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Categories / Impurity

Impurity Products

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

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sodium 2-((4-(diethylamino)phenyl)(4-oxocyclohexa-2,5-dien-1-ylidene)methyl)benzene-1,4-disulfonate chemical structure
Custom Synthesis

sodium 2-((4-(diethylamino)phenyl)(4-oxocyclohexa-2,5-dien-1-ylidene)methyl)benzene-1,4-disulfonate

CAT No. CS-O-40853
CAS No. -
Category Impurity
Parent API Isosulfan Blue
Formula C23H21NNa2O7S2
Mol. Wt. 533.52
sodium 2,3-dihydroxypropyl ((R)-2-hydroxy-3-(stearoyloxy)propyl) phosphate chemical structure
Custom Synthesis

sodium 2,3-dihydroxypropyl ((R)-2-hydroxy-3-(stearoyloxy)propyl) phosphate

CAT No. CS-O-39257
CAS No. 326495-23-2
Category Impurity
Parent API Miltefosine
Formula C24H49O9P : Na
Mol. Wt. 512.6 : 23.0
Sodium 4-methoxy-3-(methoxycarbonyl)-1-methylpiperidin-4-olate chemical structure
Custom Synthesis

Sodium 4-methoxy-3-(methoxycarbonyl)-1-methylpiperidin-4-olate

CAT No. CS-O-61318
CAS No.
Category Impurity
Parent API Zavegepant
Formula C9H16NNaO4
Mol. Wt. 225.22
Sodium 5-((1S,2S)-2-((2R,6S,9S,11R,12R,14aS,15S,16S,20S,23S,25aS)-20-((R)-3-amino-1-hydroxy-3-oxopropyl)-2,11,12,15-tetrahydroxy-6-(hydroxymethyl)-16-methyl-5,8,14,19,22,25-hexaoxo-9-(4-(5-(4-(pentyl chemical structure
Custom Synthesis

Sodium 5-((1S,2S)-2-((2R,6S,9S,11R,12R,14aS,15S,16S,20S,23S,25aS)-20-((R)-3-amino-1-hydroxy-3-oxopropyl)-2,11,12,15-tetrahydroxy-6-(hydroxymethyl)-16-methyl-5,8,14,19,22,25-hexaoxo-9-(4-(5-(4-(pentyl

CAT No. CS-O-39622
CAS No. -
Category Impurity
Parent API Micafungin Sodium
Formula C55H68N9NaO23S
Mol. Wt. 1278.24
Sodium 5-((2R,3aR,4R,5R,6aS)-4-((S,E)-3-hydroxyoct-1-en-1-yl)hexahydro-2H-2,5-epoxycyclopenta[b]furan-2-yl)pentanoate chemical structure
Custom Synthesis

Sodium 5-((2R,3aR,4R,5R,6aS)-4-((S,E)-3-hydroxyoct-1-en-1-yl)hexahydro-2H-2,5-epoxycyclopenta[b]furan-2-yl)pentanoate

CAT No. CS-O-63070
CAS No. -
Category Impurity
Parent API Prostaglandin
Formula C20H31NaO5
Mol. Wt. 374.45
sodium 5-((3aS,4R,5R,6aS)-5-hydroxy-4-((S,E)-3-hydroxyoct-1-en-1-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[b]furan-2-yl)pentanoate chemical structure
Custom Synthesis

sodium 5-((3aS,4R,5R,6aS)-5-hydroxy-4-((S,E)-3-hydroxyoct-1-en-1-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[b]furan-2-yl)pentanoate

CAT No. CS-O-38742
CAS No. -
Category Impurity
Parent API
Formula C20H31NaO5
Mol. Wt. 374.45
Sodium 5,5-diethyl-4,6-dioxo-1,4,5,6-tetrahydropyrimidin-2-olate chemical structure
Custom Synthesis

Sodium 5,5-diethyl-4,6-dioxo-1,4,5,6-tetrahydropyrimidin-2-olate

CAT No. CS-MM-12364
CAS No. 144-02-5
Category Impurity
Parent API
Formula C8H11N2NaO3
Mol. Wt. 206.18
Sodium 6 Hydroxy Equilenin Sulfate chemical structure
Custom Synthesis

Sodium 6 Hydroxy Equilenin Sulfate

CAT No. CS-O-65794
CAS No.
Category Impurity
Parent API Equilin
Formula C18H17NaO6S
Mol. Wt. 384.38 g/mol
Sodium 6- Keto Estrone sulfate chemical structure
Custom Synthesis

Sodium 6- Keto Estrone sulfate

CAT No. CS-O-65795
CAS No.
Category Impurity
Parent API Estrone
Formula C18H19NaO6S
Mol. Wt. 386.39 g/mol
Sodium acetyl(4-(5-methyl-3-phenylisoxazol-4-yl)phenylsulfonyl)amide chemical structure
Custom Synthesis

