Recently Viewed 0
Meet Clearsynth at CPHI India 2026 · November 23–25 · Booth 2J10 · IICC, Yashobhoomi, New Delhi View event
My Account Need quick assistance? WhatsApp us +91-22-45045900 [email protected]
Categories / Impurity

Impurity Products

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

Showing 6169-6192 of 27558 products
All In Stock Custom Synthesis
(3S)-3-(N-Boc-amino)-1-chloro-4-phenyl-2-butanone chemical structure
Custom Synthesis

(3S)-3-(N-Boc-amino)-1-chloro-4-phenyl-2-butanone

CAT No. CS-O-31718
CAS No. 102123-74-0
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-3-(Trifluoromethyl)-1-piperazinecarboxylic acid 1,1-Dimethylethyl Ester chemical structure
Custom Synthesis

(3S)-3-(Trifluoromethyl)-1-piperazinecarboxylic acid 1,1-Dimethylethyl Ester

CAT No. CS-T-45401
CAS No. 1240587-95-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-3-amino-4-(2,4,5-trifluorophenyl)butanoic acid chemical structure
Custom Synthesis

(3S)-3-amino-4-(2,4,5-trifluorophenyl)butanoic acid

CAT No. CS-O-43279
CAS No. 1217854-08-4
Category Impurity
Parent API -
Formula C10H10F3NO2
Mol. Wt. 233.19
(3S)-3-methyl-Piperidine chemical structure
Custom Synthesis

(3S)-3-methyl-Piperidine

CAT No. CS-DV-00176
CAS No. 17305-22-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-4-(Phenylmethyl)-3-morpholinemethanol chemical structure
Custom Synthesis

(3S)-4-(Phenylmethyl)-3-morpholinemethanol

CAT No. CS-T-60464
CAS No. 101376-25-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S)-6-(trifluoromethyl)-2,3-dihydro-1-benzofuran-3-amine chemical structure
Custom Synthesis

(3S)-6-(trifluoromethyl)-2,3-dihydro-1-benzofuran-3-amine

CAT No. CS-O-37793
CAS No. 1272724-36-3
Category Impurity
Parent API
Formula C9H8F3NO
Mol. Wt. 203.16
(3S)-Aminoquinuclidine Dihydrochloride chemical structure
Custom Synthesis

(3S)-Aminoquinuclidine Dihydrochloride

CAT No. CS-T-03455
CAS No. 119904-90-4
Category Impurity
Parent API Quinuclidine
Formula C7H16Cl2N2
Mol. Wt. 199.12
(3S)-N-(5-Chloropyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxy-1-pyrrolidinecarboxamide chemical structure
Custom Synthesis

(3S)-N-(5-Chloropyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxy-1-pyrrolidinecarboxamide

CAT No. CS-O-39034
CAS No. 2226370-52-9
Category Impurity
Parent API Larotrectinib
Formula C11H12ClN5O2
Mol. Wt. 281.7
(3S)-N-[[(1S)-1,2,3,4-Tetrahydro-1-naphthalenyl]methyl]-1-azabicyclo[2.2.2]octan-3-amine chemical structure
Custom Synthesis

(3S)-N-[[(1S)-1,2,3,4-Tetrahydro-1-naphthalenyl]methyl]-1-azabicyclo[2.2.2]octan-3-amine

CAT No. CS-T-61893
CAS No. 177793-80-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S,​4R)​-​3-​fluoro-​4-​methoxypiperidine chemical structure
Custom Synthesis

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

CAT No. CS-O-40300
CAS No. 2140267-29-2
Category Impurity
Parent API
Formula -
Mol. Wt. 133.16
(3S,​4R)​-​tert-​Butyl 3-​fluoro-​4-​hydroxypiperidine-​1-​carboxylate chemical structure
Custom Synthesis

(3S,​4R)​-​tert-​Butyl 3-​fluoro-​4-​hydroxypiperidine-​1-​carboxylate

CAT No. CS-O-40298
CAS No. 1174020-40-6
Category Impurity
Parent API
Formula -
Mol. Wt. 219.25
(3S,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-ol chemical structure
Custom Synthesis

(3S,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-ol

CAT No. CS-T-55585
CAS No. 156928-10-8
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-yl 4-Nitrophenyl Ester Carbonic Acid chemical structure
Custom Synthesis

