Description

Erysenegalensein E is a specialized, high-purity chemical compound identified by CAS NO 154992-17-3, valued for its role as a key intermediate and reference standard in advanced research and development. Its significance lies in enabling precise chemical synthesis and analytical studies within the pharmaceutical and life sciences sectors. This product is essential for research institutions, pharmaceutical developers, and fine chemical manufacturers focused on novel compound discovery and quality control.

Application

• Pharmaceutical Research & Development: Serves as a critical intermediate in the synthesis of novel active pharmaceutical ingredients (APIs) and complex organic molecules.
• Reference Standard for Analytical Chemistry: Used as a high-purity standard for method development, validation, and quality control in HPLC, LC-MS, and other chromatographic analyses.
• Biochemical Studies: Employed in academic and industrial research to study biological activity, structure-activity relationships (SAR), and metabolic pathways.
• Fine Chemical Synthesis: Acts as a building block for the production of specialized chemicals, including dyes, pigments, and advanced materials.
• Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects requiring high-purity intermediates.

Basic Information

Product Name	Erysenegalensein E
CAS No.	154992-17-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Erysenegalensein E; 154992-17-3; Erysenegalensin E; (2R,3R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-one; 3,4-Dihydro-3,5,7-trihydroxy-2-(3,4-dihydroxyphenyl)-4-oxo-2H-1-benzopyran-2-carboxylic acid; Flavonoid derivative ERY-E
EINECS	Contact for details

Quality Control

Our Erysenegalensein E is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification by spectroscopic methods (IR, NMR) and purity determination by HPLC. A Certificate of Analysis (COA) detailing all test results and specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.