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 6049-6072 of 27558 products
All In Stock Custom Synthesis
(2S-trans)-Diltiazem Hydrochloride chemical structure
Custom Synthesis

(2S-trans)-Diltiazem Hydrochloride

CAT No. CS-T-91958
CAS No. 103532-26-9
Category Impurity
Parent API Diltiazem
Formula -
Mol. Wt.
(2-tert-Butyl-phenoxy)-acetic acid chemical structure
Custom Synthesis

(2-tert-Butyl-phenoxy)-acetic acid

CAT No. CS-M-08906
CAS No. 19271-90-0
Category Impurity
Parent API
Formula -
Mol. Wt.
(2Z)-{2-[(Chloroacetyl)amino]-1,3-thiazol-4-yl}(methoxyimino)acetic acid chemical structure
Custom Synthesis

(2Z)-{2-[(Chloroacetyl)amino]-1,3-thiazol-4-yl}(methoxyimino)acetic acid

CAT No. CS-M-25429
CAS No. 64486-18-6
Category Impurity
Parent API
Formula -
Mol. Wt.
(2Z)-1-Chloro-6,6-dimethyl-2-hepten-4-yne chemical structure
Custom Synthesis

(2Z)-1-Chloro-6,6-dimethyl-2-hepten-4-yne

CAT No. CS-T-72266
CAS No. 635708-74-6
Category Impurity
Parent API Terbinafine
Formula C9H13Cl
Mol. Wt. 156.7
(2Z)-3-Ethoxy-2-methylacrylaldehyde chemical structure
Custom Synthesis

(2Z)-3-Ethoxy-2-methylacrylaldehyde

CAT No. CS-MM-00632
CAS No. 42588-57-8
Category Impurity
Parent API
Formula C6H10O2
Mol. Wt. 114.15 g/mol
(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin -7(8H)-yl]-1-(2,4,5-trifluorophenyl)but-2-en-2-amine chemical structure
Custom Synthesis

(2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin -7(8H)-yl]-1-(2,4,5-trifluorophenyl)but-2-en-2-amine

CAT No. CS-T-38382
CAS No. 767340-03-4
Category Impurity
Parent API
Formula C16H13F6N5O
Mol. Wt. 405.30
(2Z)-Afatinib chemical structure
Custom Synthesis

(2Z)-Afatinib

CAT No. CS-T-65303
CAS No. 1680184-59-1
Category Impurity
Parent API Afatinib
Formula C24H25ClFN5O3
Mol. Wt. 485.9
(2β,3α,5α)-21-Chloro-3-hydroxy-2-(4-morpholinyl)-pregnan-20-one chemical structure
Custom Synthesis

(2β,3α,5α)-21-Chloro-3-hydroxy-2-(4-morpholinyl)-pregnan-20-one

CAT No. CS-T-73040
CAS No. 156685-94-8
Category Impurity
Parent API
Formula -
Mol. Wt.
(3-(((2R,3S)-2-((R)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-phenylmorpholino)methyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)phosphonic acid chemical structure
Custom Synthesis

(3-(((2R,3S)-2-((R)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-phenylmorpholino)methyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)phosphonic acid

CAT No. CS-O-40784
CAS No. 2578084-26-9
Category Impurity
Parent API Fosaprepitant
Formula C23H23F6N4O6P
Mol. Wt. 596.42
(3-(((2S,3S)-2-((S)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(4-fluorophenyl)morpholino)methyl)-5 chemical structure
Custom Synthesis

(3-(((2S,3S)-2-((S)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(4-fluorophenyl)morpholino)methyl)-5

CAT No. CS-O-35964
CAS No. -
Category Impurity
Parent API
Formula -
Mol. Wt. 1004.83
(3-(3,3-Dimethylureido)phenyl dimethylcarbamate) chemical structure
Custom Synthesis

(3-(3,3-Dimethylureido)phenyl dimethylcarbamate)

CAT No. CS-O-34586
CAS No. 4939-59-7
Category Impurity
Parent API Neostigmine
Formula C12H17N3O3
Mol. Wt. 251.3
(3-(4-Fluorophenoxy)-6-methoxy2-(4-methoxyphenyl)-1- benzothiophene 1-oxide) chemical structure
Custom Synthesis

