Description

(2R)-3,3Aβ,4,5-Tetrahydro-3β-Hydroxy-2,5,5-Trimethyl-2α,4α-Ethano-2H,9H-Dipyrano[4,3,2-De:3',2'-G][1]Benzopyran-9-One is a high-purity, complex organic compound characterized by its unique fused pyranobenzopyran structure. This compound is valued for its role as a key chiral intermediate and building block in advanced synthetic chemistry. It is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the multi-step synthesis of complex drug molecules, particularly in oncology and neurology research.
• Asymmetric Synthesis: Utilized as a building block in stereoselective reactions to construct molecules with specific three-dimensional configurations.
• Medicinal Chemistry Research: Employed in lead optimization and structure-activity relationship (SAR) studies to develop new therapeutic candidates.
• Fine Chemical Production: Used in the manufacture of specialty chemicals where its specific stereochemistry is essential for function.
• Reference Standard: Acts as an analytical standard for quality control and method development in laboratories.

Basic Information

Product Name	(2R)-3,3Aβ,4,5-Tetrahydro-3β-Hydroxy-2,5,5-Trimethyl-2α,4α-Ethano-2H,9H-Dipyrano[4,3,2-De:3',2'-G][1]Benzopyran-9-One
CAS No.	33044-74-5
Molecular Formula	C19H22O5
Molecular Weight	330.38 g/mol
Synonyms	33044-74-5; (2R)-3,3aβ,4,5-Tetrahydro-3β-hydroxy-2,5,5-trimethyl-2α,4α-ethano-2H,9H-dipyrano[4,3,2-de:3',2'-g][1]benzopyran-9-one; 2H,9H-Dipyrano[4,3,2-de:3',2'-g][1]benzopyran-9-one, 3,3aβ,4,5-tetrahydro-3β-hydroxy-2,5,5-trimethyl-2α,4α-ethano-, (2R)-; (2R)-3,3aβ,4,5-Tetrahydro-3β-hydroxy-2,5,5-trimethyl-2α,4α-ethano-2H,9H-dipyrano[4,3,2-de:3',2'-g]chromen-9-one; 9H-Dipyrano[4,3,2-de:3',2'-g]chromen-9-one, 3,3aβ,4,5-tetrahydro-3β-hydroxy-2,5,5-trimethyl-2α,4α-ethano-, (2R)-
EINECS	Contact for details

Quality Control

Our (2R)-3,3Aβ,4,5-Tetrahydro-3β-Hydroxy-2,5,5-Trimethyl-2α,4α-Ethano-2H,9H-Dipyrano[4,3,2-De:3',2'-G][1]Benzopyran-9-One is manufactured under strict quality management systems. Products undergo rigorous analytical testing to ensure high purity and chiral integrity, meeting the exacting standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each batch.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound should be handled in a well-ventilated area, and containers must be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Residual Solvents (GC)	Complies with ICH Q3C

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