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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

Senecionine chemical structure

CAS: 130-01-8
Formula: C₁₈H₂₅NO₅
MW: 335.4 g/mol

VQ-033808

Reference Standard

Senecionine N-Oxide chemical structure

Senecionine N-Oxide

CAS: 13268-67-2
Formula: C₁₈H₂₅NO₆
MW: 351.4 g/mol

VQ-033809

Reference Standard

Seneciphylline chemical structure

CAS: 480-81-9
Formula: C₁₈H₂₃NO₅
MW: 333.4 g/mol

VQ-033810

Reference Standard

Seneciphylline N-Oxide chemical structure

Seneciphylline N-Oxide

CAS: 38710-26-8
Formula: C₁₈H₂₃NO₆
MW: 349.4 g/mol

VQ-033811

Reference Standard

Senecivernine chemical structure

CAS: 72755-25-0
Formula: C₁₈H₂₅NO₅
MW: 335.4 g/mol

VQ-033812

Reference Standard

Senecivernine N-Oxide chemical structure

Senecivernine N-Oxide

CAS: 101687-28-9
Formula: C₁₈H₂₅NO₆
MW: 351.4 g/mol

VQ-033813

Reference Standard

Senkirkine chemical structure

CAS: 2318-18-5
Formula: C₁₉H₂₇NO₆
MW: 365.4 g/mol

VQ-042139

Reference Standard

Sennidin B chemical structure

CAS: 517-44-2
Formula: C₃₀H₁₈O₁₀
MW: 538.5 g/mol

VQ-040103

Reference Standard

Sennoside chemical structure

CAS: 517-43-1
Formula: C₄₂H₃₈O₂₀
MW: 862.7 g/mol

VQ-033814

Reference Standard

Sennoside A chemical structure

CAS: 81-27-6
Formula: C₄₂H₃₈O₂₀
MW: 862.7 g/mol

VQ-033815

Reference Standard

Sennoside B chemical structure

CAS: 128-57-4
Formula: C₄₂H₃₈O₂₀
MW: 862.7 g/mol

VQ-033816

Reference Standard

Serotonin chemical structure

CAS: 50-67-9
Formula: C₁₀H₁₂N₂O
MW: 176.21 g/mol

VQ-007750

Reference Standard

Serotonin Hydrochloride chemical structure

Serotonin Hydrochloride

CAS: 153-98-0
Formula: C₁₀H₁₃ClN₂O
MW: 212.67 g/mol

In stock

Reference Standard

Sertaconazole chemical structure

CAS: 99592-32-2
Formula: C₂₀H₁₅Cl₃N₂OS
MW: 437.8 g/mol

VQ-042140

Reference Standard

Sertaconazole Nitrate chemical structure

Sertaconazole Nitrate

CAS: 99592-39-9
Formula: C₂₀H₁₆Cl₃N₃O₄S
MW: 500.8 g/mol

VQ-028003

Reference Standard

Sertaconazole Nitrate EP Impurity A chemical structure

Sertaconazole Nitrate EP Impurity A

CAS: 24155-42-8
Formula: C₁₁H₁₀Cl₂N₂O
MW: 257.11 g/mol

VQ-022479

Reference Standard

Sertaconazole Nitrate EP Impurity B chemical structure

Sertaconazole Nitrate EP Impurity B

CAS: 17512-61-7
Formula: C₉H₆BrClS
MW: 261.57 g/mol

VQ-026222

Reference Standard

Sertaconazole nitrate EP Impurity C chemical structure

Sertaconazole nitrate EP Impurity C

CAS: 142181-53-1
Formula: C₉H₇ClOS
MW: 198.67 g/mol

VQ-028004

Reference Standard

Sertindole chemical structure

CAS: 106516-24-9
Formula: C₂₄H₂₆ClFN₄O
MW: 440.9 g/mol

VQ-042141

Reference Standard

Sertraline chemical structure

CAS: 79617-96-2
Formula: C₁₇H₁₇Cl₂N
MW: 306.2 g/mol

In stock

Reference Standard

Sertraline 2-one

Sertraline 2-one

CAS: 944054-44-8
Formula: C₁₆H₁₂Cl₂O
MW: 291.17 g/mol

VQ-028011

Reference Standard

Sertraline 2,3-Dichloro Hydrochloride Isomer chemical structure

Sertraline 2,3-Dichloro Hydrochloride Isomer

CAS: 1198084-29-5
Formula: C₁₇H₁₈Cl₃N
MW: 342.7 g/mol

In stock

Reference Standard

Sertraline 2,3-Dichloro Isomer

Sertraline 2,3-Dichloro Isomer

CAS: 1198115-10-4
Formula: C₁₇H₁₇Cl₂N
MW: 306.23 g/mol

VQ-005873

Reference Standard

Sertraline 4-Chloro cis Racemic Mixture

Sertraline 4-Chloro cis Racemic Mixture

CAS: 2990115-94-9
Formula: C₁₇H₁₉Cl₂N
MW: 308.25 g/mol

VQ-042148

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