Description

3,4,7,8-Tetrahydro-5-Methoxy-2,2,8,8-Tetramethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester is a high-purity synthetic intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a key building block in the development of complex molecules, particularly in the pharmaceutical and fine chemical sectors. It is needed by R&D chemists and process development scientists working on novel active pharmaceutical ingredients (APIs), fragrances, and specialty materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the multi-step synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Serves as a specialized building block for constructing complex organic frameworks in research and development.
• Fragrance & Flavor Chemistry: Used in the synthesis of sophisticated aroma chemicals due to its complex bicyclic structure.
• Material Science Research: Investigated as a monomer or additive for developing polymers with specific optical or electronic properties.
• Agrochemical Development: Potential intermediate in the synthesis of new crop protection agents and pesticides.
• Academic & Industrial R&D: Employed in methodological studies and as a reference standard in chemical research.

Basic Information

Product Name	3,4,7,8-Tetrahydro-5-Methoxy-2,2,8,8-Tetramethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester
CAS No.	26535-39-7
Molecular Formula	C21H28O5
Molecular Weight	360.45 g/mol
Synonyms	Methyl 3-(3,4,7,8-tetrahydro-5-methoxy-2,2,8,8-tetramethyl-2H,6H-benzo[1,2-b:5,4-b']dipyran-10-yl)propanoate; 10-(2-Methoxy-2-oxoethyl)-5-methoxy-2,2,8,8-tetramethyl-3,4,7,8-tetrahydro-2H,6H-benzo[1,2-b:5,4-b']dipyran; 3,4,7,8-Tetrahydro-5-methoxy-2,2,8,8-tetramethyl-2H,6H-benzo[1,2-b:5,4-b']dipyran-10-propanoic acid methyl ester; 26535-39-7; Benzo[1,2-b:5,4-b']dipyran-10-propanoic acid derivative.
EINECS	Contact for details

Quality Control

Our 3,4,7,8-Tetrahydro-5-Methoxy-2,2,8,8-Tetramethyl-2H,6H-Benzo[1,2-B:5,4-B']Dipyran-10-Propanoic Acid Methyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) are provided and available upon request, detailing all relevant specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Loss on Drying	≤ 0.5%

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