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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
Methylphenidate Related Compound A (α-Phenyl-2-piperidineacetic Acid Hydrochloride)
REF: 45-1434022CAS: 19395-40-5 		- - -1,627.00 €Tue 03 Dec 24
Cromolyn Related Compound B (Diethyl 5,5'-[(2-hydroxypropane-1,3-diyl)bis(oxy)]bis(4-oxo-4H-chromene-2-carboxylate))
REF: 45-1150524CAS: 16150-45-1 		- - -1,552.00 €Tue 03 Dec 24
Roflumilast Related Compound E (N-(3-Bromo-5-chloropyridin-4-yl)-3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzamide)
REF: 45-1605067		- - -1,469.00 €Tue 03 Dec 24
Epinastine Related Compound A ((6,11-Dihydro-5H-dibenzo[b,e]azepin-6-yl)methanamine fumarate)
REF: 45-1236890CAS: 127785-96-0 		- - -919.00 €Tue 03 Dec 24
Ethacrynic Acid Related Compound C ({4-[2-(4-(Carboxymethoxy)-2,3-dichlorobenzoyl)-2,5-diethyl-3,4-dihydro-2H-pyran-6-yl]-2,3-dichlorophenoxy}acetic acid)
REF: 45-1256037CAS: 25355-92-4 		- - -1,441.00 €Tue 03 Dec 24
Fluconazole Related Compound A (2-[2-fluoro-4-(1H-1,2,4-triazol-1-yl)phenyl]-1,3-bis(1H-1,2,4-triazol-1-yl)-propan-2-ol)
REF: 45-1271711CAS: 871550-15-1 		- - -1,477.00 €Tue 03 Dec 24
1,3-Dinitroglycerin
REF: 45-1213159CAS: 623-87-0 		- - -1,328.00 €Tue 03 Dec 24
Bupropion Hydrochloride Related Compound F (1-(3-chlorophenyl)-1-hydroxypropan-2-one)
REF: 45-1078799CAS: 857233-13-7 		- - -1,611.00 €Tue 03 Dec 24
Lorazepam Related Compound E (6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol)
REF: 45-1370360CAS: 773871-49-1 		- - -1,441.00 €Tue 03 Dec 24
Daunorubicinone ((8S,10S)-8-Acetyl-6,8,10,11-tetrahydroxy-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione)
REF: 45-1164697CAS: 21794-55-8 		- - -1,371.00 €Tue 03 Dec 24
Potassium Trichloroammineplatinate
REF: 45-1551300CAS: 13820-91-2 		- - -To inquireTue 03 Dec 24
Gatifloxacin Related Compound A (1-Cyclopropyl-6-fluoro-8-hydroxy-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid)
REF: 45-1288419CAS: 616205-76-6 		- - -1,292.00 €Tue 03 Dec 24
Amitriptyline Related Compound B (5-[3-(dimethylamino)propyl]-10,11-dihydro-5H-dibenzo[a,d]-cyclohepten-5-ol)
REF: 45-1029024CAS: 1159-03-1 		- - -1,477.00 €Tue 03 Dec 24
Terazosin Related Compound A (6,7-Dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine dihydrochloride)
REF: 45-1643463CAS: 60548-08-5 		- - -1,441.00 €Tue 03 Dec 24
Bosentan Related Compound C (1,2-bis({6-[4-(tert-butyl)phenylsulfonamido]-5-(2-methoxyphenoxy)-[2,2'-bipyrimidin]-4-yl}oxy)ethane)
REF: 45-1076148CAS: 1097263-60-9 		- - -1,371.00 €Tue 03 Dec 24
Fosinopril Related Compound G ((4-phenylbutyl)phosphinyl acetic acid, disodium salt)
REF: 45-1283470		- - -1,441.00 €Tue 03 Dec 24
Didanosine Related Compound A (Hypoxanthine)
REF: 45-1191226CAS: 68-94-0 		- - -1,477.00 €Tue 03 Dec 24
Zaleplon Related Compound C (7-[3-(N-ethylacetamido)phenyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide)
REF: 45-1724383CAS: 940951-54-2 		- - -815.00 €Tue 03 Dec 24
Losartan Related Compound D (5-[4'-({2-Butyl-5-[(5-{4'-[(2-butyl-4-chloro-5-hydroxymethyl-1H-imidazol-1-yl)methyl]biphenyl-2-yl}-1H-tetrazol-1-yl)methyl]-4-chloro-1H-imidazol-1-yl}methyl)biphenyl-2-yl]tetrazol, potassium salt)
REF: 45-1370509		- - -1,552.00 €Tue 03 Dec 24
Zileuton Related Compound B (2-(Benzo[b]thien-2-oyl)benzo[b]thiophene)
REF: 45-1724678CAS: 97978-07-9 		- - -1,379.00 €Tue 03 Dec 24
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Methylphenidate Related Compound A (α-Phenyl-2-piperidineacetic Acid Hydrochloride)

