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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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COA + SDSwith every lot

Reference Standard

Sitagliptin N-Acetyl Impurity chemical structure

Sitagliptin N-Acetyl Impurity

CAS: 1379666-94-0
Formula: C₁₈H₁₇F₆N₅O₂
MW: 449.3 g/mol

In stock

Reference Standard

Sitagliptin Nitrosamine Impurity chemical structure

Sitagliptin Nitrosamine Impurity

CAS: 2892260-32-9
Formula: C₆H₆F₃N₅O
MW: 221.14 g/mol

In stock

Reference Standard

Sitagliptin Pyrazinone Hydrochloride Impurity

Sitagliptin Pyrazinone Hydrochloride Impurity

Formula: C₆H₅F₃N₄O.ClH
MW: 242.59 g/mol

In stock

Reference Standard

Sitagliptin Pyrazinone Impurity chemical structure

Sitagliptin Pyrazinone Impurity

CAS: 877402-45-4
Formula: C₆H₅F₃N₄O
MW: 206.13 g/mol

VQ-005939

Reference Standard

Sitagliptin Triazole Impurity chemical structure

Sitagliptin Triazole Impurity

CAS: 486460-21-3
Formula: C₆H₇F₃N₄
MW: 192.14 g/mol

VQ-005940

Reference Standard

Sitagliptin-N-sulfate chemical structure

Sitagliptin-N-sulfate

CAS: 940002-57-3
Formula: C₁₆H₁₅F₆N₅O₄S
MW: 487.4 g/mol

VQ-033888

Reference Standard

Sn-Glycero-3-phosphocholine chemical structure

Sn-Glycero-3-phosphocholine

CAS: 28319-77-9
Formula: C₈H₂₀NO₆P
MW: 257.22 g/mol

VQ-027103

Reference Standard

Sobrerol Impurity 1

Sobrerol Impurity 1

CAS: 6252-34-2
Formula: C₁₀H₁₈O₂
MW: 170.3 g/mol

VQ-044558

Reference Standard

Sodium chemical structure

CAS: 2064219-24-3
Formula: C₇H₁₀N₃NaO₆S
MW: 287.23 g/mol

VQ-024452

Reference Standard

Sodium chemical structure

CAS: 38899-05-7
Formula: C₁₂H₂₈Cl₂N₂Na₂O₁₄S
MW: 573.3 g/mol

VQ-026007

Reference Standard

Sodium (Z)-3-ethoxy-2-fluoro-3-oxoprop-1-en-1-olate chemical structure

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

CAS: 10118-17-9
Formula: C₅H₆FNaO₃
MW: 156.09 g/mol

VQ-040086

Reference Standard

Sodium 1,3-dimethyl-2,6-dioxo-2,3,6,9-tetrahydro-1H-purine-8-sulfonate

Sodium 1,3-dimethyl-2,6-dioxo-2,3,6,9-tetrahydro-1H-purine-8-sulfonate

CAS: 108084-94-2
Formula: C₇H₇N₄NaO₅S
MW: 282.21 g/mol

VQ-030307

Reference Standard

Sodium 1,5-dimethyl-4-(4-methylbenzoyl)-1H-pyrrole-2-carboxylate

Sodium 1,5-dimethyl-4-(4-methylbenzoyl)-1H-pyrrole-2-carboxylate

CAS: 2512186-48-8
Formula: C₁₅H₁₄NNaO₃
MW: 279.27 g/mol

VQ-034320

Reference Standard

Sodium 4-((2-ethylhexyl)oxy)-1-methoxy-1,4-dioxobutane-2-sulfonate chemical structure

Sodium 4-((2-ethylhexyl)oxy)-1-methoxy-1,4-dioxobutane-2-sulfonate

CAS: 83930-08-9
Formula: C₁₃H₂₃NaO₇S
MW: 346.37 g/mol

VQ-044767

Reference Standard

Sodium 4-((2-ethylhexyl)oxy)-4-oxo-2-sulfonatobutanoate chemical structure

Sodium 4-((2-ethylhexyl)oxy)-4-oxo-2-sulfonatobutanoate

CAS: 96954-01-7
Formula: C₁₂H₂₀Na₂O₇S
MW: 354.33 g/mol

VQ-022416

Reference Standard

Sodium 4-(1,1-dimethyl-2-oxo-1,2-dihydro-3H-benzo[e]indol-3-yl)butane-1-sulfonate chemical structure

Sodium 4-(1,1-dimethyl-2-oxo-1,2-dihydro-3H-benzo[e]indol-3-yl)butane-1-sulfonate

CAS: 2776202-53-8
Formula: C₁₈H₂₁NO₄S
MW: 347.4 g/mol

VQ-031203

Reference Standard

Sodium 4-(2-Ethylhexyl) 2-Sulfobutanedioate Ethyl Ester chemical structure

Sodium 4-(2-Ethylhexyl) 2-Sulfobutanedioate Ethyl Ester

CAS: 2575516-71-9
Formula: C₁₄H₂₅NaO₇S
MW: 360.4 g/mol

VQ-022418

Reference Standard

Sodium 4-(3-(3-fluorophenyl)-5,5-dimethyl-4-oxo-4,5-dihydrofuran-2-yl)benzenesulfinate chemical structure

Sodium 4-(3-(3-fluorophenyl)-5,5-dimethyl-4-oxo-4,5-dihydrofuran-2-yl)benzenesulfinate

CAS: 1778703-67-5
Formula: C₁₈H₁₄FNaO₄S
MW: 368.4 g/mol

VQ-027547

Reference Standard

Sodium 4-Dodecylbenzenesulphonate chemical structure

Sodium 4-Dodecylbenzenesulphonate

CAS: 2211-98-5
Formula: C₁₈H₂₉NaO₃S
MW: 348.5 g/mol

VQ-039738

Reference Standard

Sodium 4-ethoxy-1-((2-ethylhexyl)oxy)-1,4-dioxobutane-2-sulfonate chemical structure

Sodium 4-ethoxy-1-((2-ethylhexyl)oxy)-1,4-dioxobutane-2-sulfonate

CAS: 2575516-73-1
Formula: C₁₄H₂₅NaO₇S
MW: 360.4 g/mol

VQ-025356

Reference Standard

Sodium 4,4'-(5-oxo-4-(2-(4-sulfonatophenyl)hydrazineylidene)-4,5-dihydro-1H-pyrazole-1,3-diyl)dibenzenesulfonate chemical structure

Sodium 4,4'-(5-oxo-4-(2-(4-sulfonatophenyl)hydrazineylidene)-4,5-dihydro-1H-pyrazole-1,3-diyl)dibenzenesulfonate

CAS: 104236-31-9
Formula: C₂₁H₁₃N₄Na₃O₁₀S₃
MW: 646.5 g/mol

VQ-034048

Reference Standard

Sodium 5-oxo-1-phenyl-4-((4-sulfonatophenyl)diazenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate chemical structure

Sodium 5-oxo-1-phenyl-4-((4-sulfonatophenyl)diazenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate

CAS: 104236-33-1
Formula: C₁₆H₁₀N₄Na₂O₆S
MW: 432.3 g/mol

VQ-034049

Reference Standard

Sodium 5-oxo-4-(phenyldiazenyl)-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate chemical structure

Sodium 5-oxo-4-(phenyldiazenyl)-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate

CAS: 1934-22-1
Formula: C₁₆H₁₀N₄Na₂O₆S
MW: 432.3 g/mol

VQ-042371

Reference Standard

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

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

CAS: 198471-07-7
Formula: C₁₈H₁₆N₂NaO₄S
MW: 379.4 g/mol

VQ-041339

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