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

Impurity Products

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

Showing 23953-23976 of 27540 products
Regadenoson Impurity A chemical structure
Custom Synthesis

Regadenoson Impurity A

CAT No. CS-T-48081
CAS No. 313348-16-2
Category Impurity
Parent API Regadenoson
Formula C16H19N7O6
Mol. Wt. 405.37
Regadenoson Impurity A (Acetate salt) chemical structure
Custom Synthesis

Regadenoson Impurity A (Acetate salt)

CAT No. CS-EO-03817
CAS No. 313348-16-2 (Freebase)
Category Impurity
Parent API Regadenoson
Formula C16H19N7O6 : C2H4O2
Mol. Wt. 405.4 : 60.1
Regorafenib acid Impurity chemical structure
Custom Synthesis

Regorafenib acid Impurity

CAT No. CS-O-52513
CAS No. 1187945-05-6
Category Impurity
Parent API Regorafenib
Formula C20H12ClF4N3O4
Mol. Wt. 469.77
Regorafenib Dipyrimidine Impurity chemical structure
Custom Synthesis

Regorafenib Dipyrimidine Impurity

CAT No. CS-O-36707
CAS No. -
Category Impurity
Parent API Regorafenib
Formula C20H17FN4O3
Mol. Wt. 380.4
Regorafenib EP Impurity B chemical structure
Custom Synthesis

Regorafenib EP Impurity B

CAT No. CS-O-54681
CAS No. 2141961-84-2
Category Impurity
Parent API Regorafenib
Formula C15H14FN3O3
Mol. Wt. 303.29
Regorafenib EP ImpurityE chemical structure
Custom Synthesis

Regorafenib EP ImpurityE

CAT No. CS-O-14436
CAS No. 2098799-13-2
Category Impurity
Parent API Regorafenib
Formula C35H23Cl2F7N6O5
Mol. Wt. 811.5
Rel - Fenoterol EP Impurity A chemical structure
Custom Synthesis

Rel - Fenoterol EP Impurity A

CAT No. CS-O-47719
CAS No. 107878-38-6
Category Impurity
Parent API Fenoterol
Formula C17H21NO4
Mol. Wt. 303.35
Rel 4-N-Desacetyl-5-N-acetyl Oseltamivir Acid chemical structure
Custom Synthesis

Rel 4-N-Desacetyl-5-N-acetyl Oseltamivir Acid

CAT No. CS-T-73947
CAS No. 1391047-93-0
Category Impurity
Parent API Oseltamivir
Formula -
Mol. Wt.
rel-(2S,4S)-Terconazole chemical structure
Custom Synthesis

rel-(2S,4S)-Terconazole

CAT No. CS-T-43339
CAS No. 1486497-66-8
Category Impurity
Parent API Terconazole
Formula C26H31Cl2N5O3
Mol. Wt. 532.5
rel-(2Z,7R,11S)-3,7,11,15-Tetramethyl-2-hexadecen-1-ol chemical structure
Custom Synthesis

rel-(2Z,7R,11S)-3,7,11,15-Tetramethyl-2-hexadecen-1-ol

CAT No. CS-O-39031
CAS No. 118100-93-9
Category Impurity
Parent API -
Formula C20H40O
Mol. Wt. 296.53
rel-(3aR,4S,6aS,7R,9aR,10aS)-10a-Hydroxy-7-isopropyl-1,4,9a-trimethyl-4,5,6,6a,7,8,9,9a,10,10a-decahydro-3aH-dicyclopenta[a,d]cycloocten-3-one chemical structure
Custom Synthesis

rel-(3aR,4S,6aS,7R,9aR,10aS)-10a-Hydroxy-7-isopropyl-1,4,9a-trimethyl-4,5,6,6a,7,8,9,9a,10,10a-decahydro-3aH-dicyclopenta[a,d]cycloocten-3-one

CAT No. CS-O-57639
CAS No. 1282042-37-8
Category Impurity
Parent API -
Formula C20H32O2
Mol. Wt. 304.47
rel-(3R,4S)-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-phenylpiperidine Hydrochloride chemical structure
Custom Synthesis

rel-(3R,4S)-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-phenylpiperidine Hydrochloride

