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 481-504 of 27540 products
All In Stock Custom Synthesis
4-Methylbenzylidene Camphor chemical structure
In Stock

4-Methylbenzylidene Camphor

CAT No. CS-T-33268
CAS No. 36861-47-9
Category Impurity
Parent API
Formula -
Mol. Wt.
4-Methylbiphenyl-2-carboxylic Acid chemical structure
In Stock

4-Methylbiphenyl-2-carboxylic Acid

CAT No. CS-T-33299
CAS No. 7148-03-0
Category Impurity
Parent API Telmisartan
Formula C14H12O2
Mol. Wt. 212.2
4-Methylphthalic anhydride chemical structure
In Stock

4-Methylphthalic anhydride

CAT No. CS-DV-02883
CAS No. 19438-61-0
Category Impurity
Parent API -
Formula -
Mol. Wt. -
4-Methylpyridine chemical structure
In Stock

4-Methylpyridine

CAT No. CS-T-34337
CAS No. 108-89-4
Category Impurity
Parent API Pyridine
Formula C6H7N
Mol. Wt. 93.13
4-Nitro-3-(trifluoromethyl)aniline chemical structure
In Stock

4-Nitro-3-(trifluoromethyl)aniline

CAT No. CS-O-32024
CAS No. 393-11-3
Category Impurity
Parent API Flutamide
Formula C7H5F3N2O2
Mol. Wt. 206.12
4-Nitrobenzoyl Varenicline chemical structure
In Stock

4-Nitrobenzoyl Varenicline

CAT No. CS-T-83249
CAS No. 1329651-19-5
Category Impurity
Parent API Varenicline
Formula C20H16N4O4
Mol. Wt. 376.4
4-Nitrophthalimide chemical structure
In Stock

4-Nitrophthalimide

CAT No. CS-DJ-01125
CAS No. 89-40-7
Category Impurity
Parent API Citalopram
Formula C8H4N2O4
Mol. Wt. 192.1
4-Nitrophthalonitrile chemical structure
In Stock

4-Nitrophthalonitrile

CAT No. CS-M-56658
CAS No. 31643-49-9
Category Impurity
Parent API Febuxostat
Formula C8H3N3O2
Mol. Wt. 173.13
4-NP-SCA chemical structure
In Stock

4-NP-SCA

CAT No. CS-W-00158
CAS No. 5315-87-7
Category Impurity
Parent API Semicarbazone
Formula C8H8N4O3
Mol. Wt. -
4-Oxoadamantane-1-carboxylic acid chemical structure
In Stock

4-Oxoadamantane-1-carboxylic acid

CAT No. CS-M-46082
CAS No. 56674-87-4
Category Impurity
Parent API Saxagliptin
Formula C11H14O3
Mol. Wt. 194.2
4ß-Hydroxy Cholesterol chemical structure
In Stock

4ß-Hydroxy Cholesterol

CAT No. CS-T-79575
CAS No. 17320-10-4
Category Impurity
Parent API Cholesterol
Formula C27H46O2
Mol. Wt. 402.65
4-Trifluoromethylphenol chemical structure
In Stock

4-Trifluoromethylphenol

CAT No. CS-T-45348
CAS No. 402-45-9
Category Impurity
Parent API Fluoxetine
Formula C7H5F3O
Mol. Wt. 162.11
5-(t-Boc-amino)-1-pentyl-p-toluenesulfonate chemical structure
In Stock

5-(t-Boc-amino)-1-pentyl-p-toluenesulfonate

CAT No. CS-T-07433
CAS No. 118811-34-0
Category Impurity
Parent API
Formula -
Mol. Wt.
5,5-Dibromoacetyl salicylamide chemical structure
In Stock

5,5-Dibromoacetyl salicylamide

CAT No. CS-EO-00684
CAS No.
Category Impurity
Parent API Labetalol
Formula C9H7Br2NO3
Mol. Wt. 336.96
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone chemical structure
In Stock

5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone

CAT No. CS-T-19570
CAS No. 4803-74-1
Category Impurity
Parent API Donepezil
Formula C17H15NO3
Mol. Wt. 281.31
5,6-Trans Bimatoprost chemical structure
In Stock

5,6-Trans Bimatoprost

CAT No. CS-O-07369
CAS No. 1163135-95-2
Category Impurity
Parent API Bimatoprost
Formula C25H37NO4
Mol. Wt. 415.57
5-[(1E)-2-(4-Bromophenyl)Ethenyl]-1,3-Benzenediol chemical structure
In Stock

5-[(1E)-2-(4-Bromophenyl)Ethenyl]-1,3-Benzenediol

CAT No. CS-M-46739
CAS No. 1224713-90-9
Category Impurity
Parent API Resveratrol
Formula C14H11BrO2
Mol. Wt. 291.14
5-[2-(4-methylphenyl)phenyl]-1-trityltetrazole chemical structure
In Stock

5-[2-(4-methylphenyl)phenyl]-1-trityltetrazole

CAT No. CS-T-45970
CAS No. 124750-53-4
Category Impurity
Parent API Losartan
Formula C33H26N4
Mol. Wt. 478.6
5-Acetylsalicylamide chemical structure
In Stock

5-Acetylsalicylamide

CAT No. CS-T-01149
CAS No. 40187-51-7
Category Impurity
Parent API Labetalol
Formula C9H9NO3
Mol. Wt. 179.17
5a-Dihydrocortisol chemical structure
In Stock

5a-Dihydrocortisol

CAT No. CS-T-53031
CAS No. 516-41-6
Category Impurity
Parent API Cortisol
Formula C21H32O5
Mol. Wt. 364.48
5-Alpha-Cholestan-3-one chemical structure
In Stock

5-Alpha-Cholestan-3-one

CAT No. CS-O-06317
CAS No. 566-88-1
Category Impurity
Parent API Cholestan
Formula C27H46O
Mol. Wt. 386.65
5-Amino-2-chloropyridine chemical structure
In Stock

5-Amino-2-chloropyridine

CAT No. CS-M-06318
CAS No. 5350-93-6
Category Impurity
Parent API Edoxaban
Formula C5H5ClN2
Mol. Wt. 128.56
5-Bromo-3-[[(2S)-1-methyl-2-pyrrolidinyl]methyl]-1H-indole impurity chemical structure
In Stock

5-Bromo-3-[[(2S)-1-methyl-2-pyrrolidinyl]methyl]-1H-indole impurity

CAT No. CS-T-94281
CAS No. 208464-41-9
Category Impurity
Parent API Eletriptan
Formula C14H17BrN2
Mol. Wt. 293.20​
5-Bromo-3-pyridinecarboxylic acid chemical structure
In Stock

5-Bromo-3-pyridinecarboxylic acid

CAT No. CS-M-07597
CAS No. 20826-04-4
Category Impurity
Parent API Nicergoline
Formula C6H4BrNO2
Mol. Wt. 202.01

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.