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 20881-20904 of 27566 products
All In Stock Custom Synthesis
N-(4-methoxyphenyl)nitrous hydrazide chemical structure
Custom Synthesis

N-(4-methoxyphenyl)nitrous hydrazide

CAT No. CS-O-44916
CAS No. -
Category Impurity
Parent API Apixaban
Formula C7H9N3O2
Mol. Wt. 167.17
N-(4-pyridyl)-2-hydroxybutyramide chemical structure
Custom Synthesis

N-(4-pyridyl)-2-hydroxybutyramide

CAT No. CS-O-13620
CAS No. 1864897-67-5
Category Impurity
Parent API Fampridine
Formula C9H12N2O2
Mol. Wt. 180.2
N-(5-(hydroxymethyl)-4-isopropyl-6-phenylpyrimidin-2-yl)-N-methylmethanesulfonamide chemical structure
Custom Synthesis

N-(5-(hydroxymethyl)-4-isopropyl-6-phenylpyrimidin-2-yl)-N-methylmethanesulfonamide

CAT No. CS-O-39853
CAS No. -
Category Impurity
Parent API rosuvastatin
Formula C16H21N3O3S
Mol. Wt. 335.42
N-(5-(methylthio)-1,3,4-thiadiazol-2-yl)acetamide chemical structure
Custom Synthesis

N-(5-(methylthio)-1,3,4-thiadiazol-2-yl)acetamide

CAT No. CS-O-45916
CAS No. -
Category Impurity
Parent API Methazolamide
Formula C5H7N3OS2
Mol. Wt. 189.26
N-(5-Acetamido-1,3,4-thiadiazole-2-yl) Acetazolamide chemical structure
Custom Synthesis

N-(5-Acetamido-1,3,4-thiadiazole-2-yl) Acetazolamide

CAT No. CS-O-13143
CAS No. -
Category Impurity
Parent API Acetazolamide
Formula -
Mol. Wt.
N-(5-amino-1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-4-pyrimidinyl)-Formamide chemical structure
Custom Synthesis

N-(5-amino-1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-4-pyrimidinyl)-Formamide

CAT No. CS-O-16056
CAS No. 60797-68-4
Category Impurity
Parent API Theophylline
Formula C7H10N4O3
Mol. Wt. 198.2
N-(5-Amino-1-carboxypentyl)iminodiacetic Acid Tri-t-butyl Ester chemical structure
Custom Synthesis

N-(5-Amino-1-carboxypentyl)iminodiacetic Acid Tri-t-butyl Ester

CAT No. CS-T-02159
CAS No. 205379-08-4
Category Impurity
Parent API
Formula -
Mol. Wt.
N-(5-Amino-2-methoxy-phenyl)-2-morpholin-4-yl-acetamide chemical structure
Custom Synthesis

N-(5-Amino-2-methoxy-phenyl)-2-morpholin-4-yl-acetamide

CAT No. CS-M-07133
CAS No. 436090-51-6
Category Impurity
Parent API
Formula -
Mol. Wt.
N-(5-amino-6-chloro-2-(propylthio)pyrimidin-4-yl)-N-((3aS,4R,6S,6aR)-6-(2-hydroxyethoxy)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)nitrous amide chemical structure
Custom Synthesis

N-(5-amino-6-chloro-2-(propylthio)pyrimidin-4-yl)-N-((3aS,4R,6S,6aR)-6-(2-hydroxyethoxy)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)nitrous amide

CAT No. CS-O-37825
CAS No. -
Category Impurity
Parent API Ticagrelor
Formula C17H26ClN5O5S
Mol. Wt. 447.94
N-(5-bromo-2-chloropyrimidin-4-yl)-N-cyclopentylnitrous amide chemical structure
Custom Synthesis

N-(5-bromo-2-chloropyrimidin-4-yl)-N-cyclopentylnitrous amide

CAT No. CS-O-46944
CAS No. -
Category Impurity
Parent API Ribociclib
Formula C9H10BrClN4O
Mol. Wt. 305.56
N-(5-Bromo-6-quinoxalinyl)quanidine Hydrochloride chemical structure
Custom Synthesis

