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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

Mexiletine EP Impurity C chemical structure

Mexiletine EP Impurity C

CAS: 2059988-38-2
Formula: C₂₂H₃₂N₂O₂
MW: 356.5 g/mol

VQ-031868

Reference Standard

Mexiletine EP Impurity D chemical structure

Mexiletine EP Impurity D

CAS: 26583-71-1
Formula: C₁₁H₁₇NO
MW: 179.26 g/mol

VQ-031869

Reference Standard

Mexiletine HCl Impurities,KOE 5692 Cyclicl imine impurity chemical structure

Mexiletine HCl Impurities,KOE 5692 Cyclicl imine impurity

CAS: 284486-96-0
Formula: C₁₁H₁₃NO
MW: 175.23 g/mol

VQ-026674

Reference Standard

Mexiletine Hydrochloride chemical structure

Mexiletine Hydrochloride

CAS: 5370-01-4
Formula: C₁₁H₁₈ClNO
MW: 215.72 g/mol

VQ-031866

Reference Standard

Mexiletine-d6 Hydrochloride chemical structure

Mexiletine-d6 Hydrochloride

CAS: 1329835-60-0
Formula: C₁₁H₁₈ClNO
MW: 221.75 g/mol

VQ-038389

Reference Standard

MexiletineHydrochloride EP Impurity D chemical structure

MexiletineHydrochloride EP Impurity D

CAS: 2724689-76-1
Formula: C₁₁H₁₈ClNO
MW: 215.72 g/mol

VQ-026675

Reference Standard

MGA-C13 chemical structure

CAS: 2102603-26-7
Formula: C₉₃H₁₆₈O₃₆
MW: 1862.3 g/mol

VQ-051820

Reference Standard

Mianserin EP Impurity A chemical structure

Mianserin EP Impurity A

CAS: 57321-32-1
Formula: C₁₈H₂₂N₂O
MW: 282.4 g/mol

VQ-023127

Reference Standard

Mianserin EP Impurity D chemical structure

Mianserin EP Impurity D

CAS: 157994-98-4
Formula: C₂₄H₂₆N₂O
MW: 358.5 g/mol

VQ-034866

Reference Standard

Mianserin EP Impurity E chemical structure

Mianserin EP Impurity E

CAS: 71936-92-0
Formula: C₁₇H₁₈N₂
MW: 250.34 g/mol

VQ-026676

Reference Standard

Mianserin EP Impurity F chemical structure

Mianserin EP Impurity F

CAS: 157995-00-1
Formula: C₂₄H₂₄N₂
MW: 340.5 g/mol

VQ-026677

Reference Standard

Mianserin Hydrochloride chemical structure

Mianserin Hydrochloride

CAS: 21535-47-7
Formula: C₁₈H₂₁ClN₂
MW: 300.8 g/mol

VQ-023126

Reference Standard

Micafungin chemical structure

CAS: 235114-32-6
Formula: C₅₆H₇₁N₉O₂₃S
MW: 1270.3 g/mol

VQ-031873

Reference Standard

Micafungin Epimer Impurity chemical structure

Micafungin Epimer Impurity

CAS: 1392514-05-4
Formula: C₅₆H₇₀N₉NaO₂₃S
MW: 1292.3 g/mol

VQ-031874

Reference Standard

Micafungin Impurity 20

Micafungin Impurity 20

CAS: 179163-68-9
Formula: C₂₁H₂₁NO₄
MW: 351.4 g/mol

VQ-049103

Reference Standard

Micafungin Open Ring Analog (Sodium salt) chemical structure

Micafungin Open Ring Analog (Sodium salt)

CAS: 539823-82-0
Formula: C₅₆H₇₀N₉NaO₂₃S
MW: 1292.3 g/mol

VQ-026678

Reference Standard

Micafungin serine analog chemical structure

Micafungin serine analog

CAS: 1392514-04-3
Formula: C₅₅H₆₈N₉NaO₂₃S
MW: 1278.2 g/mol

VQ-026681

Reference Standard

Micafungin Side Chain Acid chemical structure

Micafungin Side Chain Acid

CAS: 179162-55-1
Formula: C₂₁H₂₁NO₄
MW: 351.4 g/mol

VQ-031876

Reference Standard

Micafungin Side Chain Acid Benzotriazole Ester chemical structure

Micafungin Side Chain Acid Benzotriazole Ester

CAS: 235112-66-0
Formula: C₂₇H₂₄N₄O₄
MW: 468.5 g/mol

VQ-031877

Reference Standard

Micafungin Sodium chemical structure

Micafungin Sodium

CAS: 208538-73-2
Formula: C₅₆H₇₀N₉NaO₂₃S
MW: 1292.3 g/mol

VQ-031872

Reference Standard

Micafungin Sodium Stereoisomer chemical structure

Micafungin Sodium Stereoisomer

CAS: 1686155-92-9
Formula: C₅₆H₇₀N₉NaO₂₃S
MW: 1292.3 g/mol

VQ-044885

Reference Standard

Miconazole chemical structure

CAS: 22916-47-8
Formula: C₁₈H₁₄Cl₄N₂O
MW: 416.1 g/mol

VQ-026683

Reference Standard

Miconazole D5 Nitrate (Major) chemical structure

Miconazole D5 Nitrate (Major)

CAS: 1216653-51-8
Formula: C₁₈H₁₅Cl₄N₃O₄
MW: 484.2 g/mol

VQ-049106

Reference Standard

Miconazole EP impurity C chemical structure

Miconazole EP impurity C

CAS: 67358-54-7
Formula: C₁₅H₁₃Cl₄NO
MW: 365.1 g/mol

VQ-023128

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