L-Carnitine Base is L-Carnitine in its free-base form, supplied as a white crystalline material with an assay range of 98.0%–102.0%. The current page refers specifically to L-Carnitine Base rather than L-Carnitine Tartrate, so product titles, COAs, labels, and formulation documents should preserve that distinction.
For formulation work, several selection factors matter: water content must be no more than 4.0%, the pH range is 5.5–9.5%, and specific rotation falls between -29.0° and -32.0°. The density profile matters as well. Bulk density is specified at 0.4–0.7 g/mL, while tapped density is 0.5–0.8 g/mL; these values can affect powder handling, filling volume, and blend consistency. Before production, the final COA should confirm the active form, assay, density, and impurity limits.
