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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

Olaparib Isopropyl Impurity chemical structure

Olaparib Isopropyl Impurity

Formula: C₂₄H₂₅FN₄O₃
MW: 436.5 g/mol

In stock

Reference Standard

Olaparib open ring Impurity

Olaparib open ring Impurity

CAS: 2905342-00-7
Formula: C₂₄H₂₅FN₄O₄
MW: 452.5 g/mol

VQ-038732

Reference Standard

Olaparib Z Isomer Impurity-1 chemical structure

Olaparib Z Isomer Impurity-1

Formula: C₂₄H₂₃FN₄O₃
MW: 434.5 g/mol

VQ-005431

Reference Standard

Oleamide chemical structure

CAS: 301-02-0
Formula: C₁₈H₃₅NO
MW: 281.5 g/mol

VQ-027155

Reference Standard

Olmesartan Dimer Ester Impurity chemical structure

Olmesartan Dimer Ester Impurity

CAS: 1040250-19-8
Formula: C₄₈H₅₀N₁₂O₅
MW: 875 g/mol

VQ-026989

Reference Standard

Olmesartan Dimer Impurity chemical structure

Olmesartan Dimer Impurity

CAS: 1454571-97-1
Formula: C₅₃H₅₄N₁₂O₉
MW: 1003.1 g/mol

VQ-027000

Reference Standard

Olmesartan Ethyl Ester chemical structure

Olmesartan Ethyl Ester

CAS: 144689-23-6
Formula: C₂₆H₃₀N₆O₃
MW: 474.6 g/mol

VQ-023329

Reference Standard

Olmesartan Imidazole Diacid Impurity chemical structure

Olmesartan Imidazole Diacid Impurity

CAS: 58954-23-7
Formula: C₈H₁₀N₂O₄
MW: 198.18 g/mol

VQ-038739

Reference Standard

Olmesartan Impurity 10 chemical structure

Olmesartan Impurity 10

CAS: 4437-70-1
Formula: C₅H₈O₃
MW: 116.11 g/mol

VQ-038743

Reference Standard

Olmesartan Impurity 11 chemical structure

Olmesartan Impurity 11

CAS: 114772-53-1
Formula: C₁₄H₁₁N
MW: 193.24 g/mol

In stock

Reference Standard

Olmesartan Impurity 20 chemical structure

Olmesartan Impurity 20

CAS: 124750-51-2
Formula: C₃₃H₂₅BrN₄
MW: 557.5 g/mol

In stock

Reference Standard

Olmesartan Lactone Impurity chemical structure

Olmesartan Lactone Impurity

CAS: 849206-43-5
Formula: C₂₄H₂₄N₆O₂
MW: 428.5 g/mol

In stock

Reference Standard

Olmesartan Medoxomil Ester Dimer chemical structure

Olmesartan Medoxomil Ester Dimer

CAS: 1418133-31-9
Formula: C₅₃H₅₄N₁₂O₈
MW: 987.1 g/mol

VQ-032242

Reference Standard

Olmesartan Medoxomil Impurity 5 chemical structure

Olmesartan Medoxomil Impurity 5

CAS: 80841-78-7
Formula: C₅H₅ClO₃
MW: 148.54 g/mol

VQ-005435

Reference Standard

Olmesartan medoxomil methyl ether

Olmesartan medoxomil methyl ether

CAS: 896419-17-3
Formula: C₃₀H₃₂N₆O₆
MW: 572.62 g/mol

VQ-023323

Reference Standard

Olmesartan Methyl Ester chemical structure

Olmesartan Methyl Ester

CAS: 1347262-29-6
Formula: C₂₅H₂₈N₆O₃
MW: 460.5 g/mol

VQ-026993

Reference Standard

Olmesartan Methyl Ketone chemical structure

Olmesartan Methyl Ketone

CAS: 1227626-45-0
Formula: C₂₅H₂₈N₆O₂
MW: 444.5 g/mol

VQ-038737

Reference Standard

Olodaterol Benzyl Ether chemical structure

Olodaterol Benzyl Ether

CAS: 869478-13-7
Formula: C₂₈H₃₂N₂O₅
MW: 476.6 g/mol

VQ-038751

Reference Standard

Olodaterol Impurity 9 chemical structure

Olodaterol Impurity 9

CAS: 3013645-18-3
Formula: C₂₂H₂₆N₂O₅
MW: 398.5 g/mol

VQ-038753

Reference Standard

Olopatadine Acetaldehyde chemical structure

Olopatadine Acetaldehyde

CAS: 1376615-97-2
Formula: C₂₁H₂₃NO₂
MW: 321.4 g/mol

VQ-023334

Reference Standard

Olopatadine Amide chemical structure

Olopatadine Amide

CAS: 872040-99-8
Formula: C₂₁H₂₄N₂O₂
MW: 336.4 g/mol

VQ-045124

Reference Standard

Olopatadine Amide Impurity chemical structure

Olopatadine Amide Impurity

CAS: 872041-02-6
Formula: C₂₃H₂₈N₂O₂
MW: 364.5 g/mol

VQ-023336

Reference Standard

Olopatadine Impurity 8

Olopatadine Impurity 8

CAS: 113835-75-9
Formula: C₂₂H₂₅NO₃
MW: 351.44 g/mol

VQ-049310

Reference Standard

Olopatadine Isopropyl Ester chemical structure

Olopatadine Isopropyl Ester

CAS: 1206456-44-1
Formula: C₂₄H₂₉NO₃
MW: 379.5 g/mol

VQ-024078

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