Every reference compound shipped by MarkHerb comes with a comprehensive Certificate of Analysis (CoA), including HPLC/GC purity chromatograms (>98% verified purity standard), 1D/2D NMR spectra for structural verification, Mass Spectrometry (MS) data, and a Material Safety Data Sheet (MSDS).

Yes. Our contract research and isolation team accepts client-supplied raw botanical biomass. We perform targeted solvent extraction, preparative chromatographic isolation, and complete spectroscopic characterization (1D/2D NMR, MS, UV-Vis) to resolve and quantify target compounds.

We offer high-capacity chromatography-grade silica gel in standard particle size ranges (e.g., 40–63 µm for Flash chromatography, 60–200 µm for gravity columns) with uniform pore diameters (60 Å and 100 Å), ensuring optimal sample loading capacity, fast flow rates, and high resolution.

For reference standards, orders start from milligram (mg) to gram (g) quantities. For bulk natural ingredients and chromatography silica, MOQs scale from 1 kg sample batches up to multi-ton commercial quantities. Analytical services have no minimum sample requirement.

Temperature-sensitive and labile compounds are packed under inert gas (Nitrogen/Argon) atmospheres, vacuum-sealed, and shipped with cold-chain packaging (dry ice/ice packs) alongside humidity-controlled monitoring to guarantee stability upon arrival.

Yes. Our analytical laboratory operates in compliance with ISO/IEC 17025 standards, and our commercial supply manufacturing partners adhere strictly to ISO 9001 quality systems and GMP regulations.