N-(5-Bromo-6-quinoxalinyl)quanidine Hydrochloride

CAT No. CS-T-68468
CAS No. 1797986-78-7
Category Impurity
Parent API
Formula -
Mol. Wt.
N-(5-Chloro-2,1,3-benzothiadiazol-4-yl)-thiourea chemical structure
Custom Synthesis

N-(5-Chloro-2,1,3-benzothiadiazol-4-yl)-thiourea

CAT No. CS-T-11304
CAS No. 51323-05-8
Category Impurity
Parent API Tizanidine
Formula C7H5ClN4S2
Mol. Wt. 244.7
N-(5-chloro-2-methylphenyl)-2-(2-methyl-1H-benzo[d]imidazol-1-yl)acetamide chemical structure
Custom Synthesis

N-(5-chloro-2-methylphenyl)-2-(2-methyl-1H-benzo[d]imidazol-1-yl)acetamide

CAT No. CS-O-38776
CAS No. 721906-09-8
Category Impurity
Parent API
Formula C17H16ClN3O
Mol. Wt. 313.78
N-(5-Chloro-2-pyridinyl)-2-pyrazinecarboxamide chemical structure
Custom Synthesis

N-(5-Chloro-2-pyridinyl)-2-pyrazinecarboxamide

CAT No. CS-T-51032
CAS No. 349125-10-6
Category Impurity
Parent API Zopiclone
Formula C10H7ClN4O
Mol. Wt. 234.6
N-(5-Formyl-2-hydroxyphenyl)formamide chemical structure
Custom Synthesis

N-(5-Formyl-2-hydroxyphenyl)formamide

CAT No. CS-T-76868
CAS No. 903563-43-9
Category Impurity
Parent API Formoterol
Formula C8H7NO3
Mol. Wt. 165.2
N-(6-((2,3-dioxopropyl)(2-hydroxypropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-((2,3-dioxopropyl)(2-hydroxypropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63230
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C26H24F3N3O5
Mol. Wt. 515.49
N-(6-((hydroxymethyl)(2-oxopropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-((hydroxymethyl)(2-oxopropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63227
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C24H22F3N3O4
Mol. Wt. 473.45
N-(6-(2,6-dimethylmorpholino)-5-nitropyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-(2,6-dimethylmorpholino)-5-nitropyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63232
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C26H25F3N4O5
Mol. Wt. 530.50
N-(6-(2-hydroxy-6-methylmorpholino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-(2-hydroxy-6-methylmorpholino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63229
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C25H24F3N3O4
Mol. Wt. 487.48
N-(6-(allyl(2-oxopropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-(allyl(2-oxopropyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63228
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C26H24F3N3O3
Mol. Wt. 483.49
N-(6-(hydroxy(propyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide chemical structure
Custom Synthesis

N-(6-(hydroxy(propyl)amino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)-[1,1'-biphenyl]-3-carboxamide

CAT No. CS-O-63226
CAS No. -
Category Impurity
Parent API Sonidegib
Formula C23H22F3N3O3
Mol. Wt. 445.44
N-(6-Amino-1,2,3,4-tetrahydro-1-methyl-2,4-dioxo-5-pyrimidinyl)formamide chemical structure
Custom Synthesis

N-(6-Amino-1,2,3,4-tetrahydro-1-methyl-2,4-dioxo-5-pyrimidinyl)formamide

CAT No. CS-O-41334
CAS No. 14785-95-6
Category Impurity
Parent API Linagliptin
Formula C6H8N4O3
Mol. Wt. 184.2
N-(6-chloro-4-methyl-4-phenyl-4H-benzo[d][1,3]oxazin-2-yl)benzamide chemical structure
Custom Synthesis

N-(6-chloro-4-methyl-4-phenyl-4H-benzo[d][1,3]oxazin-2-yl)benzamide

CAT No. CS-O-61111
CAS No. 21802-00-6
Category Impurity
Parent API Etifoxine
Formula C22H17ClN2O2
Mol. Wt. 376.84
N-(6-trifluoromethoxybenzothiazol-2-yl) formamide chemical structure
Custom Synthesis

N-(6-trifluoromethoxybenzothiazol-2-yl) formamide

CAT No. CS-O-34546
CAS No. -
Category Impurity
Parent API
Formula C9H5F3N2O2S
Mol. Wt. 262.21

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.