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 sales@clearsynth.com
Categories / Impurity

Impurity Products

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

Showing 9985-10008 of 27565 products
All In Stock Custom Synthesis
4-Morpholin-4-yl-1,3,5-triazin-2-amine chemical structure
Custom Synthesis

4-Morpholin-4-yl-1,3,5-triazin-2-amine

CAT No. CS-M-47526
CAS No. 2045-25-2
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Morpholin-4-ylaniline chemical structure
Custom Synthesis

4-Morpholin-4-ylaniline

CAT No. CS-M-25847
CAS No. 2524-67-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Morpholinoaniline chemical structure
Custom Synthesis

4-Morpholinoaniline

CAT No. CS-M-25847-5GM
CAS No. 2524-67-6
Category Impurity
Parent API -
Formula -
Mol. Wt. -
4-n-Butylpiperidine hydrochloride chemical structure
Custom Synthesis

4-n-Butylpiperidine hydrochloride

CAT No. CS-M-52230
CAS No. 372195-85-2
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Nitro-2-thiocyano-aniline chemical structure
Custom Synthesis

4-Nitro-2-thiocyano-aniline

CAT No. CS-O-56761
CAS No. 68310-01-0
Category Impurity
Parent API Albendazole
Formula C7H5N3O2S
Mol. Wt. 195.2
4-Nitroaniline Hydrochloride chemical structure
Custom Synthesis

4-Nitroaniline Hydrochloride

CAT No. CS-EO-03696
CAS No. 15873-51-5
Category Impurity
Parent API Mirabegron
Formula C6H6N2O2 : HCl
Mol. Wt. 138.1 : 36.5
4-Nitrophenyl 2,3,4-tri-O-acetyl-β-D-glucuronic Acid, Methyl Ester chemical structure
Custom Synthesis

4-Nitrophenyl 2,3,4-tri-O-acetyl-β-D-glucuronic Acid, Methyl Ester

CAT No. CS-T-59592
CAS No. 18472-49-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4-nitrophenyl 2,6-bis((tert-butoxycarbonyl)amino)hexanoate chemical structure
Custom Synthesis

4-nitrophenyl 2,6-bis((tert-butoxycarbonyl)amino)hexanoate

CAT No. CS-O-39573
CAS No. 2012567-15-4
Category Impurity
Parent API Lisdexamfetamine
Formula C22H33N3O8
Mol. Wt. 467.51
4-Nitropyridin-2-ol chemical structure
Custom Synthesis

4-Nitropyridin-2-ol

CAT No. CS-DV-02892
CAS No. 4487-51-8
Category Impurity
Parent API
Formula -
Mol. Wt.
4-O-β-D-Mannopyranosyl-D-mannose chemical structure
Custom Synthesis

4-O-β-D-Mannopyranosyl-D-mannose

CAT No. CS-T-31571
CAS No. 14417-51-7
Category Impurity
Parent API
Formula C12H22O11
Mol. Wt. 342.30
4'-O-Carbobenzoxyepipodophyllotoxin chemical structure
Custom Synthesis

4'-O-Carbobenzoxyepipodophyllotoxin

CAT No. CS-O-45238
CAS No. -
Category Impurity
Parent API podophyllotoxin
Formula C29H26O10
Mol. Wt. 534.51
4-octene-1,8-dicarboxylic acid Dimide chemical structure
Custom Synthesis

4-octene-1,8-dicarboxylic acid Dimide

CAT No. CS-O-47917
CAS No. -
Category Impurity
Parent API Bimatoprost
Formula C10H18N2O2
Mol. Wt. 198.27
4'-O-Demethyl-pantoprazole sulfide chemical structure
Custom Synthesis

4'-O-Demethyl-pantoprazole sulfide

CAT No. CS-TB-13789
CAS No. 141854-21-9
Category Impurity
Parent API Pantoprazole
Formula C15H13F2N3O3S
Mol. Wt. 353.3
4-Oleoylmorpholine chemical structure
Custom Synthesis

4-Oleoylmorpholine

CAT No. CS-O-54864
CAS No. 5299-52-5
Category Impurity
Parent API .
Formula C22H41NO2
Mol. Wt. 351.57
4-O-Methyl-D-glucuronic Acid chemical structure
Custom Synthesis

4-O-Methyl-D-glucuronic Acid

CAT No. CS-T-58234
CAS No. 4120-73-4
Category Impurity
Parent API
Formula C7H12O7
Mol. Wt. 208.17
4-oxo Cetirizine Impurity chemical structure
Custom Synthesis

4-oxo Cetirizine Impurity

CAT No. CS-O-43076
CAS No. -
Category Impurity
Parent API Cetirizine
Formula C19H21ClN2O2
Mol. Wt. 344.84
4-Oxo Gemifloxacin methanesulfonic acid salt chemical structure
Custom Synthesis

4-Oxo Gemifloxacin methanesulfonic acid salt

CAT No. CS-O-49008
CAS No. 284474-31-3 (Freebase)
Category Impurity
Parent API Gemifloxacin
Formula C18H21FN4O7S
Mol. Wt. 456.45
4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester chemical structure
Custom Synthesis

4-oxo-1,4-dihydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester

CAT No. CS-DV-02895
CAS No. 6861-83-2
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Oxo-2,2,6,6-tetramethyl-3-piperidinecarboxylic Acid Methyl Ester chemical structure
Custom Synthesis

4-Oxo-2,2,6,6-tetramethyl-3-piperidinecarboxylic Acid Methyl Ester

CAT No. CS-T-38485
CAS No. 1159977-55-5
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Oxo-Dimeric-Isotretinoin chemical structure
Custom Synthesis

4-Oxo-Dimeric-Isotretinoin

CAT No. CS-O-59365
CAS No.
Category Impurity
Parent API Isotretinoin
Formula C35H46O3
Mol. Wt. 514.74
4-Oxovalproic Acid chemical structure
Custom Synthesis

4-Oxovalproic Acid

CAT No. CS-T-94729
CAS No. 688-04-0
Category Impurity
Parent API valproic Acid
Formula C8H14O3
Mol. Wt. 158.19
4-Phenanthrenecarboxylic acid chemical structure
Custom Synthesis

4-Phenanthrenecarboxylic acid

CAT No. CS-ED-41566
CAS No. 42156-92-3
Category Impurity
Parent API
Formula C15H10O2
Mol. Wt. 222.24
4-Phenethyl-piperidine chemical structure
Custom Synthesis

4-Phenethyl-piperidine

CAT No. CS-M-09760
CAS No. 24152-41-8
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Phenol,2,6-bis(1,1-dimethylethyl)-4-ethoxy chemical structure
Custom Synthesis

4-Phenol,2,6-bis(1,1-dimethylethyl)-4-ethoxy

CAT No. CS-O-39733
CAS No. 5442-35-3
Category Impurity
Parent API Clobetasol Propionate
Formula C16H26O2
Mol. Wt. 250.4

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.