Natural Products, Vitamins & Phytochemicals

Natural products remain a major source of bioactive chemistry, and many are studied as nutraceuticals, analytical markers and drug leads. This sub-category lists purified phytochemicals, vitamins and related compounds. Examples include (L)-Tetrahydropalmatine ≥98%, 1-Deoxynojirimycin ≥95% from mulberry, (4S)-4-Hydroxy-L-isoleucine from fenugreek, (±)-L-Alliin from garlic and 3,4,5-Trihydroxybenzoic acid (gallic acid) at ≥99% by HPLC.

Purity and identity are the two big questions, because extracts can contain closely related compounds that co-elute in simple tests. Check HPLC purity and, for chiral natural products, the stated stereochemistry. If the compound will serve as a quantitative marker in herbal analysis, ask whether a higher purity or an assigned content value is available.

Products are supplied in milligram and gram packs, protected from light and moisture. Many polyphenols oxidise in air, so store them cold and sealed. Each lot comes with a COA showing purity and identification method.