Description

3,3'-Methylenebis(6-Ethyl-4-Hydroxy-5-Methyl-2H-Pyran-2-One) is a specialized organic compound belonging to the class of bis-coumarin derivatives, valued for its role as a key intermediate and functional additive. This chemical matters for its ability to impart specific properties in advanced material synthesis and performance formulations. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop products with enhanced stability or specific biological activity.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a coumarin-based structural framework.
• Agrochemical Synthesis: Serves as a precursor or additive in the production of certain herbicides, fungicides, and plant growth regulators.
• Polymer Stabilizer: Acts as a light stabilizer or antioxidant additive in specialty plastics and coatings to prevent degradation.
• UV Absorber: Utilized in formulations for sunscreens or materials requiring protection from ultraviolet radiation due to its aromatic structure.
• Research & Development: Employed in organic chemistry research for constructing complex molecular architectures and studying reaction mechanisms.
• Dye & Pigment Intermediate: Functions as a building block in the synthesis of certain optical brighteners or fluorescent dyes.

Basic Information

Product Name	3,3'-Methylenebis(6-Ethyl-4-Hydroxy-5-Methyl-2H-Pyran-2-One)
CAS No.	29902-01-0
Molecular Formula	C21H24O6
Molecular Weight	372.41 g/mol
Synonyms	3,3'-Methylenebis(6-ethyl-4-hydroxy-5-methyl-2H-pyran-2-one); Bis(6-ethyl-4-hydroxy-5-methyl-2-oxo-2H-pyran-3-yl)methane; 3,3'-Methylenedi(6-ethyl-4-hydroxy-5-methyl-2H-pyran-2-one); 6-Ethyl-4-hydroxy-5-methyl-2-oxo-2H-pyran-3-carboxylic acid methylene ester; Methylene bis(6-ethyl-4-hydroxy-5-methylcoumalin); Coumarin derivative 29902-01-0.
EINECS	Contact for details

Quality Control

Our 3,3'-Methylenebis(6-Ethyl-4-Hydroxy-5-Methyl-2H-Pyran-2-One) is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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