Overview
Cucurbitacin B is a naturally occurring triterpenoid found in plants of the Cucurbitaceae family, such as cucumbers, gourds, and melons. It is known for its intensely bitter taste and has been studied extensively for its pharmacological properties. Historically, it has been used in traditional medicine for its anti-inflammatory and hepatoprotective effects. In modern research, Cucurbitacin B has gained attention for its potential anti-cancer properties, particularly in inhibiting tumor growth and inducing apoptosis in cancer cells. Its mechanism of action involves disrupting cellular signaling pathways, making it a promising candidate for drug development.
Physical and Chemical Properties
Cucurbitacin B is a white to off-white crystalline powder with a molecular weight of 558.71 g/mol. It has a melting point of approximately 220-222°C and is soluble in organic solvents like ethanol, methanol, and DMSO, but only slightly soluble in water. Its bitter taste is a distinguishing feature, often acting as a natural defense mechanism in plants. The compound is chemically stable under recommended storage conditions but may degrade when exposed to light or high temperatures. Its molecular structure includes multiple hydroxyl and carbonyl groups, contributing to its biological activity and solubility characteristics.
Main Applications
Cucurbitacin B is primarily used in pharmaceutical research, particularly in studies targeting cancer therapy. Its ability to inhibit cancer cell proliferation and induce apoptosis has made it a subject of interest in oncology. Additionally, it is explored for its anti-inflammatory and hepatoprotective effects, which could lead to treatments for liver diseases and chronic inflammation. Beyond medicine, Cucurbitacin B is sometimes used in agricultural research to study plant defense mechanisms. Its bitter taste deters herbivores, making it a potential natural pesticide. However, its toxicity limits widespread use in this area.
Safety and Storage
Cucurbitacin B is toxic in high doses and should be handled with care. Proper personal protective equipment, such as gloves and goggles, is recommended when working with the compound. Ingestion or inhalation can lead to severe health effects, including gastrointestinal distress and organ damage. For storage, Cucurbitacin B should be kept in a cool, dry place away from light, ideally at 2-8°C. Containers should be tightly sealed to prevent moisture absorption and contamination. Long-term storage may require inert gas purging to maintain stability.
B2B Procurement Guide
When procuring Cucurbitacin B, B2B buyers should prioritize purity (typically ≥98%) and supplier reliability. Certificates of Analysis (CoA) should be requested to verify quality and composition. Due to its high cost, buyers may consider bulk purchases or long-term contracts to secure better pricing. Regulatory compliance is critical, especially for pharmaceutical applications. Ensure the supplier adheres to Good Manufacturing Practices (GMP) and can provide documentation for international standards. Shipping conditions should also be confirmed to prevent degradation during transit.
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