4X Blend Methionine / Choline Chloride / Carnitine / Dexpanthenol

Contents 4X Blend (Lipotropic research combination) Form / storage Typically a sterile solution — store refrigerated (2–8 °C), protect from light. Lyophilized presentations: −20 °C. Purity Per-component assay — see lot COA Testing Per-component assay, heavy metals, microbial (TAMC/TYMC) COA Batch-specific — view on this page Research background The 4X Blend combines a sulfur-containing amino acid (methionine), two compounds tied to lipid and choline metabolism (choline chloride, carnitine), and dexpanthenol (a coenzyme-A precursor). Each constituent is well-characterized in metabolic biochemistry; the blend assembles them into a single research preparation. It is of interest for laboratory studies of lipid handling, fatty-acid transport (carnitine’s mitochondrial shuttle role), methyl-donor metabolism (methionine, choline), and coenzyme-A-dependent pathways. Intended strictly for in vitro and preclinical research. Research applications Cell models of lipid metabolism and fatty-acid transport Methyl-donor interactions in one-carbon-metabolism research Coenzyme-A and amino-acid cofactor studies Quality & documentation Every lot is tested by an independent third-party laboratory before it enters the catalog. Blends report a per-component quantitative assay (content vs. label claim) rather than a single purity figure, plus heavy-metal and microbial screening.