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

CAT No. CS-T-55614
CAS No. 288296-64-0
Category Impurity
Parent API Darunavir
Formula C13H13NO7
Mol. Wt. 295.3
(3S,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-yl 4-Nitrophenyl Ester Carbonic Acid chemical structure
Custom Synthesis

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

CAT No. CS-T-55620
CAS No. 252873-01-1
Category Impurity
Parent API Darunavir
Formula C13H13NO7
Mol. Wt. 295.3
(3S,4R) Tofacitinib Citrate chemical structure
Custom Synthesis

(3S,4R) Tofacitinib Citrate

CAT No. CS-O-39728
CAS No. 2174011-54-0
Category Impurity
Parent API Tofacitinib
Formula C22H28N6O8
Mol. Wt. 504.49
(3S,4R)-1-Boc-3-hydroxymethyl-4-(4-fluorophenyl)-piperidine chemical structure
Custom Synthesis

(3S,4R)-1-Boc-3-hydroxymethyl-4-(4-fluorophenyl)-piperidine

CAT No. CS-DV-00177
CAS No. 200572-33-4
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S,4R)-1-Methyl-4-phenyl-3-piperidinemethanol chemical structure
Custom Synthesis

(3S,4R)-1-Methyl-4-phenyl-3-piperidinemethanol

CAT No. CS-O-59487
CAS No. 176022-03-0
Category Impurity
Parent API Paroxetine
Formula C13H19NO
Mol. Wt. 205.30
(3S,4R)-3,4-Dimethyl-4-(3-hydroxyphenyl)piperidine chemical structure
Custom Synthesis

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

CAT No. CS-O-16755
CAS No. 2165896-76-2
Category Impurity
Parent API
Formula -
Mol. Wt. 205.30
(3S,4R)-3-Bromoacetyl-4-ethyl-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide chemical structure
Custom Synthesis

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

CAT No. CS-O-58524
CAS No.
Category Impurity
Parent API Upadacitinib
Formula C11H16BrF3N2O2
Mol. Wt. 345.16
(3S,4R)-4-(4-Fluorophenyl)-3-[[3-methoxy-4-(benzyloxy)phenoxy]methyl] piperidine chemical structure
Custom Synthesis

(3S,4R)-4-(4-Fluorophenyl)-3-[[3-methoxy-4-(benzyloxy)phenoxy]methyl] piperidine

CAT No. CS-T-54927
CAS No. 600135-89-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S,4R)-Benidipine HCl chemical structure
Custom Synthesis

(3S,4R)-Benidipine HCl

CAT No. CS-P-00682
CAS No. 119009-45-9
Category Impurity
Parent API Benidipine
Formula -
Mol. Wt.
(3S,4R)-tert-butyl 4-amino-3-fluoropiperidine-1-carboxylate chemical structure
Custom Synthesis

(3S,4R)-tert-butyl 4-amino-3-fluoropiperidine-1-carboxylate

CAT No. CS-DV-00180
CAS No. 907544-20-1
Category Impurity
Parent API
Formula -
Mol. Wt.
(3S,4R,4aS,7aR,12bS)-9-Acetoxy-3-(cyclopropylmethyl)-4a-hydroxy-3-methyl-7-oxo-2,3,4,4a,5,6,7,7a-octahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium Bromide chemical structure
Custom Synthesis

(3S,4R,4aS,7aR,12bS)-9-Acetoxy-3-(cyclopropylmethyl)-4a-hydroxy-3-methyl-7-oxo-2,3,4,4a,5,6,7,7a-octahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium Bromide

CAT No. CS-O-41019
CAS No. 1252784-80-7
Category Impurity
Parent API Naltrexone
Formula C23H28BrNO5
Mol. Wt. 478.38
(3S,4R,5R)-1-(2-fluoro-5-(5-(2-methyl-5-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahyd chemical structure
Custom Synthesis

(3S,4R,5R)-1-(2-fluoro-5-(5-(2-methyl-5-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahyd

CAT No. CS-O-34791
CAS No. -
Category Impurity
Parent API Canagliflozin
Formula C48H50F2O11S2
Mol. Wt. 905.03 mol/g

Impurity Products at Clearsynth

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

Browse available compounds above or contact our team for custom synthesis and bulk requirements.

Done
RFQ Basket 0
Quick Enquiry
Tell us what you need
Quote Basket
Selected RFQ Items
Your RFQ basket is empty. Add a product block or copy a guided requirement here.