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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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1,516in stock

COA + SDSwith every lot

Reference Standard

Gemifloxacin Dimer chemical structure

Gemifloxacin Dimer

CAS: 616827-84-0
Formula: C₃₀H₂₇F₂N₇O₇
MW: 635.6 g/mol

VQ-045060

Reference Standard

Gemifloxacin E-Isomer chemical structure

Gemifloxacin E-Isomer

CAS: 210353-54-1
Formula: C₁₈H₂₀FN₅O₄
MW: 389.4 g/mol

VQ-035343

Reference Standard

Gemigliptin Tartrate Enantiomer chemical structure

Gemigliptin Tartrate Enantiomer

CAS: 2589693-22-9
Formula: C₁₈H₁₉F₈N₅O₂
MW: 489.4 g/mol

VQ-037506

Reference Standard

Geniposide chemical structure

CAS: 24512-63-8
Formula: C₁₇H₂₄O₁₀
MW: 388.4 g/mol

VQ-040362

Reference Standard

Genotoxic DiEthanol Impurity 3

Genotoxic DiEthanol Impurity 3

Formula: C₁₂H₁₅N₃O₄.BrH
MW: 346.18 g/mol

VQ-005030

Reference Standard

Genotoxic Ethanol Impurity 1 chemical structure

Genotoxic Ethanol Impurity 1

CAS: 1839513-98-2
Formula: C₁₃H₁₇N₃O₄
MW: 279.29 g/mol

VQ-005031

Reference Standard

Gentamicin B chemical structure

CAS: 36889-15-3
Formula: C₁₉H₃₈N₄O₁₀
MW: 482.5 g/mol

VQ-037509

Reference Standard

Gentamicin C1 Pentaacetate Salt chemical structure

Gentamicin C1 Pentaacetate Salt

CAS: 25876-10-2
Formula: C₂₁H₄₃N₅O₇
MW: 477.6 g/mol

VQ-025979

Reference Standard

Gentamicin C2 chemical structure

CAS: 25876-11-3
Formula: C₂₀H₄₁N₅O₇
MW: 463.6 g/mol

VQ-025982

Reference Standard

Gentamicin C2a chemical structure

CAS: 59751-72-3
Formula: C₂₀H₄₁N₅O₇
MW: 463.6 g/mol

VQ-025981

Reference Standard

Gentamicin C2b chemical structure

CAS: 52093-21-7
Formula: C₂₀H₄₁N₅O₇
MW: 463.6 g/mol

VQ-030979

Reference Standard

Gentamycin C1a chemical structure

CAS: 26098-04-4
Formula: C₁₉H₃₉N₅O₇
MW: 449.5 g/mol

VQ-025980

Reference Standard

Gentiopicrin chemical structure

CAS: 20831-76-9
Formula: C₁₆H₂₀O₉
MW: 356.32 g/mol

VQ-037510

Reference Standard

Gepirone Bromobutyl Impurity chemical structure

Gepirone Bromobutyl Impurity

CAS: 84951-42-8
Formula: C₁₁H₁₈BrNO₂
MW: 276.17 g/mol

VQ-044916

Reference Standard

Gepotidacin S-enantiomer chemical structure

Gepotidacin S-enantiomer

CAS: 2319789-82-5
Formula: C₂₄H₂₈N₆O₃
MW: 448.5 g/mol

VQ-048524

Reference Standard

Gestodene Impurity 1 chemical structure

Gestodene Impurity 1

CAS: 104933-97-3
Formula: C₂₁H₂₈O₄
MW: 344.4 g/mol

VQ-037512

Reference Standard

Gibberellin A9 chemical structure

CAS: 427-77-0
Formula: C₁₉H₂₄O₄
MW: 316.4 g/mol

VQ-048527

Reference Standard

Gilteritinib Amino Piperidine Impurity chemical structure

Gilteritinib Amino Piperidine Impurity

CAS: 1254058-34-8
Formula: C₁₇H₂₈N₄O
MW: 304.4 g/mol

In stock

Reference Standard

Gilteritinib Dimer Impurity

Gilteritinib Dimer Impurity

Formula: C₅₂H₇₅N₁₅O₅
MW: 990.25 g/mol

VQ-005033

Reference Standard

Gilteritinib Nitrile Impurity chemical structure

Gilteritinib Nitrile Impurity

CAS: 2043019-99-2
Formula: C₂₉H₄₂N₈O₂
MW: 534.7 g/mol

In stock

Reference Standard

Ginkgolide A chemical structure

CAS: 15291-75-5
Formula: C₂₀H₂₄O₉
MW: 408.4 g/mol

VQ-027213

Reference Standard

Ginkgolide B chemical structure

CAS: 15291-77-7
Formula: C₂₀H₂₄O₁₀
MW: 424.4 g/mol

VQ-027214

Reference Standard

Ginkgolide C chemical structure

CAS: 15291-76-6
Formula: C₂₀H₂₄O₁₁
MW: 440.4 g/mol

VQ-027215

Reference Standard

Ginkgolide J chemical structure

CAS: 107438-79-9
Formula: C₂₀H₂₄O₁₀
MW: 424.4 g/mol

VQ-040569

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