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Categories / Impurity

Impurity Products

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

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Sitagliptin Phosphate EP Impurity B chemical structure
Custom Synthesis

Sitagliptin Phosphate EP Impurity B

CAT No. CS-TB-14828
CAS No. 1345822-87-8
Category Impurity
Parent API Sitagliptin
Formula C16H19F5N5O5P
Mol. Wt. 487.32
Sitagliptin Propan-2-ylideneamino Impurity chemical structure
Custom Synthesis

Sitagliptin Propan-2-ylideneamino Impurity

CAT No. CS-O-60360
CAS No.
Category Impurity
Parent API Sitagliptin
Formula C19H19F6N5O
Mol. Wt. 447.38
Sitagliptin Pyrazine Impurity chemical structure
Custom Synthesis

Sitagliptin Pyrazine Impurity

CAT No. CS-O-41913
CAS No. 486460-21-3 (Freebase)
Category Impurity
Parent API Sitagliptin
Formula C6H10F3N4O4P
Mol. Wt. 290.14
Sitagliptin tartrate hemihydrate chemical structure
Custom Synthesis

Sitagliptin tartrate hemihydrate

CAT No. CS-O-34792
CAS No. -
Category Impurity
Parent API Sitagliptin
Formula C16H15F6N5O : C4H6O6 : 1/2(H2O)
Mol. Wt. 407.3 : 150.1 : 1/2(18.0)
S-Malate dimer chemical structure
Custom Synthesis

S-Malate dimer

CAT No. CS-O-57400
CAS No. 276871-10-4
Category Impurity
Parent API -
Formula C8H10O9
Mol. Wt. 250.16
S-Meglimin TARTRATE chemical structure
Custom Synthesis

S-Meglimin TARTRATE

CAT No. CS-O-45128
CAS No. -
Category Impurity
Parent API Meglimin
Formula C10H19N5O6
Mol. Wt. 305.29
S-Methyl Ergothioneine chemical structure
Custom Synthesis

S-Methyl Ergothioneine

CAT No. CS-T-80240
CAS No. 176982-20-0
Category Impurity
Parent API
Formula -
Mol. Wt.
S-Methyl Tiopronin chemical structure
Custom Synthesis

S-Methyl Tiopronin

CAT No. CS-T-35182
CAS No. 87254-91-9
Category Impurity
Parent API Tiopronin
Formula C6H11NO3S
Mol. Wt. 177.2
S-Methyldihydroziprasidone chemical structure
Custom Synthesis

S-Methyldihydroziprasidone

CAT No. CS-T-33631
CAS No. 194280-91-6
Category Impurity
Parent API Ziprasidone
Formula C22H25ClN4OS
Mol. Wt. 429
S-Methyl-L-Cysteine-S-oxide chemical structure
Custom Synthesis

S-Methyl-L-Cysteine-S-oxide

CAT No. CS-P-07570
CAS No. 6853-87-8
Category Impurity
Parent API
Formula -
Mol. Wt.
S-Methylthiorphan chemical structure
Custom Synthesis

S-Methylthiorphan

CAT No. CS-O-48755
CAS No. 1005348-29-7
Category Impurity
Parent API Thiorphan
Formula C13H17NO3S
Mol. Wt. 267.34
S-Methylthiorphan S-oxide chemical structure
Custom Synthesis

S-Methylthiorphan S-oxide

CAT No. CS-O-48756
CAS No. -
Category Impurity
Parent API thiorphan
Formula C13H17NO4S
Mol. Wt. 283.34
SN-38 Carboxylate Disodium Salt chemical structure
Custom Synthesis

