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VAQORACHEMICALS
Impurity reference standards

Zileuton impurities & reference standards

Characterised Zileuton impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.

11reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
Reference Standard
Zileuton chemical structure
Zileuton
CAS
111406-87-2
Formula
C11H12N2O2S
MW
236.29 g/mol
VQ-034738
Reference Standard
Zileuton Sulfoxide chemical structure
Zileuton Sulfoxide
CAS
1147524-83-1
Formula
C11H12N2O3S
MW
252.29 g/mol
VQ-034739
Reference Standard
Zileuton-d4 chemical structure
Zileuton-d4
CAS
1189878-76-9
Formula
C11H12N2O2S
MW
240.32 g/mol
VQ-043002

FAQs — Zileuton impurities

Which Zileuton impurities do you supply?

We list 11 Zileuton-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.

What are Zileuton impurity standards used for?

They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).

Can you synthesise a Zileuton impurity that is not listed?

Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.

Request Zileuton impurity standards

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