Overview
Osthole Reference Standard is a purified form of osthole, a coumarin derivative naturally found in plants like Cnidium monnieri (L.) Cusson. It is widely used in analytical laboratories and pharmaceutical industries as a quality control tool to ensure the consistency and potency of herbal extracts and formulations. The compound is recognized for its bioactive properties, including potential anti-inflammatory, antimicrobial, and bone health benefits. As a reference standard, it must meet stringent purity criteria (typically ≥98%) to ensure accurate results in chromatographic analyses such as HPLC and TLC.
Physical and Chemical Properties
Osthole appears as a white to off-white crystalline powder with a melting point range of 83–85°C. Its molecular structure includes a methoxy group and a prenyl side chain, contributing to its lipophilic nature. The compound exhibits strong UV absorption, making it suitable for detection in analytical methods. Solubility is a critical factor for laboratory use. Osthole dissolves readily in organic solvents like ethanol, methanol, and dimethyl sulfoxide (DMSO) but has limited solubility in water. This property dictates its preparation for assays and necessitates proper solvent selection during experiments.
Main Applications
The primary use of osthole reference standard is in quality assurance for herbal medicines, particularly those containing Cnidium monnieri extracts. Laboratories employ it to calibrate equipment, validate methods, and quantify osthole content in raw materials or finished products. Beyond QC, osthole is studied for its pharmacological effects, such as modulating bone formation and inhibiting inflammation. Research institutions procure the standard to investigate its mechanisms of action or develop derivative compounds for therapeutic applications.
Safety and Storage
While osthole is not classified as highly hazardous, standard laboratory precautions apply. Gloves and safety goggles should be worn to prevent skin or eye contact. Avoid generating dust during handling to minimize inhalation risks. Proper storage is essential to maintain stability. The compound should be kept in a cool (2–8°C), dry environment, away from light and oxidizing agents. Sealed amber vials are recommended for long-term preservation. Always check for degradation (e.g., discoloration) before use.
B2B Procurement Guide
When sourcing osthole reference standards, prioritize suppliers with ISO certification or GMP compliance. Key documentation includes a Certificate of Analysis (COA) detailing purity (e.g., HPLC-verified ≥98%), batch number, and expiration date. Bulk buyers should inquire about customization options, such as larger quantities or tailored purity grades. Compare lead times and logistics, as some suppliers specialize in express delivery for research deadlines. Pricing varies by purity and volume; negotiate for tiered discounts on repeat orders.
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