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Categories / Impurity

Impurity Products

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

Showing 6145-6168 of 27558 products
All In Stock Custom Synthesis
(3R,4S)-4-Ethyl-3-pyrrolidinecarboxylic acid chemical structure
Custom Synthesis

(3R,4S)-4-Ethyl-3-pyrrolidinecarboxylic acid

CAT No. CS-O-54951
CAS No. 1821826-28-1
Category Impurity
Parent API -
Formula C7H13NO2
Mol. Wt. 143.18
(3R,4S)-N-Methyl Paroxetine chemical structure
Custom Synthesis

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

CAT No. CS-O-59325
CAS No. 2575750-19-3
Category Impurity
Parent API Paroxetine
Formula C20H22FNO3
Mol. Wt. 343.39
(3R,4S)-N-Phenoxycarbonyl Paroxetine chemical structure
Custom Synthesis

(3R,4S)-N-Phenoxycarbonyl Paroxetine

CAT No. CS-O-37355
CAS No.
Category Impurity
Parent API Paroxetine
Formula C26H24FNO5
Mol. Wt. 449.47
(3R,4S,5R)-5-((S)-2,3-Bis((trimethylsilyl)oxy)propyl)-3,4-bis((trimethylsilyl)oxy)dihydrofuran-2(3H)-one chemical structure
Custom Synthesis

(3R,4S,5R)-5-((S)-2,3-Bis((trimethylsilyl)oxy)propyl)-3,4-bis((trimethylsilyl)oxy)dihydrofuran-2(3H)-one

CAT No. CS-O-53676
CAS No.
Category Impurity
Parent API -
Formula C19H44O6Si4
Mol. Wt. 480.89
(3R,4S,5R)-ethyl 5-(tert-butylamino)-4- (diallylamino)-3-(pentan-3- yloxy)cyclohex-1-enecarboxylate chemical structure
Custom Synthesis

(3R,4S,5R)-ethyl 5-(tert-butylamino)-4- (diallylamino)-3-(pentan-3- yloxy)cyclohex-1-enecarboxylate

CAT No. CS-O-37425
CAS No. -
Category Impurity
Parent API Oseltamivir
Formula C24H42N2O3
Mol. Wt. 406.60
(3R,4S,5S)-ethyl 5-(tert-butylamino)-4- hydroxy-3-(pentan-3-yloxy)cyclohex-1- enecarboxylate chemical structure
Custom Synthesis

(3R,4S,5S)-ethyl 5-(tert-butylamino)-4- hydroxy-3-(pentan-3-yloxy)cyclohex-1- enecarboxylate

CAT No. CS-O-37424
CAS No. -
Category Impurity
Parent API Oseltamivir
Formula C18H33NO4
Mol. Wt. 327.46
(3R,4S,5S,6R)-2-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2H-pyran-3,4,5-triol chemical structure
Custom Synthesis

(3R,4S,5S,6R)-2-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2H-pyran-3,4,5-triol

CAT No. CS-O-42768
CAS No. 1030825-21-8
Category Impurity
Parent API -
Formula C25H27FO6S
Mol. Wt. 474.54
(3R,4S,5S,6R)-6-((((2R,3S,4S,5R)-6-(4-chloro-3-(4-ethoxybenzyl)phenyl)-3,4,5-trihydroxy-6-methoxytetrahydro-2H-pyran-2-yl)methoxy)methyl)-3,4,5-trihydroxytetrahydro-2H-pyran-2-one chemical structure
Custom Synthesis

(3R,4S,5S,6R)-6-((((2R,3S,4S,5R)-6-(4-chloro-3-(4-ethoxybenzyl)phenyl)-3,4,5-trihydroxy-6-methoxytetrahydro-2H-pyran-2-yl)methoxy)methyl)-3,4,5-trihydroxytetrahydro-2H-pyran-2-one

CAT No. CS-O-40578
CAS No. -
Category Impurity
Parent API Dapagliflozin
Formula C28H35ClO12
Mol. Wt. 599.02
(3R,5R)-Rosuvastatin Lactone chemical structure
Custom Synthesis

(3R,5R)-Rosuvastatin Lactone

CAT No. CS-T-85371
CAS No. 1422954-11-7
Category Impurity
Parent API Rosuvastatin
Formula C22H26FN3O5S
Mol. Wt. 463.5
(3R,5R)-Rosuvastatin sodium salt chemical structure
Custom Synthesis

(3R,5R)-Rosuvastatin sodium salt

CAT No. CS-N-04637
CAS No. 1094100-06-7 (Freeacid)
Category Impurity
Parent API Rosuvastatin
Formula C22H27FN3NaO6S
Mol. Wt. 503.52
(3R,5S)-5-((R)-8-Fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5-dihydroxypentanoic acid chemical structure
Custom Synthesis

