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Categories / Impurity

Impurity Products

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

Showing 9649-9672 of 27565 products
All In Stock Custom Synthesis
4,4,5,5-tetramethyl-2-(9-phenylphenanthro[4,5-bcd]furan-8-yl)-1,3,2-dioxaborolane chemical structure
Custom Synthesis

4,4,5,5-tetramethyl-2-(9-phenylphenanthro[4,5-bcd]furan-8-yl)-1,3,2-dioxaborolane

CAT No. CS-O-60955
CAS No.
Category Impurity
Parent API .
Formula C26H23BO3
Mol. Wt. 394.27
4,4'-[[(1-methylethyl)imino]bis[(2-hydroxy-3,1-propanediyl)oxy]]bis-benzeneacetamide-d7 (Atenolol Impurity F) chemical structure
Custom Synthesis

4,4'-[[(1-methylethyl)imino]bis[(2-hydroxy-3,1-propanediyl)oxy]]bis-benzeneacetamide-d7 (Atenolol Impurity F)

CAT No. CS-T-100039
CAS No.
Category Impurity
Parent API
Formula C25H28D7N3O6
Mol. Wt. 480.61
4,4′-[(2S)-2-Pyrrolidinyl[(trimethylsilyl)oxy]methylene]bis[N,N-dimethylbenzenemethanamine] chemical structure
Custom Synthesis

4,4′-[(2S)-2-Pyrrolidinyl[(trimethylsilyl)oxy]methylene]bis[N,N-dimethylbenzenemethanamine]

CAT No. CS-O-51910
CAS No. 1203648-36-5
Category Impurity
Parent API -
Formula C26H41N3OSi
Mol. Wt. 439.71
4,4′-Di-tert-butyl-2,2′-bipyridine-6-N-cyanocarboxamidine chemical structure
Custom Synthesis

4,4′-Di-tert-butyl-2,2′-bipyridine-6-N-cyanocarboxamidine

CAT No. CS-O-43384
CAS No. 2755915-54-7
Category Impurity
Parent API -
Formula C20H25N5
Mol. Wt. 335.45
4,4-Bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta-[2,1-b;3,4-b']dithiophene chemical structure
Custom Synthesis

4,4-Bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta-[2,1-b;3,4-b']dithiophene

CAT No. CS-O-39395
CAS No. 920504-00-3
Category Impurity
Parent API
Formula C31H54S2Sn2
Mol. Wt. 728.31
4,4'-Bis(9-(acryloyloxy)nonyloxy)azobenzene chemical structure
Custom Synthesis

4,4'-Bis(9-(acryloyloxy)nonyloxy)azobenzene

CAT No. CS-O-51547
CAS No. 864711-37-5
Category Impurity
Parent API -
Formula C36H50N2O6
Mol. Wt. 606.79
4,4-bis(propan-2-yl) 1-(4-methylbenzenesulfonyl)piperidine-4,4-dicarboxylate chemical structure
Custom Synthesis

4,4-bis(propan-2-yl) 1-(4-methylbenzenesulfonyl)piperidine-4,4-dicarboxylate

CAT No. CS-EM-03542
CAS No. 1523618-00-9
Category Impurity
Parent API
Formula -
Mol. Wt.
4,4'-Bis[6-(acryloyloxy)hexyloxy]azobenzene chemical structure
Custom Synthesis

4,4'-Bis[6-(acryloyloxy)hexyloxy]azobenzene

CAT No. CS-O-37439
CAS No. 1011714-83-2
Category Impurity
Parent API
Formula C30H38N2O6
Mol. Wt. 522.63
4,4'-Bisphenol A-bis-N-methylphthalimide chemical structure
Custom Synthesis

4,4'-Bisphenol A-bis-N-methylphthalimide

CAT No. CS-O-44622
CAS No. 54395-52-7
Category Impurity
Parent API Bisphenol
Formula C33H26N2O6
Mol. Wt. 546.57
4,4-dichlorobutanoic acid chemical structure
Custom Synthesis

4,4-dichlorobutanoic acid

CAT No. CS-O-40385
CAS No. 151675-58-0
Category Impurity
Parent API chlorobutanoic
Formula C4H6Cl2O2
Mol. Wt. 157
4,4-Difluorobenzophenone chemical structure
Custom Synthesis

