Introducing Swizchem's Clinical Testing and Diagnostics Catalogue

Clinical Testing and Diagnostics - Chemistry at the Foundation of Every Reliable Result

Chemistry sits at the foundation of every clinical test, every cell-based assay, and every in vivo imaging experiment. The small organic molecules used in clinical testing and diagnostic research - fluorescent probes, photosensitisers, biomarker reference standards, assay reagents are not supporting materials. They are the tools through which biology becomes measurable, observable, and reproducible. Their quality, purity, and characterisation directly determine the reliability of every result built on them. Swizchem's new Clinical Testing and Diagnostics catalogue is designed to meet this need a dedicated collection of carefully selected organic compounds spanning the full range of chemical tools used in clinical, cell biology, and in vitro research programmes. Fluorescent Dyes and Imaging Probes. Fluorescence is the dominant detection modality in modern cell biology and diagnostic chemistry, and the quality of the fluorescent probe determines the quality of the signal. The catalogue covers a comprehensive set of coumarin fluorescent dyes — including Coumarin 7, 30, 47, 102, 120, 153, and 343 spanning the UV-to-green emission range and widely used in laser spectroscopy, fluorescence lifetime measurements, enzyme substrate tagging, and bioconjugation chemistry. Fluorescein, the most widely used fluorescent probe in biology is included as a reference standard for flow cytometry, vascular diagnostics, and fluorescence calibration. Eosin Y serves dual roles as a classical histological staining dye and as a photosensitiser in type II photodynamic reactions. Cresyl Violet Acetate is the Nissl stain of choice for neuronal cell body imaging and neurodegenerative disease research. Berberine Chloride provides natural fluorescence for nucleic acid and mitochondria staining. Anthracene and Umbelliferone complete the fluorescent probe set as photophysics reference standards and enzyme assay substrates respectively. Photosensitisers for PUVA and Photodynamic Therapy Research. The catalogue includes a dedicated set of furanocoumarin photosensitisers used in clinically relevant phototherapy research. Xanthotoxin (8-methoxypsoralen) is the most widely used clinical PUVA photosensitiser, approved for treatment of psoriasis, vitiligo, and mycosis fungoides. Bergapten (5-methoxypsoralen) and Psoralen are established reference standards for photobiology and dermatology research. Imperatorin completes the set as both a photosensitiser and calcium channel probe relevant to neurological research. Curcumin and Podophyllotoxin are also included, the former as a fluorescent amyloid probe and ROS scavenger, the latter as a topoisomerase II inhibitor and precursor to clinical anticancer drugs. Cell Viability and In Vitro Assay Reagents. The catalogue covers the core reagents used in cell-based research. MTT the gold-standard colorimetric cell viability reagent is included at research grade, reduced by mitochondrial dehydrogenases in living cells to produce the characteristic purple formazan product used across cytotoxicity screening and drug sensitivity assays worldwide. Resazurin sodium salt provides the fluorometric alternative to MTT, used in antimicrobial susceptibility testing and biofilm assays as well as mammalian cell viability work. p-Nitrophenyl phosphate is the standard chromogenic substrate for phosphatase enzyme activity assays and ELISA detection systems. D-Luciferin enables firefly luciferase bioluminescence assays for ATP detection, reporter gene studies, and in vivo imaging. Acridine Orange allows live/dead cell discrimination and apoptosis detection by differential staining of DNA and RNA. Lumigen APS-5 provides the chemiluminescent signal amplification needed for highly sensitive immunoassay detection. Biomarker Reference Standards. Accurate clinical diagnostics depend entirely on having authentic, well-characterised reference standards against which measurements are calibrated. The catalogue includes bilirubin the primary biomarker for liver function and haemolysis as well as creatinine for kidney function assessment, uric acid for gout and oxidative stress panels, and L-homocysteine as the key cardiovascular disease risk biomarker. The antioxidant carotenoids lutein and lycopene are provided as reference standards for serum carotenoid analysis and eye health diagnostics. L-Phenylalanine-¹³C9,¹⁵N completes the biomarker set as an isotopically labelled internal standard for PKU newborn screening by tandem mass spectrometry. Anticancer and Receptor Binding Research Standards. The catalogue includes a targeted set of compounds used as reference standards and positive controls in in vitro cancer and pharmacology research. Camptothecine and its hydroxy analogue are topoisomerase I inhibitors widely used as positive controls in apoptosis and cytotoxicity assays. Imatinib and Gemcitabine serve as oncology drug reference standards for TDM and in vitro pharmacology studies. Silymarin provides a hepatoprotection assay reference, and Strychnine is included as a glycine receptor antagonist for receptor binding and ion channel research. All compounds in the catalogue are CAS indexed, HPLC verified, and supplied with a Certificate of Analysis. Global shipping is available. For diagnostic compounds, fluorescent probes, or assay reagents not currently listed, Swizchem's custom synthesis service can build to exact specifications.

Reliable clinical testing and diagnostic research starts with reliable chemistry. Swizchem's Clinical Testing and Diagnostics catalogue brings together the fluorescent probes, photosensitisers, assay reagents, and biomarker reference standards that research programmes depend on all analytically verified, globally shipped, and backed by custom synthesis capability for compounds outside the standard range. Browse the full catalogue at swizchem.com/products or contact us to discuss your specific requirements.