Astringin 98% Purity Stilbene Glycoside Standard CAS 29884-49-9 Research Grade Reference Standard

• • • • • • Product Overview

            Astringin is a naturally occurring stilbene glycoside found in various plants, including the bark of Picea species and certain medicinal plants. It is the glucoside of piceatannol and serves as an important reference standard for the quality control of stilbene-containing products.

            With the molecular formula C₂₀H₂₂O₉ and a molecular weight of 406.38 g/mol, this compound appears as an off-white to pale yellow powder. It is soluble in methanol, ethanol, and DMSO. The product is supplied at ≥98% purity as determined by HPLC analysis.

            Synthetic Process

            Astringin is obtained through isolation from plant sources:

            1. Extraction: Plant material is extracted with aqueous alcohol.

            2. Chromatographic Separation: The extract is fractionated using column chromatography.

            3. Purification: Preparative HPLC yields the pure compound.

            4. Identity Confirmation: Structure is confirmed by NMR and mass spectrometry.

            Mechanism of Action & Applications

            This compound is primarily used as:

            • Reference Standard: For the quantification of stilbene glycosides in plant extracts.

            • Quality Control: Used in the quality assessment of herbal products.

            • Natural Product Chemistry: Serves as a reference for glycoside identification.

            Quality Specifications

            • Purity: ≥98.0% determined by HPLC.

            • Identity: Confirmed by NMR and mass spectrometry.

            • Loss on Drying: ≤1.0%.

            • Each batch is accompanied by a comprehensive COA.

            • Stable for 24 months when stored at 2-8°C in sealed containers, protected from light.

            Packaging & Storage

            • Standard packaging: 2mg, 5mg, 10mg amber glass vials.

            • Store at 2-8°C, protected from light and moisture.

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Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

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Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.