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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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Ractopamine Hydrochloride chemical structure

Ractopamine Hydrochloride

CAS: 90274-24-1
Formula: C₁₈H₂₄ClNO₃
MW: 337.8 g/mol

VQ-033422

Reference Standard

Rafoxanide-13C6 chemical structure

Rafoxanide-13C6

CAS: 1353867-98-7
Formula: C₁₉H₁₁Cl₂I₂NO₃
MW: 631.96 g/mol

VQ-041814

Reference Standard

Ralfinamide chemical structure

CAS: 133865-88-0
Formula: C₁₇H₁₉FN₂O₂
MW: 302.34 g/mol

VQ-027722

Reference Standard

Raloxifene chemical structure

CAS: 84449-90-1
Formula: C₂₈H₂₇NO₄S
MW: 473.6 g/mol

VQ-007692

Reference Standard

Raloxifene 4-Monomethyl Ether chemical structure

Raloxifene 4-Monomethyl Ether

CAS: 185415-07-0
Formula: C₂₉H₂₉NO₄S
MW: 487.6 g/mol

VQ-041815

Reference Standard

Raloxifene 4'-Glucuronide chemical structure

Raloxifene 4'-Glucuronide

CAS: 182507-22-8
Formula: C₃₄H₃₅NO₁₀S
MW: 649.7 g/mol

VQ-033423

Reference Standard

Raloxifene 6-Monomethyl Ether chemical structure

Raloxifene 6-Monomethyl Ether

CAS: 178451-13-3
Formula: C₂₉H₂₉NO₄S
MW: 487.6 g/mol

VQ-027724

Reference Standard

Raloxifene Benzoic Acid Impurity Hydrochloride chemical structure

Raloxifene Benzoic Acid Impurity Hydrochloride

CAS: 84449-80-9
Formula: C₁₄H₂₀ClNO₃
MW: 285.76 g/mol

VQ-023604

Reference Standard

Raloxifene Dimer Impurity chemical structure

Raloxifene Dimer Impurity

CAS: 618902-12-8
Formula: C₅₆H₅₂N₂O₈S₂
MW: 945.2 g/mol

In stock

Reference Standard

Raloxifene Dimethoxy Impurity chemical structure

Raloxifene Dimethoxy Impurity

CAS: 84541-38-8
Formula: C₃₀H₃₁NO₄S
MW: 501.6 g/mol

VQ-023603

Reference Standard

Raloxifene EP Impurity A chemical structure

Raloxifene EP Impurity A

CAS: 1159977-58-8
Formula: C₄₂H₄₄N₂O₆S
MW: 704.9 g/mol

In stock

Reference Standard

Raloxifene EP Impurity B chemical structure

Raloxifene EP Impurity B

CAS: 1391054-73-1
Formula: C₂₈H₂₇NO₄S
MW: 473.6 g/mol

VQ-027723

Reference Standard

Raloxifene EP Impurity C chemical structure

Raloxifene EP Impurity C

CAS: 195454-31-0
Formula: C₂₈H₂₇NO₅S
MW: 489.6 g/mol

In stock

Reference Standard

Raloxifene Hydrochloride chemical structure

Raloxifene Hydrochloride

CAS: 82640-04-8
Formula: C₂₈H₂₈ClNO₄S
MW: 510 g/mol

VQ-007693

Reference Standard

Raloxifene Impurity 3 chemical structure

Raloxifene Impurity 3

CAS: 84449-65-0
Formula: C₁₆H₁₄O₆S₃
MW: 398.5 g/mol

In stock

Reference Standard

Raloxifene Impurity 30 chemical structure

Raloxifene Impurity 30

CAS: 89407-97-6
Formula: C₁₅H₂₁NO₃
MW: 263.33 g/mol

In stock

Reference Standard

Raloxifene Impurity 31 chemical structure

Raloxifene Impurity 31

CAS: 63762-93-6
Formula: C₁₅H₁₄O₃S
MW: 274.3 g/mol

VQ-041816

Reference Standard

Raloxifene Impurity 8 chemical structure

Raloxifene Impurity 8

CAS: 225648-21-5
Formula: C₁₅H₁₂O₂S
MW: 256.3 g/mol

In stock

Reference Standard

Raloxifene Impurity 9 chemical structure

Raloxifene Impurity 9

CAS: 175460-94-3
Formula: C₁₅H₁₂O₂S
MW: 256.3 g/mol

In stock

Reference Standard

Raloxifene Impurity A chemical structure

Raloxifene Impurity A

CAS: 84449-85-4
Formula: C₃₀H₃₂ClNO₈S₃
MW: 666.2 g/mol

VQ-023602

Reference Standard

Raloxifene-6-Glucuronide chemical structure

Raloxifene-6-Glucuronide

CAS: 174264-50-7
Formula: C₃₄H₃₅NO₁₀S
MW: 649.7 g/mol

VQ-033424

Reference Standard

Raloxifene-d4 chemical structure

CAS: 1185076-44-1
Formula: C₂₈H₂₇NO₄S
MW: 477.6 g/mol

VQ-041818

Reference Standard

Raltegravir chemical structure

CAS: 518048-05-0
Formula: C₂₀H₂₁FN₆O₅
MW: 444.4 g/mol

VQ-033426

Reference Standard

Raltegravir Beta-D-Glucuronide chemical structure

Raltegravir Beta-D-Glucuronide

CAS: 952654-62-5
Formula: C₂₆H₂₉FN₆O₁₁
MW: 620.5 g/mol

VQ-033431

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