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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

Ropivacaine N-Oxide chemical structure

Ropivacaine N-Oxide

CAS: 1391053-59-0
Formula: C₁₇H₂₆N₂O₂
MW: 290.4 g/mol

VQ-033650

Reference Standard

Rosavin chemical structure

CAS: 84954-92-7
Formula: C₂₀H₂₈O₁₀
MW: 428.4 g/mol

VQ-033651

Reference Standard

Rosiglitazone chemical structure

CAS: 122320-73-4
Formula: C₁₈H₁₉N₃O₃S
MW: 357.4 g/mol

VQ-033652

Reference Standard

Rosiglitazone maleate chemical structure

Rosiglitazone maleate

CAS: 155141-29-0
Formula: C₂₂H₂₃N₃O₇S
MW: 473.5 g/mol

VQ-042004

Reference Standard

Rosuvastatin chemical structure

CAS: 287714-41-4
Formula: C₂₂H₂₈FN₃O₆S
MW: 481.5 g/mol

In stock

Reference Standard

Rosuvastatin (2S,4S)-Lactone chemical structure

Rosuvastatin (2S,4S)-Lactone

CAS: 1809092-87-2
Formula: C₂₂H₂₆FN₃O₅S
MW: 463.5 g/mol

VQ-044650

Reference Standard

Rosuvastatin (3R,5R)-Isomer Methyl Ester chemical structure

Rosuvastatin (3R,5R)-Isomer Methyl Ester

CAS: 1776088-23-3
Formula: C₂₃H₃₀FN₃O₆S
MW: 495.6 g/mol

VQ-027910

Reference Standard

Rosuvastatin (3R,5R)-Isomer t-Butyl Ester chemical structure

Rosuvastatin (3R,5R)-Isomer t-Butyl Ester

CAS: 2162136-65-2
Formula: C₂₆H₃₆FN₃O₆S
MW: 537.6 g/mol

VQ-023689

Reference Standard

Rosuvastatin (3S,5R)-Isomer Methyl Ester chemical structure

Rosuvastatin (3S,5R)-Isomer Methyl Ester

CAS: 1112048-62-0
Formula: C₂₉H₄₀FN₃O₇S
MW: 593.7 g/mol

VQ-033664

Reference Standard

Rosuvastatin (3S,5S)-Isomer Calcium chemical structure

Rosuvastatin (3S,5S)-Isomer Calcium

CAS: 2185805-14-3
Formula: C₄₄H₅₄CaF₂N₆O₁₂S₂
MW: 1001.1 g/mol

VQ-043285

Reference Standard

Rosuvastatin (3S,5S)-Isomer t-Butyl Ester chemical structure

Rosuvastatin (3S,5S)-Isomer t-Butyl Ester

CAS: 2185805-16-5
Formula: C₂₆H₃₆FN₃O₆S
MW: 537.6 g/mol

VQ-027916

Reference Standard

Rosuvastatin (6R)-Isomer Calcium Salt chemical structure

Rosuvastatin (6R)-Isomer Calcium Salt

CAS: 854898-49-0
Formula: C₄₄H₅₄CaF₂N₆O₁₂S₂
MW: 1001.1 g/mol

VQ-027904

Reference Standard

Rosuvastatin (6R)-Lactone Impurity chemical structure

Rosuvastatin (6R)-Lactone Impurity

CAS: 854898-46-7
Formula: C₂₂H₂₆FN₃O₅S
MW: 463.5 g/mol

VQ-045425

Reference Standard

Rosuvastatin (6S)-Isomer Calcium Salt chemical structure

Rosuvastatin (6S)-Isomer Calcium Salt

CAS: 854898-50-3
Formula: C₄₄H₅₄CaF₂N₆O₁₂S₂
MW: 1001.1 g/mol

VQ-033663

Reference Standard

Rosuvastatin (6S)-Lactone Impurity chemical structure

Rosuvastatin (6S)-Lactone Impurity

CAS: 854898-47-8
Formula: C₂₂H₂₆FN₃O₅S
MW: 463.5 g/mol

VQ-035218

Reference Standard

Rosuvastatin 2,3-Anhydro Acid Sodium Salt

Rosuvastatin 2,3-Anhydro Acid Sodium Salt

CAS: 1659301-59-3
Formula: C₂₂H₂₅FN₃O₅SNa
MW: 485.51 g/mol

VQ-033659

Reference Standard

Rosuvastatin 3-Oxo Acid

Rosuvastatin 3-Oxo Acid

CAS: 1803023-43-9
Formula: C₂₂H₂₆FN₃O₆S
MW: 479.52 g/mol

VQ-042017

Reference Standard

Rosuvastatin 3-Oxo Acid Sodium Salt chemical structure

Rosuvastatin 3-Oxo Acid Sodium Salt

CAS: 1346747-49-6
Formula: C₂₂H₂₆FN₃O₆S
MW: 479.5 g/mol

VQ-027903

Reference Standard

Rosuvastatin 4,5-Anhydro Acid chemical structure

Rosuvastatin 4,5-Anhydro Acid

CAS: 1346606-44-7
Formula: C₂₂H₂₆FN₃O₅S
MW: 463.5 g/mol

VQ-033661

Reference Standard

Rosuvastatin 4,6-Diene Impurity chemical structure

Rosuvastatin 4,6-Diene Impurity

CAS: 1422954-13-9
Formula: C₂₂H₂₆FN₃O₅S
MW: 463.5 g/mol

VQ-033656

Reference Standard

Rosuvastatin 5-Oxo Acid Methyl Ester chemical structure

Rosuvastatin 5-Oxo Acid Methyl Ester

CAS: 147118-39-6
Formula: C₂₃H₂₈FN₃O₆S
MW: 493.5 g/mol

VQ-027902

Reference Standard

Rosuvastatin 5-Oxo Acid t-Butyl Ester chemical structure

Rosuvastatin 5-Oxo Acid t-Butyl Ester

CAS: 615556-96-2
Formula: C₂₆H₃₄FN₃O₆S
MW: 535.6 g/mol

VQ-045426

Reference Standard

Rosuvastatin Acetonide Carboxylic acid chemical structure

Rosuvastatin Acetonide Carboxylic acid

CAS: 894787-93-0
Formula: C₂₅H₃₂FN₃O₆S
MW: 521.6 g/mol

VQ-033665

Reference Standard

Rosuvastatin Acid Allyl Ester chemical structure

Rosuvastatin Acid Allyl Ester

CAS: 1352945-05-1
Formula: C₂₅H₃₂FN₃O₆S
MW: 521.6 g/mol

VQ-045427

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