CAT No. CS-O-33481
CAS No. 105834-22-8 (Freebase)
Category Impurity
Parent API
Formula -
Mol. Wt. 347.84
rel-(3R,5R)-Fluvastatin Sodium chemical structure
Custom Synthesis

rel-(3R,5R)-Fluvastatin Sodium

CAT No. CS-T-77342
CAS No. 93957-58-5
Category Impurity
Parent API Fluvastatin
Formula C24H25FNO4 : Na
Mol. Wt. 410.5 : 23.0
rel-(R,R)-Voriconazole chemical structure
Custom Synthesis

rel-(R,R)-Voriconazole

CAT No. CS-T-88019
CAS No. 137330-52-0
Category Impurity
Parent API Voriconazole
Formula -
Mol. Wt.
rel-(S,R,S,S)-Nebivolol Hydrochloride chemical structure
Custom Synthesis

rel-(S,R,S,S)-Nebivolol Hydrochloride

CAT No. CS-T-83172
CAS No. 1338823-20-3
Category Impurity
Parent API Nebivolol
Formula -
Mol. Wt.
rel-1-(1,1-Dimethylethyl) 3-methyl (3R,5R)-5-amino-1,3-piperidinedicarboxylate chemical structure
Custom Synthesis

rel-1-(1,1-Dimethylethyl) 3-methyl (3R,5R)-5-amino-1,3-piperidinedicarboxylate

CAT No. CS-O-54443
CAS No. 1208359-58-3
Category Impurity
Parent API -
Formula C12H22N2O4
Mol. Wt. 258.31
rel-all-trans 5,8-Epoxy Retinoic Acid chemical structure
Custom Synthesis

rel-all-trans 5,8-Epoxy Retinoic Acid

CAT No. CS-O-37660
CAS No. 129520-10-1
Category Impurity
Parent API Retinoic Acid
Formula C20H28O3
Mol. Wt. 316.43
rel-Cannabidiol chemical structure
Custom Synthesis

rel-Cannabidiol

CAT No. CS-O-40795
CAS No. 1212300-81-6
Category Impurity
Parent API Cannabidiol
Formula C19H26
Mol. Wt. 286.4
rel-Desfluoro Nebivolol Impurity chemical structure
Custom Synthesis

rel-Desfluoro Nebivolol Impurity

CAT No. CS-O-33834
CAS No. 1416402-13-5
Category Impurity
Parent API Nebivolol
Formula C22H26FNO4
Mol. Wt. 387.45
Rel-Ethambutol EP Impurity B DiHCl chemical structure
Custom Synthesis

Rel-Ethambutol EP Impurity B DiHCl

CAT No. CS-O-45651
CAS No. 32454-69-6
Category Impurity
Parent API Ethambutol
Formula C10H26Cl2N2O2
Mol. Wt. 277.23
rel-Gliclazide EP Impurity E chemical structure
Custom Synthesis

rel-Gliclazide EP Impurity E

CAT No. CS-EO-00175
CAS No. 1808087-53-7
Category Impurity
Parent API Gliclazide
Formula C15H19N3O3S
Mol. Wt. 321.4
rel-Misoprostol acid chemical structure
Custom Synthesis

rel-Misoprostol acid

CAT No. CS-O-58297
CAS No. 66792-31-2
Category Impurity
Parent API Misoprostol
Formula C21H36O5
Mol. Wt. 368.51
rel-N-Benzyl Nebivolol chemical structure
Custom Synthesis

rel-N-Benzyl Nebivolol

CAT No. CS-O-33749
CAS No. 876666-07-8
Category Impurity
Parent API Nebivolol
Formula C29H31F2NO4
Mol. Wt. 495.56
rel-Pinaverium bromide trans-2-ethanol impurity chemical structure
Custom Synthesis

rel-Pinaverium bromide trans-2-ethanol impurity

CAT No. CS-O-57475
CAS No. 1417886-28-2
Category Impurity
Formula C11H20O
Mol. Wt. 168.28

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.