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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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Reference Standard

Orlistat Dihydropyranone Impurity chemical structure

Orlistat Dihydropyranone Impurity

CAS: 130676-64-1
Formula: C₂₂H₄₀O₂
MW: 336.6 g/mol

VQ-027034

Reference Standard

Orlistat Impurity 12

Orlistat Impurity 12

CAS: 130793-26-9
Formula: C₃₀H₅₃NO₃
MW: 475.8 g/mol

VQ-038787

Reference Standard

Orlistat L-Methionine chemical structure

Orlistat L-Methionine

CAS: 1356354-38-5
Formula: C₂₈H₅₁NO₅S
MW: 513.8 g/mol

VQ-032283

Reference Standard

Orlistat Open Ring (2S,3S,5S)-Isomer chemical structure

Orlistat Open Ring (2S,3S,5S)-Isomer

CAS: 130676-66-3
Formula: C₂₉H₅₅NO₆
MW: 513.7 g/mol

VQ-032278

Reference Standard

Orlistat open ring epimer chemical structure

Orlistat open ring epimer

CAS: 130793-28-1
Formula: C₂₉H₅₅NO₆
MW: 513.7 g/mol

VQ-027033

Reference Standard

Orlistat Tetradecyl Ester chemical structure

Orlistat Tetradecyl Ester

CAS: 686744-60-5
Formula: C₃₁H₅₇NO₅
MW: 523.8 g/mol

VQ-027038

Reference Standard

Ornidazole Isomer (Impurity) chemical structure

Ornidazole Isomer (Impurity)

CAS: 14419-11-5
Formula: C₇H₁₀ClN₃O₃
MW: 219.62 g/mol

VQ-027039

Reference Standard

Ornithine Methyl Ester chemical structure

Ornithine Methyl Ester

CAS: 6384-10-7
Formula: C₆H₁₄N₂O₂
MW: 146.19 g/mol

VQ-049342

Reference Standard

ortho-Fingolimod chemical structure

ortho-Fingolimod

CAS: 767262-51-1
Formula: C₁₉H₃₃NO₂
MW: 307.5 g/mol

VQ-025790

Reference Standard

Oseltamivir Amino Hydroxy Impurity chemical structure

Oseltamivir Amino Hydroxy Impurity

CAS: 312904-12-4
Formula: C₁₄H₂₅NO₄
MW: 271.35 g/mol

VQ-049352

Reference Standard

Oseltamivir Enantiomer chemical structure

Oseltamivir Enantiomer

CAS: 2413185-89-2
Formula: C₁₄H₂₂O₄
MW: 254.32 g/mol

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Reference Standard

Oseltamivir Impurity 22 chemical structure

Oseltamivir Impurity 22

CAS: 2081110-43-0
Formula: C₁₆H₂₈N₂O₄
MW: 312.4 g/mol

VQ-038804

Reference Standard

Oseltamivir Impurity 31 chemical structure

Oseltamivir Impurity 31

CAS: 2097777-49-4
Formula: C₁₄H₂₄O₅
MW: 272.34 g/mol

VQ-049354

Reference Standard

Oseltamivir Impurity 47 chemical structure

Oseltamivir Impurity 47

CAS: 2714884-77-0
Formula: C₁₄H₂₂O₄
MW: 254.32 g/mol

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Reference Standard

Oseltamivir Impurity 71

Oseltamivir Impurity 71

CAS: 2765792-94-5
Formula: C₂₃H₄₀N₂O₄
MW: 408.58 g/mol

VQ-049351

Reference Standard

Oseltamivir N-D-Glucitol chemical structure

Oseltamivir N-D-Glucitol

CAS: 2413185-91-6
Formula: C₂₂H₃₈N₂O₉
MW: 474.5 g/mol

VQ-045051

Reference Standard

Oseltamivir RRR Isomer chemical structure

Oseltamivir RRR Isomer

CAS: 2413185-96-1
Formula: C₂₆H₄₄N₂O₄
MW: 448.6 g/mol

VQ-032297

Reference Standard

Oseltamivir RSR Isomer

Oseltamivir RSR Isomer

CAS: 2413185-98-3
Formula: C₂₆H₄₄N₂O₄
MW: 448.64 g/mol

VQ-038799

Reference Standard

Oseltamivir RSS Isomer

CAS: 2413185-97-2
Formula: C₂₆H₄₄N₂O₄
MW: 448.6 g/mol

VQ-038798

Reference Standard

Osilodrostat Impurity 1 chemical structure

Osilodrostat Impurity 1

CAS: 928134-66-1
Formula: C₁₃H₁₀FN₃
MW: 227.24 g/mol

VQ-049356

Reference Standard

Osimertinib 2-Amide impurity chemical structure

Osimertinib 2-Amide impurity

CAS: 2213409-62-0
Formula: C₂₃H₂₀FN₅O₂
MW: 417.4 g/mol

VQ-032307

Reference Standard

Osimertinib Acetyl Impurity chemical structure

Osimertinib Acetyl Impurity

CAS: 2227103-37-7
Formula: C₂₇H₃₃N₇O₂
MW: 487.6 g/mol

VQ-032308

Reference Standard

Osimertinib Amine Impurity chemical structure

Osimertinib Amine Impurity

CAS: 1421372-66-8
Formula: C₂₅H₃₁N₇O
MW: 445.6 g/mol

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Reference Standard

Osimertinib Dimer Impurity 1 chemical structure

Osimertinib Dimer Impurity 1

CAS: 2919324-15-3
Formula: C₅₃H₆₄N₁₄O₃
MW: 945.2 g/mol

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