4,4-Difluorobenzophenone

CAT No. CS-CG-00153
CAS No. 345-92-6
Category Impurity
Parent API
Formula -
Mol. Wt.
4,4-Dimethyl Retinoic Acid chemical structure
Custom Synthesis

4,4-Dimethyl Retinoic Acid

CAT No. CS-T-53693
CAS No. 104182-09-4
Category Impurity
Parent API
Formula C22H32O2
Mol. Wt. 328.49
4,4'-Dinitro Azobenzene chemical structure
Custom Synthesis

4,4'-Dinitro Azobenzene

CAT No. CS-O-62080
CAS No. 3646-57-9
Category Impurity
Parent API Azobenzene
Formula C12H8N4O4
Mol. Wt. 272.22
4,4'-Methylenebis(1-hydroxy-2-naphthoic acid) chemical structure
Custom Synthesis

4,4'-Methylenebis(1-hydroxy-2-naphthoic acid)

CAT No. CS-B-00384
CAS No. 1175-41-3
Category Impurity
Parent API
Formula C23H16O6
Mol. Wt. 388.37
4,4-Pentamethylenepiperidine chemical structure
Custom Synthesis

4,4-Pentamethylenepiperidine

CAT No. CS-T-38956
CAS No. 1125-01-5
Category Impurity
Parent API
Formula -
Mol. Wt.
4,5,6,7-tetrahydrothieno[3,2-c]pyridine chemical structure
Custom Synthesis

4,5,6,7-tetrahydrothieno[3,2-c]pyridine

CAT No. CS-DE-01594
CAS No. 54903-50-3
Category Impurity
Parent API
Formula C7H9NS
Mol. Wt. 139.22
4,5a-Dihydronorethisterone chemical structure
Custom Synthesis

4,5a-Dihydronorethisterone

CAT No. CS-T-53110
CAS No. 52-79-9
Category Impurity
Parent API Norethindrone
Formula C20H28O2
Mol. Wt. 300.4
4,5-Bis(chloromethyl)-1,3-dioxolan-2-one chemical structure
Custom Synthesis

4,5-Bis(chloromethyl)-1,3-dioxolan-2-one

CAT No. CS-O-15194
CAS No. 1487-64-5
Category Impurity
Parent API Olmesartan
Formula C5H6Cl2O3
Mol. Wt. 185.00
4,5-Dehydro Capsaicin chemical structure
Custom Synthesis

4,5-Dehydro Capsaicin

CAT No. CS-O-39607
CAS No. 2305061-51-0
Category Impurity
Parent API Capsaicin
Formula C18H25NO3
Mol. Wt. 303.40
4,5-Dehydro Pregabalin Formate chemical structure
Custom Synthesis

4,5-Dehydro Pregabalin Formate

CAT No. CS-O-58092
CAS No.
Category Impurity
Parent API Pregabalin
Formula C9H17NO4
Mol. Wt. 203.24
4,5-Diamino-5-oxopentanoic acid chemical structure
Custom Synthesis

4,5-Diamino-5-oxopentanoic acid

CAT No. CS-EO-01359
CAS No. 328-48-3
Category Impurity
Parent API Pomalidomide
Formula C5H10N2O3
Mol. Wt. 146.1
4,5-Dichloro-4,5-dimethyl-1,3-dioxolan-2-one chemical structure
Custom Synthesis

4,5-Dichloro-4,5-dimethyl-1,3-dioxolan-2-one

CAT No. CS-ZG-88187
CAS No. 129482-56-0
Category Impurity
Parent API
Formula -
Mol. Wt.
4,5-difluoro-3-(phenylthio)isobenzofuran-1(3H)-one chemical structure
Custom Synthesis

4,5-difluoro-3-(phenylthio)isobenzofuran-1(3H)-one

CAT No. CS-O-37786
CAS No. 2136287-64-2
Category Impurity
Parent API Baloxavir Marboxil
Formula C14H8F2O2S
Mol. Wt. 278.27
4,5-difluoro-3-hydroxyisobenzofuran-1(3H)-one chemical structure
Custom Synthesis

4,5-difluoro-3-hydroxyisobenzofuran-1(3H)-one

CAT No. CS-O-37852
CAS No. 2136287-63-1
Category Impurity
Parent API Baloxavir Marboxil
Formula C8H4F2O3
Mol. Wt. 186.11

Impurity Products at Clearsynth

Browse available Impurity products from Clearsynth. These compounds support analytical research, quality control and pharmaceutical development.

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