Overview
Loganic acid is an iridoid glycoside predominantly extracted from plants such as Strychnos nux-vomica (strychnine tree) and Gentiana lutea (yellow gentian). It plays a pivotal role in the biosynthesis of secologanin, a precursor to terpenoid indole alkaloids like vinblastine and quinine. The compound is recognized for its potential therapeutic properties, including anti-inflammatory and hepatoprotective activities, making it a subject of interest in pharmaceutical research. In traditional medicine, loganic acid-rich extracts are used for their purported benefits in liver health and metabolic regulation. Industrially, it serves as a high-value intermediate for synthesizing complex alkaloids, with demand driven by drug discovery programs and herbal supplement formulations.
Physical and Chemical Properties
Loganic acid crystallizes as a white to off-white powder with a molecular weight of 376.36 g/mol. It decomposes at 185-190°C, and its solubility profile favors polar solvents like water, methanol, and ethanol. The compound’s stability is optimal under refrigerated (2-8°C), dark, and dry conditions, though it degrades upon prolonged exposure to heat or humidity. Structurally, it features a cyclopentanopyran skeleton typical of iridoids, with a carboxyl group enhancing its reactivity in biosynthetic pathways. Analytical methods such as HPLC and NMR are commonly employed to verify its purity and structural integrity in commercial batches.
Main Applications
The primary use of loganic acid lies in pharmaceutical research, where it acts as a biosynthetic precursor to secologanin—a critical building block for indole alkaloids with anticancer and antimalarial properties. It is also explored for its direct bioactivity, including modulation of inflammatory markers and liver enzyme regulation in preclinical studies. Traditional medicine systems utilize plant extracts containing loganic acid for detoxification and metabolic support. In the B2B sector, demand is concentrated among alkaloid manufacturers, academic research institutions, and nutraceutical companies seeking standardized botanical ingredients.
Safety and Storage
While loganic acid is generally low in toxicity, standard laboratory precautions (gloves, goggles) are recommended to avoid skin or eye irritation. Inhalation of fine particles should be minimized. Storage requires protection from moisture and light, ideally in amber glass containers under refrigeration (2-8°C) to prevent degradation. Material Safety Data Sheets (MSDS) should be consulted for handling protocols. Spills can be managed with absorbent materials and disposed of as organic waste, complying with local regulations.
B2B Procurement Guide
Buyers should prioritize suppliers offering certificates of analysis (CoA) detailing purity (≥98% by HPLC), residual solvents, and heavy metal content. Batch-to-batch consistency is critical for research reproducibility, making GMP-certified vendors preferable for pharmaceutical applications. Pricing varies by purity and scale, with bulk orders (100g+) often discounted. Sample testing is advised to confirm compliance with project specifications. Lead times may extend to 4-6 weeks for custom purifications or large quantities.
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