SN-38 Carboxylate Disodium Salt

CAT No. CS-T-94184
CAS No. -
Category Impurity
Parent API Irinotecan
Formula C22H20N2O6 : 2(Na)
Mol. Wt. 408.4 : 2(23.0)
sodium ((3R,6S)-6-carbamoyl-1-(ethoxycarbonyl)piperidin-3-yl)amino sulfate chemical structure
Custom Synthesis

sodium ((3R,6S)-6-carbamoyl-1-(ethoxycarbonyl)piperidin-3-yl)amino sulfate

CAT No. CS-O-35055
CAS No. -
Category Impurity
Parent API
Formula C9H16N3NaO7S
Mol. Wt. 333.29
sodium ((3R,6S)-6-carbamoyl-1-(isopropoxycarbonyl)piperidin-3-yl)amino sulfate chemical structure
Custom Synthesis

sodium ((3R,6S)-6-carbamoyl-1-(isopropoxycarbonyl)piperidin-3-yl)amino sulfate

CAT No. CS-O-35056
CAS No. -
Category Impurity
Parent API Avibactam
Formula C10H18N3NaO7S
Mol. Wt. 347.32
sodium ((3R,6S)-6-carbamoyl-1-sulfonatopiperidin-3-yl)amino sulfate chemical structure
Custom Synthesis

sodium ((3R,6S)-6-carbamoyl-1-sulfonatopiperidin-3-yl)amino sulfate

CAT No. CS-O-49649
CAS No. -
Category Impurity
Parent API Avibactam
Formula C6H11N3Na2O8S2
Mol. Wt. 363.28
sodium (1S,2R)-2-(hydroxymethyl)-1-phenylcyclopropane-1-carboxylate chemical structure
Custom Synthesis

sodium (1S,2R)-2-(hydroxymethyl)-1-phenylcyclopropane-1-carboxylate

CAT No. CS-O-58012
CAS No.
Category Impurity
Parent API Milnacipran
Formula C11H11NaO3
Mol. Wt. 214.20
sodium (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate chemical structure
Custom Synthesis

sodium (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate

CAT No. CS-O-35939
CAS No. 2247346-41-2 (free base)
Category Impurity
Parent API Atorvastatin
Formula C26H29FNNaO4
Mol. Wt. 461.51
sodium (R)-4-((2-(3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-2,3-dihydropyrimidin-1(6 chemical structure
Custom Synthesis

sodium (R)-4-((2-(3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-2,3-dihydropyrimidin-1(6

CAT No. CS-O-36238
CAS No. -
Category Impurity
Parent API Elagolix
Formula C25H24F4N3NaO4
Mol. Wt. 529.46
Sodium (R)-4-((2-(5-(2-fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-d chemical structure
Custom Synthesis

Sodium (R)-4-((2-(5-(2-fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-d

CAT No. CS-O-36240
CAS No. 2409132-62-1 (free base)
Category Impurity
Parent API Elagolix
Formula C32H29F5N3NaO6
Mol. Wt. 669.57
Sodium (R)-4-oxo-4,6,7,8-tetrahydropyrrolo[1,2-a]pyrimidine-6-carboxylate chemical structure
Custom Synthesis

Sodium (R)-4-oxo-4,6,7,8-tetrahydropyrrolo[1,2-a]pyrimidine-6-carboxylate

CAT No. CS-O-47822
CAS No. -
Category Impurity
Parent API -
Formula C8H7N2NaO3
Mol. Wt. 202.14
Sodium (Z)-1-Cyano-3-ethoxy-3-oxoprop-1-en-2-olate chemical structure
Custom Synthesis

Sodium (Z)-1-Cyano-3-ethoxy-3-oxoprop-1-en-2-olate

CAT No. CS-TA-21074
CAS No. 627076-29-3
Category Impurity
Parent API
Formula -
Mol. Wt.
sodium (Z)-3-ethoxy-2-fluoro-3-oxoprop-1-en-1-olate chemical structure
Custom Synthesis

sodium (Z)-3-ethoxy-2-fluoro-3-oxoprop-1-en-1-olate

CAT No. CS-O-54647
CAS No. 10118-17-9
Category Impurity
Parent API -
Formula C5H6FNaO3
Mol. Wt. 156.09
sodium (Z)-prop-1-en-1-ylphosphonate chemical structure
Custom Synthesis

sodium (Z)-prop-1-en-1-ylphosphonate

CAT No. CS-O-35612
CAS No. 25383-06-6 (Free base)
Category Impurity
Parent API Fosfomycin
Formula C3H5Na2O3P
Mol. Wt. 166.02

Impurity Products at Clearsynth

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