CAS:19395-40-5
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C13H17NO2·HCl
Color and Shape:
White Powder
Molecular weight:
255.10261

Ref: 45-1434022

Estimated delivery in United States, on Tuesday 3 Dec 2024
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Cromolyn Related Compound B (Diethyl 5,5'-[(2-hydroxypropane-1,3-diyl)bis(oxy)]bis(4-oxo-4H-chromene-2-carboxylate))

CAS:16150-45-1
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C27H24O11
Color and Shape:
Cream Light Brown Powder
Molecular weight:
524.13186

Ref: 45-1150524

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Roflumilast Related Compound E (N-(3-Bromo-5-chloropyridin-4-yl)-3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzamide)

Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C17H14BrClF2N2O3
Color and Shape:
White Beige Powder
Molecular weight:
445.98444

Ref: 45-1605067

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Epinastine Related Compound A ((6,11-Dihydro-5H-dibenzo[b,e]azepin-6-yl)methanamine fumarate)

CAS:127785-96-0
Antihistamines
Formula:
C15H16N2·C4H4O4
Color and Shape:
Off-White Brown Crystalline Powder
Molecular weight:
340.14231

Ref: 45-1236890

Estimated delivery in United States, on Tuesday 3 Dec 2024
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Ethacrynic Acid Related Compound C ({4-[2-(4-(Carboxymethoxy)-2,3-dichlorobenzoyl)-2,5-diethyl-3,4-dihydro-2H-pyran-6-yl]-2,3-dichlorophenoxy}acetic acid)

CAS:25355-92-4
Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi
Formula:
C26H24Cl4O8
Color and Shape:
Off-White Powder
Molecular weight:
604.02253

Ref: 45-1256037

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Fluconazole Related Compound A (2-[2-fluoro-4-(1H-1,2,4-triazol-1-yl)phenyl]-1,3-bis(1H-1,2,4-triazol-1-yl)-propan-2-ol)

CAS:871550-15-1
Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi
Formula:
C15H14FN9O
Color and Shape:
White Powder
Molecular weight:
355.13053

Ref: 45-1271711

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1,3-Dinitroglycerin

CAS:623-87-0
Esters of other inorganic acids of nonmetals & their salts, their halogenated/sulfonated/nitrated/nitrosated derivs, except of …
Formula:
C3H6N2O7
Color and Shape:
Clear Colorless Liquid
Molecular weight:
182.0175

Ref: 45-1213159

Estimated delivery in United States, on Tuesday 3 Dec 2024
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Bupropion Hydrochloride Related Compound F (1-(3-chlorophenyl)-1-hydroxypropan-2-one)

CAS:857233-13-7
Aromatic ketone-alcohols and ketone-aldehydes, nesoi
Formula:
C9H9ClO2
Color and Shape:
Clear Yellow Liquid
Molecular weight:
184.02911

Ref: 45-1078799

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Lorazepam Related Compound E (6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol)

