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VAQORACHEMICALS
Impurity reference standards

Quinidine impurities & reference standards

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

7reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
Reference Standard
Hydroquinidine chemical structure
Hydroquinidine
CAS
1435-55-8
Formula
C20H26N2O2
MW
326.4 g/mol
VQ-027706
Reference Standard
Quinidine N-Oxide chemical structure
Quinidine N-Oxide
CAS
70116-00-6
Formula
C20H24N2O3
MW
340.4 g/mol
VQ-033412
Reference Standard
Quinidine sulphate chemical structure
Quinidine sulphate
CAS
50-54-4
Formula
C40H50N4O8S
MW
746.9 g/mol
VQ-041801
Reference Standard
Quinidine-d3 chemical structure
Quinidine-d3
CAS
1267657-68-0
Formula
C20H24N2O2
MW
327.4 g/mol
VQ-041803
Reference Standard
Quininone chemical structure
Quininone
CAS
84-31-1
Formula
C20H22N2O2
MW
322.4 g/mol
VQ-027707

FAQs — Quinidine impurities

Which Quinidine impurities do you supply?

We list 7 Quinidine-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 Quinidine 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 Quinidine 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 Quinidine impurity standards

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