Sodium acetyl(4-(5-methyl-3-phenylisoxazol-4-yl)phenylsulfonyl)amide

CAT No. CS-O-36003
CAS No. 198471-07-7
Category Impurity
Parent API Parecoxib
Formula C18H15N2NaO4S
Mol. Wt. 378.38
Sodium Cromoglicate Impurity 1 chemical structure
Custom Synthesis

Sodium Cromoglicate Impurity 1

CAT No. CS-O-59911
CAS No. 55392-81-9 (free base)
Category Impurity
Parent API Cromoglicate
Formula C23H20Na2O13
Mol. Wt. 550.38
Sodium Cromoglicate Impurity 3 chemical structure
Custom Synthesis

Sodium Cromoglicate Impurity 3

CAT No. CS-O-57695
CAS No.
Category Impurity
Parent API Sodium Cromoglicate
Formula C21H20O12
Mol. Wt. 464.38
Sodium Deoxycholate chemical structure
Custom Synthesis

Sodium Deoxycholate

CAT No. CS-T-61346
CAS No. 302-95-4
Category Impurity
Parent API DeoxycholicAcid
Formula C24H39O4 : Na
Mol. Wt. 391.6 : 23.0
Sodium Fusidate EP Impurity B (Mixture of Diastereomers) chemical structure
Custom Synthesis

Sodium Fusidate EP Impurity B (Mixture of Diastereomers)

CAT No. CS-P-08977
CAS No. -
Category Impurity
Parent API FUSIDIC ACID
Formula C31H48O7
Mol. Wt. 532.72
Sodium Inosine 5'-Phosphate chemical structure
Custom Synthesis

Sodium Inosine 5'-Phosphate

CAT No. CS-T-61353
CAS No. 4691-65-0
Category Impurity
Parent API
Formula -
Mol. Wt.
Sodium Picosulfate - Impurity C chemical structure
Custom Synthesis

Sodium Picosulfate - Impurity C

CAT No. CS-O-37488
CAS No. -
Category Impurity
Parent API
Formula C18H13NNa2O8S2
Mol. Wt. 481.41
Sodium Selenite Pentahydrate chemical structure
Custom Synthesis

Sodium Selenite Pentahydrate

CAT No. CS-T-61366
CAS No. 26970-82-1
Category Impurity
Parent API
Formula -
Mol. Wt.
Sodium Tungstate chemical structure
Custom Synthesis

Sodium Tungstate

CAT No. CS-DL-00994
CAS No. 13472-45-2
Category Impurity
Parent API
Formula -
Mol. Wt.
Sodium;(4S)-2-[[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-carboxymethyl]-5,5-dimethyl-1,3-thiaz chemical structure
Custom Synthesis

Sodium;(4S)-2-[[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-carboxymethyl]-5,5-dimethyl-1,3-thiaz

CAT No. CS-ZG-98141
CAS No. 68728-47-2
Category Impurity
Parent API Amoxicillin Trihydrate
Formula C16H20N3NaO6S
Mol. Wt. 405.4 mol/g
Sofosbuvir 3-(prop-1-en-2-yloxy)tetrahydrofuran Impurity-1 chemical structure
Custom Synthesis

Sofosbuvir 3-(prop-1-en-2-yloxy)tetrahydrofuran Impurity-1

CAT No. CS-O-60767
CAS No.
Category Impurity
Parent API Sofosbuvir
Formula C25H31FN3O10P
Mol. Wt. 583.50
Sofosbuvir 3’,5’-Bis-(S)-phosphate chemical structure
Custom Synthesis

Sofosbuvir 3’,5’-Bis-(S)-phosphate

CAT No. CS-T-84999
CAS No. 1337482-17-3
Category Impurity
Parent API Sofosbuvir
Formula C34H45FN4O13P2
Mol. Wt. 798.69
Sofosbuvir 3’Analogue chemical structure
Custom Synthesis

Sofosbuvir 3’Analogue

CAT No. CS-O-52904
CAS No. 1256490-28-4
Category Impurity
Parent API -
Formula C22H29FN3O9P
Mol. Wt. 529.45
Sofosbuvir Acid chemical structure
Custom Synthesis

Sofosbuvir Acid

CAT No. CS-EO-03173
CAS No. 1859162-79-0
Category Impurity
Parent API Sofosbuvir
Formula C19H23FN3O9P
Mol. Wt. 487.4
Sofosbuvir Benzoyl Cytidine chemical structure
Custom Synthesis

Sofosbuvir Benzoyl Cytidine

CAT No. CS-O-32142
CAS No. 817204-32-3
Category Impurity
Parent API Cytidine
Formula -
Mol. Wt.

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