Description

(4As)-4,4A,5,6-Tetrahydro-6β-Methyl-1-Oxo-1H,3H-Pyrano[3,4-C]Pyran-5α-Carbaldehyde is a specialized heterocyclic aldehyde building block of significant interest in advanced organic synthesis. Its unique fused pyranopyran structure makes it a valuable precursor for constructing complex molecular architectures. This compound is primarily sought after by research institutions and pharmaceutical development companies for the synthesis of novel active pharmaceutical ingredients (APIs) and other fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block in the research and development of new therapeutic agents.
• Organic Synthesis: Used as a versatile precursor for synthesizing complex heterocyclic compounds and natural product analogs.
• Chemical Research: Employed in academic and industrial R&D for methodology development and exploring new chemical spaces.
• Agrochemical Development: Potential intermediate in the synthesis of novel crop protection agents and pesticides.
• Material Science: Investigated as a monomer or precursor for specialized polymers and advanced organic materials.

Basic Information

Product Name	(4As)-4,4A,5,6-Tetrahydro-6β-Methyl-1-Oxo-1H,3H-Pyrano[3,4-C]Pyran-5α-Carbaldehyde
CAS No.	38965-50-3
Molecular Formula	C11H12O4
Molecular Weight	208.21 g/mol
Synonyms	5α-Carbaldehyde-4,4a,5,6-tetrahydro-6β-methyl-1-oxo-1H,3H-pyrano[3,4-c]pyran; (4aS,5R,6R)-5-Formyl-6-methyl-4,4a,5,6-tetrahydro-1H,3H-pyrano[3,4-c]pyran-1-one; 6β-Methyl-1-oxo-1H,3H-pyrano[3,4-c]pyran-5α-carbaldehyde; CAS 38965-50-3; Pyranopyran carbaldehyde derivative; Fused pyran aldehyde building block.
EINECS	Contact for details

Quality Control

Every batch of (4As)-4,4A,5,6-Tetrahydro-6β-Methyl-1-Oxo-1H,3H-Pyrano[3,4-C]Pyran-5α-Carbaldehyde is produced and tested under strict quality management protocols to ensure high purity, consistency, and traceability. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and bases. For long-term storage, consider inert atmosphere conditions to preserve stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC, Area %)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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