Impurity reference standards

Fesoterodine impurity standards

This page brings together 16 Fesoterodine related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 3 metabolites or hydroxylated analogues.

16reference materials

3metabolites

Parent API

Fesoterodine

CAS: 286930-02-7
Formula: C₂₆H₃₇NO₃
MW: 411.6 g/mol
Code: ZX-006550

Batches are supplied with a certificate of analysis, and the supporting spectra can be sent ahead of a purchase order so your QA team can review them. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.

By impurity type

Metabolites3Hydroxy, desmethyl and conjugated forms

Counts are based on product names. One compound can fall into more than one type.

All Fesoterodine reference materials

1–16 of 16 standards

(R,E)-4-((3-(3-(Diisopropylamino)-1-phenylpropyl)-4-hydroxybenzyl)oxy)-4-oxobut-2-enoic Acid

CAS: 1428856-47-6
Formula: C₂₆H₃₃NO₅
MW: 439.5 g/mol

ZX-029487

(S)-Fesoterodine Fumarate

CAS: 1431511-18-0
Formula: C₃₀H₄₁NO₇
MW: 527.6 g/mol

ZX-024726

[2-[(1R)-3-(Di(propan-2-yl)amino)-1-phenylpropyl]-4-formylphenyl] isobutyrate

CAS: 1435768-96-9
Formula: C₂₆H₃₅NO₃
MW: 409.6 g/mol

ZX-024727

2-(3-(Diisopropylamino)-1-phenylpropyl)-4-formylphenyl Isobutyrate

CAS: 1333234-71-1
Formula: C₂₆H₃₅NO₃
MW: 409.6 g/mol

ZX-021671

3-(3-(Diisopropylamino)-1-phenylpropyl)-4-(isobutyryloxy)benzoic Acid

CAS: 1262778-55-1
Formula: C₂₆H₃₅NO₄
MW: 425.6 g/mol

ZX-027740

3,4-Dihydro-2-hydroxy-4-phenyl-2H-1-benzopyran-6-methanol

CAS: 959624-24-9
Formula: C₁₆H₁₆O₃
MW: 256.3 g/mol

ZX-033460

Fesoterodine

CAS: 286930-02-7
Formula: C₂₆H₃₇NO₃
MW: 411.6 g/mol

ZX-006550

Fesoterodine Aldehyde Of Diol

CAS: 214601-12-4
Formula: C₂₂H₂₉NO₂
MW: 339.5 g/mol

ZX-021670

Fesoterodine Fumarate

CAS: 286930-03-8
Formula: C₃₀H₄₁NO₇
MW: 527.6 g/mol

ZX-006551

Fesoterodine Fumarate Ester

CAS: 1254942-29-4
Formula: C₃₀H₃₉NO₆
MW: 509.6 g/mol

ZX-020282

Fesoterodine Propionate impurity

CAS: 1208313-16-9
Formula: C₂₅H₃₅NO₃
MW: 397.5 g/mol

ZX-029486

Fesoterodinyl (4-Hydroxy-tolterodine phenoxy) Ether

CAS: 1380491-71-3
Formula: C₄₈H₆₆N₂O₄
MW: 735 g/mol

ZX-024728

N-Desisopropyl desfesoterodine

CAS: 194482-42-3
Formula: C₁₉H₂₅NO₂
MW: 299.4 g/mol

ZX-029484

O-Des(2-Methylpropan-1-one)-O-Benzyl-Fesoterodine

CAS: 156755-37-2
Formula: C₂₉H₃₇NO₂
MW: 431.6 g/mol

ZX-024730

O-Isobutyryl (R)-Fesoterodine

CAS: 1208313-13-6
Formula: C₃₀H₄₃NO₄
MW: 481.7 g/mol

ZX-021669

Tolterodine Acid

CAS: 194482-44-5
Formula: C₂₂H₂₉NO₃
MW: 355.5 g/mol

ZX-024729

Questions

Fesoterodine impurities, answered

What Fesoterodine reference materials are available?

The catalogue currently lists 16 compounds for Fesoterodine, including 3 metabolites or hydroxylated analogues. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.

What documents come with a Fesoterodine impurity standard?

A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.

Can Zemixal make a Fesoterodine impurity that is not listed?

Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.