(3R,5S)-5-((R)-8-Fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5-dihydroxypentanoic acid

CAT No. CS-O-43670
CAS No. 854898-48-9
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R,5S)-6-Chloro-3,5-dihydroxyhexanoic Acid tert-Butyl Ester chemical structure
Custom Synthesis

(3R,5S)-6-Chloro-3,5-dihydroxyhexanoic Acid tert-Butyl Ester

CAT No. CS-T-50677
CAS No. 154026-93-4
Category Impurity
Parent API Rosuvastatin
Formula C10H19ClO4
Mol. Wt. 238.7
(3R,5S)-Atorvastatin chemical structure
Custom Synthesis

(3R,5S)-Atorvastatin

CAT No. CS-EO-03339
CAS No. 651770-09-1
Category Impurity
Parent API Atorvastatin
Formula C33H35FN2O5
Mol. Wt. 558.7
(3R,5S)-Atorvastatin Acetonide tert-Butyl Ester chemical structure
Custom Synthesis

(3R,5S)-Atorvastatin Acetonide tert-Butyl Ester

CAT No. CS-TA-20608
CAS No. 947249-30-1
Category Impurity
Parent API Atorvastatin
Formula C40H47FN2O5
Mol. Wt. 654.81 g/mol
(3R,5S)-Atorvastatin Calcium salt chemical structure
Custom Synthesis

(3R,5S)-Atorvastatin Calcium salt

CAT No. CS-EO-02022
CAS No. 1312366-79-2
Category Impurity
Parent API Atorvastatin
Formula C66H68CaF2N4O10
Mol. Wt. 1154.45
(3R,5S)-Fluvastatin Sodium Salt chemical structure
Custom Synthesis

(3R,5S)-Fluvastatin Sodium Salt

CAT No. CS-T-24506
CAS No. 94061-80-0
Category Impurity
Parent API Fluvastatin
Formula C24H25FNO4 : Na
Mol. Wt. 410.4 : 23.0
(3R,5S,6R)-Ubrogepant Diastereiomer impurity chemical structure
Custom Synthesis

(3R,5S,6R)-Ubrogepant Diastereiomer impurity

CAT No. CS-O-45056
CAS No. -
Category Impurity
Parent API Ubrogepant
Formula C29H26F3N5O3
Mol. Wt. 549.55
(3R,9R,10R)-(-)-Panaxytriol chemical structure
Custom Synthesis

(3R,9R,10R)-(-)-Panaxytriol

CAT No. CS-T-83867
CAS No. 87005-03-6
Category Impurity
Parent API
Formula -
Mol. Wt.
(3R-trans)-[3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]cyclohexylidene]-acetic Acid Ethyl Ester chemical structure
Custom Synthesis

(3R-trans)-[3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]cyclohexylidene]-acetic Acid Ethyl Ester

CAT No. CS-T-06903
CAS No. 139356-36-8
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-1-(Methoxymethoxy)-4-[(4-methoxyphenyl)methyl]-3-(2-methylpropyl)piperazine chemical structure
Custom Synthesis

(3S)-1-(Methoxymethoxy)-4-[(4-methoxyphenyl)methyl]-3-(2-methylpropyl)piperazine

CAT No. CS-MM-56301
CAS No. 162715-73-3
Category Impurity
Parent API
Formula -
Mol. Wt. 350.42
(3S)-10-(4-Ethyl-1-piperazinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid-d5(Levofloxacin Impurity) chemical structure
Custom Synthesis

(3S)-10-(4-Ethyl-1-piperazinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid-d5(Levofloxacin Impurity)

CAT No. CS-T-97514
CAS No.
Category Impurity
Parent API
Formula C19H17D5FN3O4
Mol. Wt. 380.42
(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid chemical structure
Custom Synthesis

(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid

CAT No. CS-T-54826
CAS No. 117620-84-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-3-(4-((5-(2-fluoro-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-yl)oxy)phenyl)hex-4-ynoic acid chemical structure
Custom Synthesis

(3S)-3-(4-((5-(2-fluoro-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-yl)oxy)phenyl)hex-4-ynoic acid

CAT No. CS-O-38359
CAS No. 929712-89-0
Category Impurity
Parent API
Formula C28H25FO4
Mol. Wt. 444.49
(3S)-3-(4-((5-(2-fluoro-5-methoxyphenyl)-2,3-dihydro-1H-inden-1-yl)oxy)phenyl)hex-4-ynoic acid chemical structure
Custom Synthesis

(3S)-3-(4-((5-(2-fluoro-5-methoxyphenyl)-2,3-dihydro-1H-inden-1-yl)oxy)phenyl)hex-4-ynoic acid

CAT No. CS-O-38353
CAS No. 1044909-40-1
Category Impurity
Parent API
Formula C28H25FO4
Mol. Wt. 444.49

Impurity Products at Clearsynth

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

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