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Categories / Impurity

Impurity Products

Browse available compounds, catalogue references, CAS numbers and technical details from Clearsynth.

Showing 6121-6144 of 27558 products
All In Stock Custom Synthesis
(3R)-3-[4-[(5-Bromo-2-chlorophenyl)methyl]phenoxy]tetrahydrofuran chemical structure
Custom Synthesis

(3R)-3-[4-[(5-Bromo-2-chlorophenyl)methyl]phenoxy]tetrahydrofuran

CAT No. CS-DV-00165
CAS No. 915095-90-8
Category Impurity
Parent API Empagliflozin
Formula C17H16BrClO2
Mol. Wt. 367.7
(3R)-3-Aminobutanamide chemical structure
Custom Synthesis

(3R)-3-Aminobutanamide

CAT No. CS-BX-02692
CAS No. 44589-02-8
Category Impurity
Parent API -
Formula C4H10N2O
Mol. Wt. 102.13
(3R)-3-Piperidinemethanol, hydrochloride (1:1) chemical structure
Custom Synthesis

(3R)-3-Piperidinemethanol, hydrochloride (1:1)

CAT No. CS-DV-00167
CAS No. 1124199-58-1
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R)-Benazepril Hydrochloride chemical structure
Custom Synthesis

(3R)-Benazepril Hydrochloride

CAT No. CS-T-04799
CAS No. 215447-89-5
Category Impurity
Parent API Benazepril hydrochloride
Formula -
Mol. Wt.
(3R,​4S)​-​3-​fluoro-​4-​methoxypiperidine chemical structure
Custom Synthesis

(3R,​4S)​-​3-​fluoro-​4-​methoxypiperidine

CAT No. CS-O-40299
CAS No. 2306252-56-0
Category Impurity
Parent API
Formula -
Mol. Wt. 133.16
(3R,11bS)-Tetrabenazine chemical structure
Custom Synthesis

(3R,11bS)-Tetrabenazine

CAT No. CS-O-62858
CAS No. -
Category Impurity
Parent API Tetrabenazine
Formula C19H27NO3
Mol. Wt. 317.43
(3R,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-yl 4-Nitrophenyl Ester Carbonic Acid chemical structure
Custom Synthesis

(3R,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-yl 4-Nitrophenyl Ester Carbonic Acid

CAT No. CS-T-55616
CAS No. 252873-51-1
Category Impurity
Parent API Darunavir
Formula C13H13NO7
Mol. Wt. 295.3
(3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-yl-4-(N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutyl-d9-sulfamoyl)phenylcarbamate(Darunavir-d9 Impurity) chemical structure
Custom Synthesis

(3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-yl-4-(N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutyl-d9-sulfamoyl)phenylcarbamate(Darunavir-d9 Impurity)

CAT No. CS-T-97467
CAS No.
Category Impurity
Parent API
Formula C27H28D9N3O7S
Mol. Wt. 556.72
(3R,4R)-2-((S)-1,2-dihydroxyethyl)-5-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)tetrahydrofuran-3,4-diol chemical structure
Custom Synthesis

(3R,4R)-2-((S)-1,2-dihydroxyethyl)-5-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)tetrahydrofuran-3,4-diol

CAT No. CS-O-42769
CAS No. -
Category Impurity
Parent API Canagliflozin
Formula C24H25FO5S
Mol. Wt. 444.52
(3R,4R)-3-((benzo[d][1,3]dioxol-5-yloxy)methyl)-4-phenylpiperidine hydrochloride chemical structure
Custom Synthesis

(3R,4R)-3-((benzo[d][1,3]dioxol-5-yloxy)methyl)-4-phenylpiperidine hydrochloride

CAT No. CS-O-37354
CAS No. -
Category Impurity
Parent API
Formula -
Mol. Wt. 347.84
(3R,4R)-3-Amino-1-Boc-4-hydroxypyrrolidine chemical structure
Custom Synthesis

(3R,4R)-3-Amino-1-Boc-4-hydroxypyrrolidine

CAT No. CS-AC-05026
CAS No. 330681-18-0
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R,4R)-3-Bromoacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide chemical structure
Custom Synthesis

(3R,4R)-3-Bromoacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide

CAT No. CS-O-58522
CAS No.
Category Impurity
Parent API Upadacitinib
Formula C11H16BrF3N2O2
Mol. Wt. 345.16
(3R,4R)-4-Amino-1-oxyl-2,2,6,6-tetramethylpiperidine-3-carboxylic Acid chemical structure
Custom Synthesis

(3R,4R)-4-Amino-1-oxyl-2,2,6,6-tetramethylpiperidine-3-carboxylic Acid

CAT No. CS-T-03202
CAS No. 691364-99-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R,4R)-N-Methyl Paroxetine chemical structure
Custom Synthesis

