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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

Fludarabine Phosphate EP Impurity F chemical structure

Fludarabine Phosphate EP Impurity F

CAS: 159002-28-5
Formula: C₁₂H₁₈N₅O₈P
MW: 391.27 g/mol

VQ-025814

Reference Standard

Fludarabine Phosphate EP Impurity G chemical structure

Fludarabine Phosphate EP Impurity G

CAS: 548774-56-7
Formula: C₁₀H₁₂ClFN₅O₆P
MW: 383.66 g/mol

VQ-025815

Reference Standard

Fludarabine Phosphate EP Impurity H chemical structure

Fludarabine Phosphate EP Impurity H

CAS: 548774-57-8
Formula: C₁₀H₁₀FN₅O₃
MW: 267.22 g/mol

VQ-030779

Reference Standard

Fludarabine Phosphate EP Impurity I chemical structure

Fludarabine Phosphate EP Impurity I

CAS: 7561-54-8
Formula: C₁₀H₁₅N₆O₇P
MW: 362.24 g/mol

VQ-030780

Reference Standard

Fludarabine Phosphate Impurity B chemical structure

Fludarabine Phosphate Impurity B

CAS: 149297-79-0
Formula: C₅H₅N₅O
MW: 151.13 g/mol

VQ-048411

Reference Standard

Fludeoxyglucose chemical structure

Fludeoxyglucose

CAS: 29702-43-0
Formula: C₆H₁₁FO₅
MW: 182.15 g/mol

VQ-037320

Reference Standard

Fludioxonil chemical structure

CAS: 131341-86-1
Formula: C₁₂H₆F₂N₂O₂
MW: 248.18 g/mol

VQ-038875

Reference Standard

Fludrocortisone chemical structure

Fludrocortisone

CAS: 127-31-1
Formula: C₂₁H₂₉FO₅
MW: 380.4 g/mol

VQ-025817

Reference Standard

Fludrocortisone acetate chemical structure

Fludrocortisone acetate

CAS: 514-36-3
Formula: C₂₃H₃₁FO₆
MW: 422.5 g/mol

VQ-025816

Reference Standard

Flufenacet chemical structure

CAS: 142459-58-3
Formula: C₁₄H₁₃F₄N₃O₂S
MW: 363.33 g/mol

VQ-032580

Reference Standard

Flufenamic Acid Glucuronide chemical structure

Flufenamic Acid Glucuronide

CAS: 87816-74-8
Formula: C₂₀H₁₈F₃NO₈
MW: 457.4 g/mol

VQ-044211

Reference Standard

Flufenazin-d8 chemical structure

CAS: 1323633-98-2
Formula: C₂₂H₂₆F₃N₃OS
MW: 445.6 g/mol

VQ-037352

Reference Standard

Flumazenil chemical structure

CAS: 78755-81-4
Formula: C₁₅H₁₄FN₃O₃
MW: 303.29 g/mol

VQ-030784

Reference Standard

Flumazenil EP Impurity A chemical structure

Flumazenil EP Impurity A

CAS: 84378-44-9
Formula: C₁₃H₁₀FN₃O₃
MW: 275.23 g/mol

VQ-025819

Reference Standard

Flumazenil EP Impurity B chemical structure

Flumazenil EP Impurity B

CAS: 131666-45-0
Formula: C₁₅H₁₅N₃O₄
MW: 301.3 g/mol

VQ-025818

Reference Standard

Flumazenil EP Impurity D chemical structure

Flumazenil EP Impurity D

CAS: 78755-80-3
Formula: C₁₀H₉FN₂O₂
MW: 208.19 g/mol

VQ-022665

Reference Standard

Flumazenil EP Impurity E chemical structure

Flumazenil EP Impurity E

CAS: 78756-03-3
Formula: C₁₅H₁₅N₃O₃
MW: 285.3 g/mol

VQ-025820

Reference Standard

Flumazenil EP Impurity F chemical structure

Flumazenil EP Impurity F

CAS: 78756-33-9
Formula: C₁₅H₁₄ClN₃O₃
MW: 319.74 g/mol

VQ-025821

Reference Standard

Flumequine chemical structure

CAS: 42835-25-6
Formula: C₁₄H₁₂FNO₃
MW: 261.25 g/mol

VQ-025822

Reference Standard

Flumequine EP Impurity A

Flumequine EP Impurity A

CAS: 42835-34-7
Formula: C₁₄H₁₃NO₃
MW: 243.26 g/mol

VQ-030786

Reference Standard

Flumequine EP Impurity B chemical structure

Flumequine EP Impurity B

CAS: 42835-47-2
Formula: C₁₆H₁₆FNO₃
MW: 289.3 g/mol

VQ-030785

Reference Standard

Flumethasone chemical structure

CAS: 2135-17-3
Formula: C₂₂H₂₈F₂O₅
MW: 410.5 g/mol

VQ-025823

Reference Standard

Flumethasone 21-Acetate chemical structure

Flumethasone 21-Acetate

CAS: 2823-42-9
Formula: C₂₄H₃₀F₂O₆
MW: 452.5 g/mol

VQ-025824

Reference Standard

Flumethasone 21-Pivalate chemical structure

Flumethasone 21-Pivalate

CAS: 2002-29-1
Formula: C₂₇H₃₆F₂O₆
MW: 494.6 g/mol

VQ-025825

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