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₂₄H₃₀O₄S

Color and Shape:

Off-White Solid

Molecular weight:

414.18648

Ref: 45-1619028

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Desogestrel Related Compound B (13-Ethyl-3-hydroxy-11-methylene-18,19-dinor-17α-pregn-4-en-20-yn-17-ol)

CAS:869627-85-0

Estrogens and progestins

Formula:

C₂₂H₃₀O₂

Color and Shape:

White Solid

Molecular weight:

326.22458

Ref: 45-1173257

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

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

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Clonazepam Related Compound B (2-Amino-2'-chloro-5-nitrobenzophenone)

CAS:2011-66-7

Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; …

Formula:

C₁₃H₉ClN₂O₃

Color and Shape:

Yellow Powder

Molecular weight:

276.03017

Ref: 45-1140338

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Vinorelbine Related Compound A (4-O-Deacetylvinorelbine tartrate)

Other alkaloids,natural or reproduced by synthesis, and their salts, ethers,esters&other derivatives, nesoi

Formula:

C₄₃H₅₂N₄O₇· 2C₄H₆O₆

Color and Shape:

Light Yellow Off-White Powder

Molecular weight:

736.3836

Ref: 45-1714528

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Gabapentin Related Compound E (carboxymethyl-cyclohexanecarboxylic acid)

CAS:67950-95-2

Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives

Formula:

C₉H₁₄O₄

Color and Shape:

White Powder

Molecular weight:

186.08921

Ref: 45-1287369

Estimated delivery in United States, on Monday 2 Dec 2024

+ info

Glimepiride Related Compound B (glimepiride sulfonamide, or 3-Ethyl-4-methyl-2-oxo-N-(4-sulfamoylphenethyl)-2,5-dihydro-1H-pyrrole-1-carboxamide)

CAS:119018-29-0

Sulfonamides, nesoi

Formula:

C₁₆H₂₁N₃O₄S

Color and Shape:

White Powder

Molecular weight:

351.12528

Ref: 45-1292325

Estimated delivery in United States, on Monday 2 Dec 2024

+ info