(3R,4R)-N-Methyl Paroxetine

CAT No. CS-O-59321
CAS No. 112058-87-4
Category Impurity
Parent API Paroxetine
Formula C20H22FNO3
Mol. Wt. 343.39
(3R,4R,5R)-3,4-Dihydroxy-5-[(methylsulfonyl)oxy]-1-cyclohexene-1-carboxylic Acid Ethyl Ester chemical structure
Custom Synthesis

(3R,4R,5R)-3,4-Dihydroxy-5-[(methylsulfonyl)oxy]-1-cyclohexene-1-carboxylic Acid Ethyl Ester

CAT No. CS-T-53254
CAS No. 220626-12-0
Category Impurity
Parent API Oseltamivir
Formula C10H16O7S
Mol. Wt. 280.3
(3R,4R,5R)-4-Acetylamino-5-amino-3-(1-ethyl-propoxy)-cyclohex-1-enecarboxylic acid ethyl ester chemical structure
Custom Synthesis

(3R,4R,5R)-4-Acetylamino-5-amino-3-(1-ethyl-propoxy)-cyclohex-1-enecarboxylic acid ethyl ester

CAT No. CS-O-35872
CAS No. -
Category Impurity
Parent API Oseltamivir
Formula C16H28N2O4
Mol. Wt. 312.4
(3R,4R,5S)-4-(Acetylamino)-5-amino-3-(1-methylethoxy)-1-Cyclohexene-1-carboxylic Acid Ethyl Ester chemical structure
Custom Synthesis

(3R,4R,5S)-4-(Acetylamino)-5-amino-3-(1-methylethoxy)-1-Cyclohexene-1-carboxylic Acid Ethyl Ester

CAT No. CS-T-93560
CAS No. 1052063-36-1
Category Impurity
Parent API
Formula C14H24N2O4
Mol. Wt. 284.35
(3R,4R,5S)-ethyl 4-(tert-butylamino)-5- (diallylamino)-3-hydroxycyclohex-1- enecarboxylate chemical structure
Custom Synthesis

(3R,4R,5S)-ethyl 4-(tert-butylamino)-5- (diallylamino)-3-hydroxycyclohex-1- enecarboxylate

CAT No. CS-O-37427
CAS No. -
Category Impurity
Parent API Oseltamivir
Formula C19H32N2O3
Mol. Wt. 336.47
(3R,4S)-​Tofacitinib citirate chemical structure
Custom Synthesis

(3R,4S)-​Tofacitinib citirate

CAT No. CS-O-39729
CAS No. 2174011-53-9
Category Impurity
Parent API Tofacitinib
Formula C16H20N6O : C6H8O7
Mol. Wt. 312.4 : 192.1
(3R,4S)-1-Benzyl-N,4-dimethylpiperidin-3-amine chemical structure
Custom Synthesis

(3R,4S)-1-Benzyl-N,4-dimethylpiperidin-3-amine

CAT No. CS-TA-27807
CAS No. 1638499-31-6
Category Impurity
Parent API Tofacitinib
Formula C14H22N2
Mol. Wt. 218.34g/mol
(3R,4S)-3,4-Dimethyl-4-(3-hydroxyphenyl)piperidine chemical structure
Custom Synthesis

(3R,4S)-3,4-Dimethyl-4-(3-hydroxyphenyl)piperidine

CAT No. CS-O-16754
CAS No. 59381-63-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R,4S)-3-Acetyl-4-ethyl-N-(2,2,2-trifluoro ethyl)pyrrolidine-1-carboxamide chemical structure
Custom Synthesis

(3R,4S)-3-Acetyl-4-ethyl-N-(2,2,2-trifluoro ethyl)pyrrolidine-1-carboxamide

CAT No. CS-O-58517
CAS No. 2576426-11-2
Category Impurity
Parent API Upadacitinib
Formula C11H17F3N2O2
Mol. Wt. 266.26
(3R,4S)-3-Chloroacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide chemical structure
Custom Synthesis

(3R,4S)-3-Chloroacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide

CAT No. CS-O-58526
CAS No.
Category Impurity
Parent API Upadacitinib
Formula C11H16ClF3N2O2
Mol. Wt. 300.71
(3R,4S)-3-Dibromoacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide chemical structure
Custom Synthesis

(3R,4S)-3-Dibromoacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide

CAT No. CS-O-58520
CAS No.
Category Impurity
Parent API Upadacitinib
Formula C11H15Br2F3N2O2
Mol. Wt. 424.06

Impurity Products at Clearsynth

Browse available Impurity products from Clearsynth. These compounds support analytical research, quality control and pharmaceutical development.

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