Impurity reference standards
Dopamine impurity standards
This page brings together 19 Dopamine related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 5 pharmacopoeial impurities, 2 isotope-labelled standards and 1 metabolite or hydroxylated analogue.
19reference materials
5pharmacopoeial
2isotope labelled
1metabolites
Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Pharmacopoeial5EP, USP, BP or JP named impurities
Isotope labelled2Deuterated, 13C or 15N internal standards
Metabolites1Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Dopamine reference materials
1–19 of 19 standards
Questions
Dopamine impurities, answered
What Dopamine reference materials are available?
The catalogue currently lists 19 compounds for Dopamine, including 5 pharmacopoeial impurities, 2 isotope-labelled standards and 1 metabolite or hydroxylated analogue. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Dopamine 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 Dopamine 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.
Are isotope-labelled Dopamine standards available?
Yes. 2 stable-isotope labelled compounds are listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.