Description

3,7-Dibromo-5-Methoxy-2,2,8,8-Tetramethyl-2H,8H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester is a high-purity, synthetically valuable chromene derivative with a complex, functionalized molecular architecture. This compound serves as a critical advanced intermediate for research and development in specialized organic synthesis, particularly where precise bromination and methoxy substitution patterns are required. It is primarily sought by pharmaceutical R&D teams and fine chemical manufacturers for constructing novel molecular scaffolds with potential biological activity.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Organic Light-Emitting Diode (OLED) Materials Research: Used in the development of new electron-transport or host materials due to its chromene core and bromine substituents.
• Agrochemical Synthesis: Serves as a precursor for creating new active ingredients with specific photostability and bioactivity profiles.
• Dye and Pigment Chemistry: Acts as an intermediate for synthesizing specialized chromophores and functional dyes.
• Academic & Industrial Research: Employed in methodological studies and as a model compound in organic chemistry and materials science research.
• Ligand and Catalyst Development: The bromine atoms provide handles for further functionalization to create complex chelating ligands.

Basic Information

Item	Detail
Product Name	3,7-Dibromo-5-Methoxy-2,2,8,8-Tetramethyl-2H,8H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester
CAS No.	56336-17-5
Molecular Formula	C21H24Br2O5
Molecular Weight	516.22 g/mol
Synonyms	Methyl 3,7-dibromo-5-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo[1,2-b:5,4-b']dipyran-10-propanoate; 10-(Methoxycarbonylethyl)-3,7-dibromo-5-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo[1,2-b:5,4-b']dipyran; Chromene derivative CAS 56336-17-5; Dibromomethoxytetramethylbenzodipyran propanoate methyl ester
EINECS	Contact for details

Quality Control

Our 3,7-Dibromo-5-Methoxy-2,2,8,8-Tetramethyl-2H,8H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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