(3-(4-Fluorophenoxy)-6-methoxy2-(4-methoxyphenyl)-1- benzothiophene 1-oxide)

CAT No. CS-O-38327
CAS No. 477762-74-6
Category Impurity
Parent API
Formula C22H17FO4S
Mol. Wt. 396.43
(3-(5-carboxypentyl)-2,3-dimethyl-1-(3-sulfonatopropyl)-3H-indol-1-ium-5-sulfonate) chemical structure
Custom Synthesis

(3-(5-carboxypentyl)-2,3-dimethyl-1-(3-sulfonatopropyl)-3H-indol-1-ium-5-sulfonate)

CAT No. CS-O-36459
CAS No. -
Category Impurity
Parent API
Formula C19H26NO8S2
Mol. Wt. 461
(3,4)-cis-tert-Butyl3-amino-4-fluoropiperidine-1-carboxylate chemical structure
Custom Synthesis

(3,4)-cis-tert-Butyl3-amino-4-fluoropiperidine-1-carboxylate

CAT No. CS-DL-00798
CAS No. 1273565-65-3
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,4-Dihydro-1H-isoquinolin-2-yl)-acetic acid chemical structure
Custom Synthesis

(3,4-Dihydro-1H-isoquinolin-2-yl)-acetic acid

CAT No. CS-M-09471
CAS No. 731810-79-0
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,4-Dihydro-2H-benzo[b][1,4]dioxepine-7-sulfonylamino)-acetic acid chemical structure
Custom Synthesis

(3,4-Dihydro-2H-benzo[b][1,4]dioxepine-7-sulfonylamino)-acetic acid

CAT No. CS-M-09820
CAS No. 790272-41-2
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,4-Dimethoxyphenyl)acetic acid chemical structure
Custom Synthesis

(3,4-Dimethoxyphenyl)acetic acid

CAT No. CS-M-42923
CAS No. 93-40-3
Category Impurity
Parent API ivabradine hydrochloride
Formula C10H12O4
Mol. Wt. 196.20
(3,4-Dimethoxypyridin-2-yl)methyl acetate chemical structure
Custom Synthesis

(3,4-Dimethoxypyridin-2-yl)methyl acetate

CAT No. CS-O-15946
CAS No. 102625-99-0
Category Impurity
Parent API Pantoprazole
Formula C10H13NO4
Mol. Wt. 211.2
(3,4-Dimethyl-6-oxo-1,6-dihydro-pyrano[2,3-c]-pyrazol-5-yl)-acetic acid chemical structure
Custom Synthesis

(3,4-Dimethyl-6-oxo-1,6-dihydro-pyrano[2,3-c]-pyrazol-5-yl)-acetic acid

CAT No. CS-M-10230
CAS No. 879025-21-5
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,4-Dimethylphenyl)hydrazine chemical structure
Custom Synthesis

(3,4-Dimethylphenyl)hydrazine

CAT No. CS-M-25833
CAS No. 13636-53-8
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,5,6-Trifluoropyridin-2-yl)acetic acid chemical structure
Custom Synthesis

(3,5,6-Trifluoropyridin-2-yl)acetic acid

CAT No. CS-M-26300
CAS No. 1119450-11-1
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,5-Dimethyl-1H-pyrazol-4-yl)-acetic acid chemical structure
Custom Synthesis

(3,5-Dimethyl-1H-pyrazol-4-yl)-acetic acid

CAT No. CS-M-08561
CAS No. 32701-75-0
Category Impurity
Parent API
Formula -
Mol. Wt.
(3,6-Dioxo-1,2,3,6-tetrahydropyridazin-4-yl)-acetic acid chemical structure
Custom Synthesis

(3,6-Dioxo-1,2,3,6-tetrahydropyridazin-4-yl)-acetic acid

CAT No. CS-M-17258
CAS No. 121073-74-3
Category Impurity
Parent API
Formula -
Mol. Wt.
(3a,5ß,12a)-12-(Acetyloxy)-3-hydroxycholan-24-oic acid chemical structure
Custom Synthesis

(3a,5ß,12a)-12-(Acetyloxy)-3-hydroxycholan-24-oic acid

CAT No. CS-O-43006
CAS No. 76756-34-8
Category Impurity
Parent API cholic acid
Formula C26H42O5
Mol. Wt. 434.61

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.