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Categories / Impurity

Impurity Products

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

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Pyrimethamine EP Impurity A chemical structure
Custom Synthesis

Pyrimethamine EP Impurity A

CAT No. CS-EO-01576
CAS No. -
Category Impurity
Parent API Pyrimethamine
Formula C11H10ClNO
Mol. Wt. 207.7
Pyrimethamine EP Impurity D chemical structure
Custom Synthesis

Pyrimethamine EP Impurity D

CAT No. CS-EO-01577
CAS No. 55474-41-4
Category Impurity
Parent API Pyrimethamine
Formula C13H14ClNO2
Mol. Wt. 251.7
Pyrimethamine Impurity A chemical structure
Custom Synthesis

Pyrimethamine Impurity A

CAT No. CS-T-50966
CAS No. 55474-40-3
Category Impurity
Parent API Pyrimethamine
Formula -
Mol. Wt.
Pyrimidine N-propyl impurity chemical structure
Custom Synthesis

Pyrimidine N-propyl impurity

CAT No. CS-O-16881
CAS No. -
Category Impurity
Parent API Macitentan
Formula C19H19Br2N5O2
Mol. Wt. 509.2
Pyroglutamate Salt of Impurity B chemical structure
Custom Synthesis

Pyroglutamate Salt of Impurity B

CAT No. CS-O-36500
CAS No. -
Category Impurity
Parent API
Formula C17H26N2O6S
Mol. Wt. 386.46
Pyronaridine 2-Chloro Impurity chemical structure
Custom Synthesis

Pyronaridine 2-Chloro Impurity

CAT No. CS-O-60549
CAS No. 1596337-68-6
Category Impurity
Parent API Pyronaridine
Formula C28H29Cl2N5O
Mol. Wt. 522.47
Pyronaridine Aldehyde impurity chemical structure
Custom Synthesis

Pyronaridine Aldehyde impurity

CAT No. CS-O-54825
CAS No.
Category Impurity
Parent API Pyronaridine
Formula C25H23ClN4O3
Mol. Wt. 462.93
Pyronaridine Impurity 1 chemical structure
Custom Synthesis

Pyronaridine Impurity 1

CAT No. CS-EO-03142
CAS No. 81079-95-0
Category Impurity
Parent API Pyronaridine
Formula C18H27N3O2
Mol. Wt. 317.4
Pyronaridine Impurity 3 chemical structure
Custom Synthesis

Pyronaridine Impurity 3

CAT No. CS-EO-03141
CAS No. 85236-51-7
Category Impurity
Parent API Pyronaridine
Formula C16H25N3O
Mol. Wt. 275.4
Pyronaridine Tetraphosphate chemical structure
Custom Synthesis

Pyronaridine Tetraphosphate

CAT No. CS-EK-02880
CAS No. 76748-86-2
Category Impurity
Parent API Pyronaridine
Formula C29H44ClN5O18P4
Mol. Wt. 910.03
Pyronil 45 chemical structure
Custom Synthesis

Pyronil 45

CAT No. CS-T-60989
CAS No. 26040-51-7
Category Impurity
Parent API
Formula -
Mol. Wt.
Pyrovalerone Hydrochloride chemical structure
Custom Synthesis

Pyrovalerone Hydrochloride

CAT No. CS-T-30482
CAS No. 1147-62-2
Category Impurity
Parent API
Formula -
Mol. Wt.
Pyroxasulfone acetonitrile impurity chemical structure
Custom Synthesis

Pyroxasulfone acetonitrile impurity

CAT No. CS-O-46104
CAS No. -
Category Impurity
Parent API Pyroxasulfone
Formula C13H13F5N4O4S
Mol. Wt. 416.32
Pyroxasulfone dimer chemical structure
Custom Synthesis

Pyroxasulfone dimer

CAT No. CS-O-46105
CAS No. 2642167-21-1
Category Impurity
Parent API Pyroxasulfone
Formula C23H27F7N6O8S2
Mol. Wt. 712.61
Pyroxasulfone isoxazole dimer chemical structure
Custom Synthesis

Pyroxasulfone isoxazole dimer

CAT No. CS-O-46103
CAS No. -
Category Impurity
Parent API Pyroxasulfone
Formula C17H21F5N4O5S
Mol. Wt. 488.43
Pyrrolidin-1-yl(4,5,6,7-tetrahydro-1H-Benzo[d]imidazol-5-yl)methanone hydrochloride chemical structure
Custom Synthesis

Pyrrolidin-1-yl(4,5,6,7-tetrahydro-1H-Benzo[d]imidazol-5-yl)methanone hydrochloride

CAT No. CS-ZG-86660
CAS No. 132036-42-1
Category Impurity
Parent API Ramosetron
Formula C12H17N3O : HCl
Mol. Wt. 219.3 : 36.5
Pyrrolopyrimidine Baricitinib chemical structure
Custom Synthesis

Pyrrolopyrimidine Baricitinib

CAT No. CS-O-38526
CAS No. 2910813-45-3
Category Impurity
Parent API Baricitinib
Formula C22H20N10O2S
Mol. Wt. 488.53
Pyrroloquinoline quinone chemical structure
Custom Synthesis

Pyrroloquinoline quinone

CAT No. CS-T-53014
CAS No. 72909-34-3
Category Impurity
Parent API Pyrroloquinoline Quinone
Formula C14H6N2O8
Mol. Wt. 330.21
Pyrroloquinoline quinone Impurity 1 chemical structure
Custom Synthesis

Pyrroloquinoline quinone Impurity 1

CAT No. CS-T-53342
CAS No. 80721-47-7
Category Impurity
Parent API Pyrroloquinoline quinone
Formula C18H14N2O8
Mol. Wt. 386.32
Quercetagetin-7-O-glucoside chemical structure
Custom Synthesis

Quercetagetin-7-O-glucoside

CAT No. CS-O-49710
CAS No. 548-75-4
Category Impurity
Parent API Quercetagetin
Formula C21H20O13
Mol. Wt. 480.38
Quercetin 3,4'-Diglucoside chemical structure
Custom Synthesis

Quercetin 3,4'-Diglucoside

CAT No. CS-T-61002
CAS No. 29125-80-2
Category Impurity
Parent API Quercetin
Formula C27H30O17
Mol. Wt. 626.52
Quercitrin chemical structure
Custom Synthesis

Quercitrin

CAT No. CS-T-61007
CAS No. 522-12-3
Category Impurity
Parent API
Formula -
Mol. Wt.
Quetiapine 7-Hydroxy Impurity HCl salt chemical structure
Custom Synthesis

Quetiapine 7-Hydroxy Impurity HCl salt

CAT No. CS-EO-03801
CAS No. 139079-39-3 (Freebase)
Category Impurity
Parent API Quetiapine
Formula C21H25N3O3S : HCl
Mol. Wt. 399.5 : 36.5
Quetiapine Carboxylate Impurity chemical structure
Custom Synthesis

Quetiapine Carboxylate Impurity

CAT No. CS-T-61011
CAS No. 1011758-00-1
Category Impurity
Parent API Quetiapine
Formula C22H25N3O4S
Mol. Wt. 427.5

Impurity Products at Clearsynth

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

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