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Categories / Impurity

Impurity Products

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

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4,5-Dihydro Drospirenone 3-Sulfate Sodium Salt chemical structure
Custom Synthesis

4,5-Dihydro Drospirenone 3-Sulfate Sodium Salt

CAT No. CS-OO-00061
CAS No.
Category Impurity
Parent API Drospirenone
Formula C24H33NaO6S
Mol. Wt. 472.57 g/mol
4,5-Dihydro Prednisone chemical structure
Custom Synthesis

4,5-Dihydro Prednisone

CAT No. CS-O-59494
CAS No. 103957-08-0
Category Impurity
Parent API Prednisone
Formula C21H28O5
Mol. Wt. 360.44
4,5-Dihydro-2-methoxy-1H-imidazole chemical structure
Custom Synthesis

4,5-Dihydro-2-methoxy-1H-imidazole

CAT No. CS-T-53066
CAS No. 28118-54-9
Category Impurity
Parent API
Formula -
Mol. Wt.
4,5-Dihydro-4-methyl-5-(4-methylphenyl)-2-Oxazolamine chemical structure
Custom Synthesis

4,5-Dihydro-4-methyl-5-(4-methylphenyl)-2-Oxazolamine

CAT No. CS-T-90057
CAS No. 1445569-01-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4,5-Dihydro-6-ketonorethindrone chemical structure
Custom Synthesis

4,5-Dihydro-6-ketonorethindrone

CAT No. CS-F-00173
CAS No. 53697-08-8
Category Impurity
Parent API
Formula C20H26O3
Mol. Wt. 314.42842
4,5-Dihydropiperlonguminine chemical structure
Custom Synthesis

4,5-Dihydropiperlonguminine

CAT No. CS-O-47329
CAS No. 23512-53-0
Category Impurity
Parent API piperlonguminine
Formula C16H21NO3
Mol. Wt. 275.34
4,5-Dimethoxy-1-(aminomethyl)benzocyclobutane chemical structure
Custom Synthesis

4,5-Dimethoxy-1-(aminomethyl)benzocyclobutane

CAT No. CS-T-91168
CAS No. 73344-75-9
Category Impurity
Parent API Ivabradine
Formula C11H15NO2
Mol. Wt. 193.25
4,5-Epoxy Eplerenone chemical structure
Custom Synthesis

4,5-Epoxy Eplerenone

CAT No. CS-O-34500
CAS No. 209253-73-6
Category Impurity
Parent API Eplerenone
Formula C24H30O7
Mol. Wt. 430.5
4,5-Epoxy-19-nortestosterone chemical structure
Custom Synthesis

4,5-Epoxy-19-nortestosterone

CAT No. CS-T-54335
CAS No. 52153-24-9
Category Impurity
Parent API Testosterone
Formula -
Mol. Wt.
4,6-Dichloro-1,2-Dihydro-2-Oxo-3-CyanoPyridine chemical structure
Custom Synthesis

4,6-Dichloro-1,2-Dihydro-2-Oxo-3-CyanoPyridine

CAT No. CS-O-37791
CAS No. 858430-32-7
Category Impurity
Parent API -
Formula C6H2Cl2N2O
Mol. Wt. 189.0
4,6-Dichloro-1,3,5-triazin-2-amine chemical structure
Custom Synthesis

4,6-Dichloro-1,3,5-triazin-2-amine

CAT No. CS-M-28154
CAS No. 933-20-0
Category Impurity
Parent API
Formula -
Mol. Wt.
4,6-dichloro-N-hydroxy-2-(propylthio) pyridin-5-amine chemical structure
Custom Synthesis

4,6-dichloro-N-hydroxy-2-(propylthio) pyridin-5-amine

CAT No. CS-O-34353
CAS No. -
Category Impurity
Parent API
Formula C8H10Cl2N2OS
Mol. Wt. 253.15
4,6-Didemethyl Papaverine chemical structure
Custom Synthesis

