Description

(7R,9R)-7,9-Methano-3,8,8-Trimethyl-4A,5,8,9-Tetrahydro-1H,7H-Pyrano[4,3-B]Benzopyran-1-One is a high-purity, complex heterocyclic compound with a unique fused ring structure. This compound is valued as a critical synthetic intermediate and a versatile scaffold for advanced chemical synthesis. It is primarily needed by pharmaceutical R&D and fine chemical manufacturers for developing novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Organic Synthesis Scaffold: Used as a versatile core structure for constructing complex molecules in academic and industrial research laboratories.
• Agrochemical Research: Acts as a precursor in the development of new active ingredients for crop protection products.
• Material Science: Investigated for the creation of specialty polymers or advanced organic materials with specific optical or electronic properties.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in related chemical processes.

Basic Information

Item	Details
Product Name	(7R,9R)-7,9-Methano-3,8,8-Trimethyl-4A,5,8,9-Tetrahydro-1H,7H-Pyrano[4,3-B]Benzopyran-1-One
CAS No.	863566-91-0
Molecular Formula	C₁₇H₂₀O₃
Molecular Weight	272.34 g/mol
Synonyms	7,9-Methano-3,8,8-trimethyl-4a,5,8,9-tetrahydro-1H,7H-pyrano[4,3-b]benzopyran-1-one; (7R,9R)-rel-7,9-Methano-3,8,8-trimethyl-4a,5,8,9-tetrahydro-1H,7H-pyrano[4,3-b][1]benzopyran-1-one; Pyranobenzopyran-1-one derivative; Fused tetracyclic pyran derivative; CAS 863566-91-0
EINECS	Contact for details

Quality Control

Our (7R,9R)-7,9-Methano-3,8,8-Trimethyl-4A,5,8,9-Tetrahydro-1H,7H-Pyrano[4,3-B]Benzopyran-1-One is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (NMR, IR, MS), to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

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). This product is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

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)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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