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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Perindopril Related Compound C ((S)-2-[(3S,5aS,9aS,10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl]pentanoic acid)
CAS:129970-99-6
Heterocyclic compounds (excluding aromatic or modified aromatic) withnitrogen hetero
Formula:
C17H26N2O4
Color and Shape:
Solid
Molecular weight:
322.18926
Estimated delivery in United States, on Tuesday 15 Oct 2024
Vigabatrin Related Compound B ((E)-2-(2-aminoethyl)but-2-enoic acid hydrochloride)
Amino-acids (excluding aromatic) and their esters other than those containing more than one kind of …
Formula:
C6H11NO2·HCl
Color and Shape:
White Powder
Molecular weight:
165.05566
Estimated delivery in United States, on Tuesday 15 Oct 2024
Famotidine Related Compound F (3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylthio]propanoic acid)
CAS:107880-74-0
Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure
Formula:
C8H12N4O2S2
Color and Shape:
White Powder
Molecular weight:
260.04017
Estimated delivery in United States, on Tuesday 15 Oct 2024
Fosinopril Related Compound F ((4S)-4-cyclohexyl-1-[(R)-[(S)-1-hydroxypropoxy](4-phenylbutyl)phosphinyl]acetyl-L-proline propionate(ester), sodium salt)
Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi
Formula:
C29H43NNaO7P
Color and Shape:
White Powder
Molecular weight:
571.26748
Estimated delivery in United States, on Tuesday 15 Oct 2024
Citalopram Related Compound F (dimethyl-(1-methyl-3,3-diphenyl-allyl)-amine hydrochloride)
CAS:55011-89-7
Aromatic monoamines not elsewhere specified or included
Formula:
C18H21N·ClH
Color and Shape:
White Crystalline Powder
Molecular weight:
287.14408
Estimated delivery in United States, on Tuesday 15 Oct 2024
Valacyclovir Related Compound D (2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9yl)methoxy]ethyl N-ethyl-L-valinate)
CAS:1346747-69-0
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C15H24N6O4
Color and Shape:
White Powder
Molecular weight:
352.1859
Estimated delivery in United States, on Tuesday 15 Oct 2024
Ecamsule Related Compound G (4-((E)-((1SR,4SR)-7,7-dimethyl-3-oxo-4-(sulfomethyl)bicyclo[2.2.1]heptan-2-ylidene)methyl)benzaldehyde, sodium salt)
Halogenated, sulfonated, nitrated or nitrosated derivat
Formula:
C18H19NaO5S
Color and Shape:
White Powder
Molecular weight:
370.4
Estimated delivery in United States, on Tuesday 15 Oct 2024
Bendamustine Related Compound F (Mannitol-1-yl 4-{5-[bis(2-chloroethyl)amino]-1-methyl-1H -benzimidazol-2-yl}butanoate)
CAS:1869075-89-7
Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoi
Formula:
C22H33Cl2N3O7
Color and Shape:
White Solid
Molecular weight:
521.16956
Estimated delivery in United States, on Tuesday 15 Oct 2024
Granisetron Related Compound E ((1R,3r,5S)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine acetate)
CAS:1174751-61-1
Compounds containing an unfused pyridine ring in the structure, nesoi
Formula:
C9H18N2·C2H4O2
Color and Shape:
Off-White Powder
Molecular weight:
154.147
Estimated delivery in United States, on Tuesday 15 Oct 2024
Cilostazol Related Compound C (1-(4-(1-Cyclohexyl-1H-tetrazol-5-yl)butyl)-6-(4-(1-cyclohexyl-1H-tetrazol-5-yl)butoxy)-3,4-dihydroquinolin-2(1H)-one)
CAS:865792-18-3
Lactams not elsewhere specified or included
Formula:
C31H45N9O2
Color and Shape:
White Powder
Molecular weight:
575.36962
Estimated delivery in United States, on Tuesday 15 Oct 2024
Imiquimod Related Compound D (1-Propyl-1H-imidazo[4,5-c]quinolin-4-amine)
CAS:853792-81-1
Heterocyclic compounds with nitrogen hetero-atom(s) only, aromatic or modified aromatic, nesoi
Formula:
C13H14N4
Color and Shape:
Off-White Powder
Molecular weight:
226.12185
Estimated delivery in United States, on Tuesday 15 Oct 2024
Clonazepam Related Compound A (3-Amino-4-(2-chlorophenyl)-6-nitrocarbostyril)
CAS:55198-89-5
Lactams not elsewhere specified or included
Formula:
C15H10ClN3O3
Color and Shape:
Yellow-Orange Powder
Molecular weight:
315.04107
Estimated delivery in United States, on Tuesday 15 Oct 2024
Cyclophosphamide Related Compound C (3-aminopropyl dihydrogen phosphate)
CAS:1071-28-9
Acyclic monoamines and their derivatives, nesoi
Formula:
C3H10NO4P
Color and Shape:
White Powder
Molecular weight:
155.03474
Estimated delivery in United States, on Tuesday 15 Oct 2024
Lacosamide Related Compound D (2-Amino-N-benzyl-3-methoxypropanamide oxalate)
CAS:1379592-19-4
Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof
Formula:
C11H16N2O2·C2H2O4
Color and Shape:
Off-White Solid
Molecular weight:
208.12118
Estimated delivery in United States, on Tuesday 15 Oct 2024
Racemic Tiagabine Hydrochloride Mixture ((S)-(+),(R)-(-)-1-[4,4-bis(3-methyl-2-thienyl)-3-butenyl]nipecotic acid, hydrochloride)
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Estimated delivery in United States, on Tuesday 15 Oct 2024
Nicotine Related Compound B (3-(1-methyl-1H-pyrrol-2-yl)pyridine)
CAS:487-19-4
Other alkaloids,natural or reproduced by synthesis, and their salts, ethers,esters&other derivatives, nesoi
Formula:
C10H10N2
Color and Shape:
Colorless Light Yellow Oily Liquid
Molecular weight:
158.0844
Estimated delivery in United States, on Tuesday 15 Oct 2024
Levofloxacin Related Compound B ((S)-9,10,difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid)
CAS:100986-89-8
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C13H9F2NO4
Color and Shape:
White Off-White Crystalline Powder
Molecular weight:
281.04996
Estimated delivery in United States, on Tuesday 15 Oct 2024
Cetirizine Related Compound A ((RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid ethyl ester oxalate)
CAS:246870-46-2
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …
Formula:
C25H31ClN2O7
Color and Shape:
White Powder
Molecular weight:
506.98
Estimated delivery in United States, on Tuesday 15 Oct 2024
Amlodipine Related Compound K (Ethyl 6-(2-chlorophenyl)-8-methyl-3,4,6,7-tetrahydro-2H-benzo[b][1,4]oxazine-5-carboxylate)
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi
Formula:
C18H18ClNO3
Color and Shape:
Powder
Molecular weight:
331.09752
Estimated delivery in United States, on Tuesday 15 Oct 2024
Alosetron Related Compound A (5-Methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-1-one)
CAS:122852-75-9
Lactams not elsewhere specified or included
Formula:
C12H12N2O
Color and Shape:
Off-White Brown Powder
Molecular weight:
200.09496
Estimated delivery in United States, on Tuesday 15 Oct 2024
