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]

Impurity Products

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

Showing 9889-9912 of 27575 products
4-Fluoro-2-methyl-1-propyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzimidazole chemical structure
Custom Synthesis

4-Fluoro-2-methyl-1-propyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzimidazole

CAT No. CS-O-54610
CAS No. 1844847-63-7
Category Impurity
Parent API -
Formula C17H24BFN2O2
Mol. Wt. 318.19
4-Fluoro-3-methoxyphenylacetic acid chemical structure
Custom Synthesis

4-Fluoro-3-methoxyphenylacetic acid

CAT No. CS-M-08707
CAS No. 78495-65-5
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Fluoroaniline HCl chemical structure
Custom Synthesis

4-Fluoroaniline HCl

CAT No. CS-EO-03390
CAS No. 2146-07-08
Category Impurity
Parent API -
Formula C6H6FN : HCl
Mol. Wt. 111.1 : 36.5
4-Fluorobutyrfentanyl chemical structure
Custom Synthesis

4-Fluorobutyrfentanyl

CAT No. CS-EK-01347
CAS No. 244195-31-1
Category Impurity
Parent API Fentanyl
Formula -
Mol. Wt.
4-Fluoroephedrine chemical structure
Custom Synthesis

4-Fluoroephedrine

CAT No. CS-T-75272
CAS No. 63009-92-7
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Fluoroephedrone Hydrochloride chemical structure
Custom Synthesis

4-Fluoroephedrone Hydrochloride

CAT No. CS-T-30689
CAS No. 7589-35-7
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Fluoroisobutyryl fentanyl chemical structure
Custom Synthesis

4-Fluoroisobutyryl fentanyl

CAT No. CS-EH-00177
CAS No. 244195-32-2
Category Impurity
Parent API Fentanyl
Formula C23H29FN2O
Mol. Wt. 368.49
4-FluoroLetermovir Impurity chemical structure
Custom Synthesis

4-FluoroLetermovir Impurity

CAT No. CS-O-46618
CAS No. -
Category Impurity
Parent API Letermovir
Formula C29H28F4N4O4
Mol. Wt. 572.55
4-Fluoro-N-[E-Phenylmethylidine)aniline impurity chemical structure
Custom Synthesis

4-Fluoro-N-[E-Phenylmethylidine)aniline impurity

CAT No. CS-O-16058
CAS No. 83306-62-1
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Fmoc-3(R)-morpholinecarboxylic Acid chemical structure
Custom Synthesis

4-Fmoc-3(R)-morpholinecarboxylic Acid

CAT No. CS-T-74684
CAS No. 942153-03-9
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Fmoc-3(S)-morpholinecarboxylic Acid chemical structure
Custom Synthesis

4-Fmoc-3(S)-morpholinecarboxylic Acid

CAT No. CS-T-74981
CAS No. 281655-37-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Formyl Loratadine chemical structure
Custom Synthesis

4-Formyl Loratadine

CAT No. CS-T-55045
CAS No. 1076198-16-7
Category Impurity
Parent API Loratadine
Formula -
Mol. Wt.
4-Formylmethyl-5-methyl-1, 3-dioxol-2-one chemical structure
Custom Synthesis

4-Formylmethyl-5-methyl-1, 3-dioxol-2-one

CAT No. CS-O-37837
CAS No. -
Category Impurity
Parent API
Formula C6H6O4
Mol. Wt. 142.11
4-Formylpiperidine chemical structure
Custom Synthesis

4-Formylpiperidine

CAT No. CS-T-75977
CAS No. 50675-20-2
Category Impurity
Parent API
Formula -
Mol. Wt.
4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-3-hydroxy-5,7-dimethoxy- chemical structure
Custom Synthesis

4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-3-hydroxy-5,7-dimethoxy-

CAT No. CS-DV-02808
CAS No. 1244-78-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Hydrazino-1-methylpiperidine chemical structure
Custom Synthesis

4-Hydrazino-1-methylpiperidine

CAT No. CS-M-08015
CAS No. 51304-64-4
Category Impurity
Parent API
Formula -
Mol. Wt.
4-HYDRAZINO-BENZAMIDE HCL chemical structure
Custom Synthesis

4-HYDRAZINO-BENZAMIDE HCL

CAT No. CS-T-94734
CAS No. 40566-97-0
Category Impurity
Parent API -
Formula C7H10ClN3O
Mol. Wt. 187.63
4-Hydrazino-benzoic acid ethyl ester chemical structure
Custom Synthesis

4-Hydrazino-benzoic acid ethyl ester

CAT No. CS-DV-02812
CAS No. 14685-90-6
Category Impurity
Parent API
Formula C9H12N2O2
Mol. Wt. 180.2
4-Hydroxy Amphetamine chemical structure
Custom Synthesis

4-Hydroxy Amphetamine

CAT No. CS-O-60971
CAS No. 103-86-6
Category Impurity
Parent API Amphetamine
Formula C9H13NO
Mol. Wt. 151.21
4-Hydroxy Atorvastatin Hemicalcium Salt chemical structure
Custom Synthesis

4-Hydroxy Atorvastatin Hemicalcium Salt

CAT No. CS-T-79380
CAS No. 1263176-34-6
Category Impurity
Parent API Atorvastatin
Formula C66H68CaF2N4O12
Mol. Wt. 1187.34
4-Hydroxy Atorvastatin Monosodium chemical structure
Custom Synthesis

4-Hydroxy Atorvastatin Monosodium

CAT No. CS-O-06084
CAS No. 163217-71-8
Category Impurity
Parent API Atorvastatin
Formula C33H34FN2NaO6
Mol. Wt. 596.62
4-Hydroxy Benzeneacetic Acid 2-(Dimethylamino)-2-oxoethyl Ester chemical structure
Custom Synthesis

4-Hydroxy Benzeneacetic Acid 2-(Dimethylamino)-2-oxoethyl Ester

CAT No. CS-T-78496
CAS No. 59721-16-3
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Hydroxy Fingolimod Impurity chemical structure
Custom Synthesis

4-Hydroxy Fingolimod Impurity

CAT No. CS-O-63067
CAS No. 162361-49-1
Category Impurity
Parent API Fingolimod
Formula C19H33NO3
Mol. Wt. 323.48
4-Hydroxy Flibanserin chemical structure
Custom Synthesis

4-Hydroxy Flibanserin

CAT No. CS-O-59306
CAS No.
Category Impurity
Parent API Flibanserin
Formula C20H21F3N4O2
Mol. Wt. 406.41

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.