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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

Lidocaine EP Impurity H chemical structure

Lidocaine EP Impurity H

CAS: 1131-01-7
Formula: C₁₀H₁₂ClNO
MW: 197.66 g/mol

In stock

Reference Standard

Lidocaine EP Impurity I chemical structure

Lidocaine EP Impurity I

CAS: 17289-53-1
Formula: C₁₄H₂₂N₂O
MW: 234.34 g/mol

VQ-026462

Reference Standard

Lidocaine EP Impurity I chemical structure

Lidocaine EP Impurity I

CAS: 17289-54-2
Formula: C₁₄H₂₃ClN₂O
MW: 270.8 g/mol

VQ-026466

Reference Standard

Lidocaine EP Impurity J chemical structure

Lidocaine EP Impurity J

CAS: 857570-37-7
Formula: C₁₄H₂₂N₂O
MW: 234.34 g/mol

VQ-026463

Reference Standard

Lidocaine EP Impurity J chemical structure

Lidocaine EP Impurity J

CAS: 1012864-23-1
Formula: C₁₄H₂₃ClN₂O
MW: 270.8 g/mol

VQ-031547

Reference Standard

Lidocaine EP Impurity K chemical structure

Lidocaine EP Impurity K

CAS: 74634-66-5
Formula: C₁₃H₂₀N₂O
MW: 220.31 g/mol

VQ-022993

Reference Standard

Lidocaine EP Impurity K Hydrochloride chemical structure

Lidocaine EP Impurity K Hydrochloride

CAS: 50295-20-0
Formula: C₁₃H₂₁ClN₂O
MW: 256.77 g/mol

VQ-038026

Reference Standard

Lidocaine Hydrochloride chemical structure

Lidocaine Hydrochloride

CAS: 73-78-9
Formula: C₁₄H₂₃ClN₂O
MW: 270.8 g/mol

In stock

Reference Standard

Lidocaine-D10 chemical structure

CAS: 851528-09-1
Formula: C₁₄H₂₂N₂O
MW: 242.39 g/mol

VQ-048886

Reference Standard

Lidocaine-d10 Hydrochloride chemical structure

Lidocaine-d10 Hydrochloride

CAS: 1189959-13-4
Formula: C₁₄H₂₃ClN₂O
MW: 280.86 g/mol

VQ-038033

Reference Standard

Lifitegrast chemical structure

CAS: 1025967-78-5
Formula: C₂₉H₂₄Cl₂N₂O₇S
MW: 615.5 g/mol

VQ-031550

Reference Standard

Lifitegrast Impurity 14 chemical structure

Lifitegrast Impurity 14

CAS: 2295862-24-5
Formula: C₃₁H₂₈Cl₂N₂O₇S
MW: 643.5 g/mol

VQ-026468

Reference Standard

Lifitegrast Impurity A chemical structure

Lifitegrast Impurity A

CAS: 2271054-95-4
Formula: C₂₀H₂₁Cl₃N₂O₅S
MW: 507.8 g/mol

VQ-038034

Reference Standard

Lifitegrast Impurity D chemical structure

Lifitegrast Impurity D

CAS: 2295862-00-7
Formula: C₂₉H₂₆N₂O₇S
MW: 546.6 g/mol

VQ-031552

Reference Standard

Lifitegrast Impurity F chemical structure

Lifitegrast Impurity F

CAS: 1194550-67-8
Formula: C₃₆H₃₀Cl₂N₂O₇S
MW: 705.6 g/mol

VQ-026469

Reference Standard

Lifitegrast Impurity G chemical structure

Lifitegrast Impurity G

CAS: 2295862-29-0
Formula: C₃₀H₂₆Cl₂N₂O₇S
MW: 629.5 g/mol

VQ-031553

Reference Standard

Lifitegrast R-Isomer chemical structure

Lifitegrast R-Isomer

CAS: 2271299-08-0
Formula: C₂₉H₂₄Cl₂N₂O₇S
MW: 615.5 g/mol

In stock

Reference Standard

Lifitegrast tertiary butyl ester impurity

Lifitegrast tertiary butyl ester impurity

CAS: 2414639-05-5
Formula: C₃₃H₃₂Cl₂N₂O₇S
MW: 671.59 g/mol

VQ-031554

Reference Standard

Ligliptin Impurity 43 chemical structure

Ligliptin Impurity 43

CAS: 1807608-59-8
Formula: C₂₅H₂₈N₈O₃
MW: 488.5 g/mol

VQ-044242

Reference Standard

Ligustilide chemical structure

CAS: 4431-01-0
Formula: C₁₂H₁₄O₂
MW: 190.24 g/mol

VQ-040486

Reference Standard

Limaprost chemical structure

CAS: 74397-12-9
Formula: C₂₂H₃₆O₅
MW: 380.5 g/mol

VQ-038039

Reference Standard

Limaprost-D3 chemical structure

CAS: 1263190-37-9
Formula: C₂₂H₃₆O₅
MW: 383.5 g/mol

VQ-048890

Reference Standard

Linaclotide chemical structure

CAS: 851199-59-2
Formula: C₅₉H₇₉N₁₅O₂₁S₆
MW: 1526.8 g/mol

VQ-031556

Reference Standard

Linaclotide Acetate chemical structure

Linaclotide Acetate

CAS: 851199-60-5
Formula: C₆₁H₈₃N₁₅O₂₃S₆
MW: 1586.8 g/mol

VQ-048891

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