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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

Pioglitazone Aldehyde Impurity chemical structure

Pioglitazone Aldehyde Impurity

CAS: 114393-97-4
Formula: C₁₆H₁₇NO₂
MW: 255.31 g/mol

VQ-033199

Reference Standard

Pioglitazone Amino Impurity chemical structure

Pioglitazone Amino Impurity

CAS: 85583-40-0
Formula: C₁₅H₁₈N₂O
MW: 242.32 g/mol

VQ-035486

Reference Standard

Pioglitazone Bromo Impurity chemical structure

Pioglitazone Bromo Impurity

CAS: 669716-58-9
Formula: C₁₅H₁₆BrNO
MW: 306.2 g/mol

VQ-027507

Reference Standard

Pioglitazone Didehydro Hydroxy Impurity chemical structure

Pioglitazone Didehydro Hydroxy Impurity

CAS: 646519-84-8
Formula: C₁₉H₁₈N₂O₄S
MW: 370.4 g/mol

VQ-035394

Reference Standard

Pioglitazone Fluoro Impurity chemical structure

Pioglitazone Fluoro Impurity

CAS: 291536-42-0
Formula: C₁₀H₈FNO₂S
MW: 225.24 g/mol

VQ-041494

Reference Standard

Pioglitazone Imino Impurity chemical structure

Pioglitazone Imino Impurity

CAS: 105355-26-8
Formula: C₁₉H₂₁N₃O₂S
MW: 355.5 g/mol

In stock

Reference Standard

Pioglitazone Impurity 5 chemical structure

Pioglitazone Impurity 5

CAS: 1526933-30-1
Formula: C₁₀H₁₃NO
MW: 163.22 g/mol

In stock

Reference Standard

Pioglitazone Impurity 6 chemical structure

Pioglitazone Impurity 6

CAS: 127676-18-0
Formula: C₁₀H₁₅NO₂
MW: 181.23 g/mol

In stock

Reference Standard

Pioglitazone Impurity 9 chemical structure

Pioglitazone Impurity 9

CAS: 103788-60-9
Formula: C₁₀H₇NO₃S
MW: 221.23 g/mol

In stock

Reference Standard

Pioglitazone Pyridine-6-[4-[2-[5-ethyl-6-[4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl] chemical structure

Pioglitazone Pyridine-6-[4-[2-[5-ethyl-6-[4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl]

CAS: 669716-56-7
Formula: C₃₄H₃₅N₃O₄S
MW: 581.7 g/mol

VQ-027509

Reference Standard

Pioglitazone Sulfonic Acid Impurity chemical structure

Pioglitazone Sulfonic Acid Impurity

CAS: 625853-73-8
Formula: C₁₈H₂₂N₂O₅S
MW: 378.4 g/mol

VQ-041493

Reference Standard

Pipamperone Defluorinated Derivative Impurity

Pipamperone Defluorinated Derivative Impurity

CAS: 97733-77-2
Formula: C₂₁H₃₁N₃O₂ : 2(HCl)
MW: 430.41 g/mol

VQ-044654

Reference Standard

Piperacillin dimer chemical structure

Piperacillin dimer

CAS: 2170771-53-4
Formula: C₄₆H₅₄N₁₀O₁₄S₂
MW: 1035.1 g/mol

VQ-041505

Reference Standard

Piperacilloic Acid chemical structure

Piperacilloic Acid

CAS: 64817-22-7
Formula: C₂₃H₂₉N₅O₈S
MW: 535.6 g/mol

VQ-033204

Reference Standard

Piperaquine Impurity E chemical structure

Piperaquine Impurity E

CAS: 86486-21-7
Formula: C₃₆H₄₆Cl₂N₈
MW: 661.7 g/mol

In stock

Reference Standard

Piperaquine Impurity G chemical structure

Piperaquine Impurity G

Formula: C₂₇H₃₀Cl₂N₆
MW: 509.5 g/mol

In stock

Reference Standard

Piperaquine Impurity H chemical structure

Piperaquine Impurity H

CAS: 31502-87-1
Formula: C₂₂H₁₈Cl₂N₄
MW: 409.3 g/mol

VQ-027516

Reference Standard

Piperaquine Impurity-G(Stage-I) chemical structure

Piperaquine Impurity-G(Stage-I)

CAS: 1235972-74-3
Formula: C₁₈H₂₂ClN₃O₂
MW: 347.8 g/mol

In stock

Reference Standard

Piperaquine Impurity-G(Stage-II Freebase) chemical structure

Piperaquine Impurity-G(Stage-II Freebase)

CAS: 837-52-5
Formula: C₁₃H₁₄ClN₃
MW: 247.72 g/mol

VQ-005538

Reference Standard

Piperaquine Impurity-G(Stage-II) chemical structure

Piperaquine Impurity-G(Stage-II)

CAS: 1143349-11-4
Formula: C₁₃H₁₅Cl₂N₃
MW: 284.18 g/mol

In stock

Reference Standard

Piperazine Dihydrochloride chemical structure

Piperazine Dihydrochloride

CAS: 142-64-3
Formula: C₄H₁₂Cl₂N₂
MW: 159.05 g/mol

VQ-027107

Reference Standard

Piperazine Impurity 7 chemical structure

Piperazine Impurity 7

CAS: 119891-85-9
Formula: C₁₄H₂₆N₂
MW: 222.37 g/mol

VQ-041900

Reference Standard

Piperazine-1-carbonyl chloride chemical structure

Piperazine-1-carbonyl chloride

CAS: 69433-07-4
Formula: C₅H₉ClN₂O
MW: 148.59 g/mol

VQ-032937

Reference Standard

Piperitone chemical structure

CAS: 89-81-6
Formula: C₁₀H₁₆O
MW: 152.23 g/mol

VQ-027120

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