CAS:773871-49-1
Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoi
Formula:
C15H10Cl2N2O
Color and Shape:
White Powder
Molecular weight:
304.01702

Ref: 45-1370360

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Daunorubicinone ((8S,10S)-8-Acetyl-6,8,10,11-tetrahydroxy-1-methoxy-7,8,9,10-tetrahydrotetracene-5,12-dione)

CAS:21794-55-8
Ketone-phenols and ketones with other oxygen function
Formula:
C21H18O8
Color and Shape:
Powder
Molecular weight:
398.10017

Ref: 45-1164697

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Potassium Trichloroammineplatinate

CAS:13820-91-2
Inorganic or organic compounds of precious metals, whether or not chemically defined; amalgrams of precious …
Formula:
Cl3H3KNPt
Color and Shape:
Orange Yellow Crystals
Molecular weight:
355.86161

Ref: 45-1551300

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Gatifloxacin Related Compound A (1-Cyclopropyl-6-fluoro-8-hydroxy-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid)

CAS:616205-76-6
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C18H20FN3O4
Color and Shape:
Yellow Solid
Molecular weight:
361.14378

Ref: 45-1288419

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Amitriptyline Related Compound B (5-[3-(dimethylamino)propyl]-10,11-dihydro-5H-dibenzo[a,d]-cyclohepten-5-ol)

CAS:1159-03-1
Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and …
Formula:
C20H25NO
Color and Shape:
White Powder
Molecular weight:
295.19361

Ref: 45-1029024

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Terazosin Related Compound A (6,7-Dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine dihydrochloride)

CAS:60548-08-5
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C14H19N5O2· 2HCl
Color and Shape:
White Powder
Molecular weight:
289.15387

Ref: 45-1643463

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Bosentan Related Compound C (1,2-bis({6-[4-(tert-butyl)phenylsulfonamido]-5-(2-methoxyphenoxy)-[2,…
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Bosentan Related Compound C (1,2-bis({6-[4-(tert-butyl)phenylsulfonamido]-5-(2-methoxyphenoxy)-[2,2'-bipyrimidin]-4-yl}oxy)ethane)

CAS:1097263-60-9
Sulfonamides, nesoi
Formula:
C52H52N10O10S2
Color and Shape:
Off-White Powder
Molecular weight:
1040.33093

Ref: 45-1076148

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Fosinopril Related Compound G ((4-phenylbutyl)phosphinyl acetic acid, disodium salt)

Organo-inorganic compounds, nesoi
Formula:
C12H15Na2O4P
Color and Shape:
Off-White Powder
Molecular weight:
300.05033

Ref: 45-1283470

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Didanosine Related Compound A (Hypoxanthine)

CAS:68-94-0
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C5H4N4O
Color and Shape:
Off-White White Powder
Molecular weight:
136.03851

Ref: 45-1191226

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Zaleplon Related Compound C (7-[3-(N-ethylacetamido)phenyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide)

CAS:940951-54-2
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C17H17N5O2
Color and Shape:
Powder
Molecular weight:
323.13822

Ref: 45-1724383

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Losartan Related Compound D (5-[4'-({2-Butyl-5-[(5-{4'-[(2-butyl-4-chloro-5-hydroxymethyl-1H-imidazol-1-yl)methyl]biphenyl-2-yl}-1H-tetrazol-1-yl)methyl]-4-chloro-1H-imidazol-1-yl}methyl)biphenyl-2-yl]tetrazol, potassium salt)

Compounds containing an unfused imidazole ring, whether or not hydrogenated, in the structure, nesoi
Formula:
C44H43Cl2KN12O
Color and Shape:
Powder
Molecular weight:
864.26969

Ref: 45-1370509

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Zileuton Related Compound B (2-(Benzo[b]thien-2-oyl)benzo[b]thiophene)

CAS:97978-07-9
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C17H10OS2
Color and Shape:
Yellow Brown Powder
Molecular weight:
294.01731

Ref: 45-1724678

Estimated delivery in United States, on Tuesday 3 Dec 2024
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