Pharmaceutical Impurities
9,600+ listings, searchable A–Z by parent API.
Impurities
Characterized impurities and reference standards.
A searchable catalogue of pharmaceutical impurities by parent API, plus peptide impurities, nitrosamines, metabolites and reference standards — each supplied with a full certificate of analysis.
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By Type
Peptide Impurities
Deletion, truncation, oxidation and racemization variants.
Nitrosamine Impurities
NDSRIs and small nitrosamines for risk assessment.
Metabolites & Glucuronides
Phase I and II metabolites for bioanalysis.
Chiral Impurities
Enantiomers and diastereomers with chiral purity.
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Reference Standards
Working Standards
Traceable secondary standards for routine QC.
Certified Reference Materials
CRMs with certified values and uncertainty.
Stable-Isotope Standards
Deuterated and 13C-labeled internal standards.
Intermediates & Fine Chemicals
Process intermediates and starting materials.
Characterization Package
What's on every COA
Each impurity and reference standard ships with a certificate of analysis. Additional tests such as 2D NMR or chiral purity are available on request.
- Identity
- 1H NMR, 13C NMR, mass spectrometry, IR
- Chromatographic purity
- HPLC with chromatogram and integration report
- Water content
- Karl Fischer titration or TGA
- Residual solvents
- GC-headspace, where applicable
- Sulphated ash
- Where applicable
- Assay
- Titrimetry or mass balance, reported on an as-is basis
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