Description

4-Carboxy-5,7-Dihydroxy-2-(4-Methoxyphenyl)-1-Benzopyrylium Chloride CAS NO 78776-54-2 is a high-purity, synthetic flavonoid-derived compound belonging to the benzopyrylium (flavylium) salt class. This specialized chemical serves as a critical intermediate and reference standard in advanced research and development. It is essential for industries focused on pharmaceutical synthesis, analytical chemistry, and the development of novel functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel therapeutic agents and bioactive flavonoid derivatives.
• Analytical Reference Standard: Used for method development, calibration, and quality control in HPLC and LC-MS analysis of natural products and synthetic compounds.
• Biochemical Research: Employed in studies of enzyme inhibition, antioxidant mechanisms, and cellular signaling pathways related to flavonoid activity.
• Dye and Pigment Precursor: Serves as a starting material for synthesizing specialized dyes and pigments due to its chromophoric benzopyrylium core.
• Material Science Research: Investigated for potential applications in organic electronics and photonic materials.

Basic Information

Item	Detail
Product Name	4-Carboxy-5,7-Dihydroxy-2-(4-Methoxyphenyl)-1-Benzopyrylium Chloride
CAS No.	78776-54-2
Molecular Formula	C17H13ClO6
Molecular Weight	348.74 g/mol
Synonyms	4-Carboxy-5,7-dihydroxy-2-(4-methoxyphenyl)benzopyrylium chloride; 2-(4-Methoxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromene-8-carboxylic acid chloride; Flavylium chloride derivative; 4-Oxo-2-(4-methoxyphenyl)-4H-chromene-5,7,8-tricarboxylic acid derivative; 8-Carboxyapigeninidin chloride; 5,7-Dihydroxy-2-(4-methoxyphenyl)-4-oxo-4H-chromene-8-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 4-Carboxy-5,7-Dihydroxy-2-(4-Methoxyphenyl)-1-Benzopyrylium Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. We provide comprehensive Certificates of Analysis (COA) with each shipment to ensure traceability and compliance with your research or production specifications.

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 in a desiccated environment. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residual Solvents (GC)	Meets ICH guidelines

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