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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

Palbociclib Sulfamic Acid Conjugate chemical structure

Palbociclib Sulfamic Acid Conjugate

CAS: 2204863-10-3
Formula: C₂₄H₂₉N₇O₅S
MW: 527.6 g/mol

VQ-043637

Reference Standard

Palbociclib Unknown Impurity 1

Palbociclib Unknown Impurity 1

Formula: C₂₈H₃₃N₇O₆
MW: 563.6 g/mol

In stock

Reference Standard

Palbociclib Vinyl Boc Impurity chemical structure

Palbociclib Vinyl Boc Impurity

CAS: 1941177-45-2
Formula: C₂₉H₃₇N₇O₃
MW: 531.6 g/mol

VQ-005480

Reference Standard

Palbociclib-2,6-bis-aminopyridine impurity chemical structure

Palbociclib-2,6-bis-aminopyridine impurity

CAS: 2458234-37-0
Formula: C₃₁H₃₉N₁₁O
MW: 581.7 g/mol

VQ-027363

Reference Standard

Paliperidone 9-Keto Impurity chemical structure

Paliperidone 9-Keto Impurity

CAS: 1189516-65-1
Formula: C₂₃H₂₅FN₄O₃
MW: 424.5 g/mol

VQ-023456

Reference Standard

Paliperidone Carboxylate Impurity chemical structure

Paliperidone Carboxylate Impurity

CAS: 1006685-69-3
Formula: C₂₄H₂₇FN₄O₅
MW: 470.5 g/mol

VQ-034877

Reference Standard

Paliperidone E-oxime chemical structure

Paliperidone E-oxime

CAS: 1388021-46-2
Formula: C₂₃H₂₈F₂N₄O₃
MW: 446.5 g/mol

VQ-033037

Reference Standard

Paliperidone Laurate chemical structure

Paliperidone Laurate

CAS: 2987406-52-8
Formula: C₃₅H₄₉FN₄O₄
MW: 608.8 g/mol

VQ-045134

Reference Standard

Paliperidone Tetradehydro Impurity chemical structure

Paliperidone Tetradehydro Impurity

CAS: 766485-15-8
Formula: C₂₃H₂₃FN₄O₃
MW: 422.5 g/mol

VQ-043821

Reference Standard

Paliperidone Z-Oxime chemical structure

Paliperidone Z-Oxime

CAS: 1388021-47-3
Formula: C₂₃H₂₈F₂N₄O₃
MW: 446.5 g/mol

VQ-027375

Reference Standard

Palonosetron (RS-Isomer) chemical structure

Palonosetron (RS-Isomer)

CAS: 149654-00-2
Formula: C₁₉H₂₄N₂O
MW: 296.4 g/mol

In stock

Reference Standard

Palonosetron Hydroxy Impurity

Palonosetron Hydroxy Impurity

CAS: 175648-32-5
Formula: C₁₉H₂₄N₂O₂
MW: 312.41 g/mol

VQ-005482

Reference Standard

Palonosetron Impurity 3 chemical structure

Palonosetron Impurity 3

CAS: 135729-78-1
Formula: C₁₈H₂₄N₂O
MW: 284.4 g/mol

In stock

Reference Standard

Palonosetron Impurity 4 chemical structure

Palonosetron Impurity 4

CAS: 2216753-67-0
Formula: C₁₈H₂₄N₂O
MW: 284.4 g/mol

In stock

Reference Standard

Pantoprazole Impurity (D And F) Mixture

Pantoprazole Impurity (D And F) Mixture

Formula: C₃₄H₃₄F₄N₆O₈S₂
MW: 794.18 g/mol

In stock

Reference Standard

Pantoprazole Impurity 1 chemical structure

Pantoprazole Impurity 1

CAS: 812664-93-0
Formula: C₁₆H₁₄ClF₂N₃O₄S
MW: 417.8 g/mol

In stock

Reference Standard

Pantoprazole Impurity 21

Pantoprazole Impurity 21

Formula: C₁₅H₁₃F₂N₃O₃
MW: 321.28 g/mol

In stock

Reference Standard

Pantoprazole Impurity 21 (N-1 Stage)

Pantoprazole Impurity 21 (N-1 Stage)

Formula: C₁₆H₁₅F₂N₃O₃
MW: 335.31 g/mol

In stock

Reference Standard

Pantoprazole Impurity 40 chemical structure

Pantoprazole Impurity 40

CAS: 1261747-80-1
Formula: C₇H₆F₂N₂O₃
MW: 204.13 g/mol

In stock

Reference Standard

Pantoprazole Impurity 70

Pantoprazole Impurity 70

Formula: C₂₄H₂₄F₂N₄O₆S
MW: 534.53 g/mol

VQ-005490

Reference Standard

Pantoprazole Impurity-1 (RRT~0.65) chemical structure

Pantoprazole Impurity-1 (RRT~0.65)

CAS: 107512-35-6
Formula: C₈H₁₁NO₂
MW: 153.18 g/mol

In stock

Reference Standard

PAPE-Ethyl carbamate chemical structure

PAPE-Ethyl carbamate

CAS: 2206827-12-3
Formula: C₁₆H₁₇N₃O₄
MW: 315.32 g/mol

VQ-023788

Reference Standard

para-Vortioxetine chemical structure

para-Vortioxetine

CAS: 1815608-51-5
Formula: C₁₈H₂₂N₂S
MW: 298.4 g/mol

VQ-024032

Reference Standard

para-Vortioxetine Hydrochloride chemical structure

para-Vortioxetine Hydrochloride

CAS: 3077786-27-4
Formula: C₁₈H₂₃ClN₂S
MW: 334.9 g/mol

VQ-045117

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