4,6-Didemethyl Papaverine

CAT No. CS-T-52728
CAS No. 57170-09-9
Category Impurity
Parent API
Formula -
Mol. Wt.
4,6-Dihydroxy Duloxetine Glucuronide chemical structure
Custom Synthesis

4,6-Dihydroxy Duloxetine Glucuronide

CAT No. CS-O-65574
CAS No. -
Category Impurity
Parent API Duloxetine
Formula C24H27NO9S
Mol. Wt. 505.54
4,6-Dihydroxy-5-methoxypyrimidine chemical structure
Custom Synthesis

4,6-Dihydroxy-5-methoxypyrimidine

CAT No. CS-DL-00718
CAS No. 5193-84-0
Category Impurity
Parent API Fluorouracil
Formula C5H6N2O3
Mol. Wt. 142.1
4,6-Dihydroxypyridazine-3-carboxylic acid chemical structure
Custom Synthesis

4,6-Dihydroxypyridazine-3-carboxylic acid

CAT No. CS-O-48828
CAS No. 1442437-21-9
Category Impurity
Parent API .
Formula C5H4N2O4
Mol. Wt. 156.10
4,6-Dimethyl-2H,8H-pyrano[3,2-g]chromene-2,8-dione chemical structure
Custom Synthesis

4,6-Dimethyl-2H,8H-pyrano[3,2-g]chromene-2,8-dione

CAT No. CS-O-60460
CAS No. 54107-67-4
Category Impurity
Parent API -
Formula C14H10O4
Mol. Wt. 242.23
4,6-Dimethyl-5-morpholin-4-ylpyrimidin-2-amine chemical structure
Custom Synthesis

4,6-Dimethyl-5-morpholin-4-ylpyrimidin-2-amine

CAT No. CS-M-26908
CAS No. 1119451-57-8
Category Impurity
Parent API
Formula -
Mol. Wt.
4,6-dinitro Lenalidomide chemical structure
Custom Synthesis

4,6-dinitro Lenalidomide

CAT No. CS-T-103264
CAS No. -
Category Impurity
Parent API Lenalidomide
Formula C13H10N4O7
Mol. Wt. 334.24
4,7-seco-Tebipenemoic Acid Pivoxil chemical structure
Custom Synthesis

4,7-seco-Tebipenemoic Acid Pivoxil

CAT No. CS-T-87096
CAS No. 1380688-27-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4,9-dichloro-2,7-bis(propylthio)pyrimido[4,5-g]pteridine chemical structure
Custom Synthesis

4,9-dichloro-2,7-bis(propylthio)pyrimido[4,5-g]pteridine

CAT No. CS-O-48767
CAS No. -
Category Impurity
Parent API Ticagrelor
Formula C14H14Cl2N6S2
Mol. Wt. 401.34
4,9-Diisobutyl-1,6-diazecane-2,7-dione chemical structure
Custom Synthesis

4,9-Diisobutyl-1,6-diazecane-2,7-dione

CAT No. CS-T-91780
CAS No. 1990538-03-8
Category Impurity
Parent API Pregabalin
Formula C16H30N2O2
Mol. Wt. 282.4
4-[((2R)-Hydroxy-3-phthalimido)propylamine]phenyl-3-morpholine chemical structure
Custom Synthesis

4-[((2R)-Hydroxy-3-phthalimido)propylamine]phenyl-3-morpholine

CAT No. CS-T-79082
CAS No. 1798887-61-2
Category Impurity
Parent API Linezolid
Formula C21H23N3O4
Mol. Wt. 381.4
4-[(1Z/E)-1-(4-chlorophenyl)-3-morpholin-4-yl-3-oxoprop-1-enyl]-2-methoxyphenol chemical structure
Custom Synthesis

4-[(1Z/E)-1-(4-chlorophenyl)-3-morpholin-4-yl-3-oxoprop-1-enyl]-2-methoxyphenol

CAT No. CS-O-03447
CAS No. 1786462-97-2
Category Impurity
Parent API
Formula -
Mol. Wt.

Impurity Products at Clearsynth

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