Description

1,7-Dioxaspiro[4.4]Nonan-8-One,4-Ethyl-3,4-Dihydroxy-,(3R,4S,5S)-(9Ci) is a high-purity, stereochemically defined spirocyclic compound, valued for its unique structural motif and functional groups. This compound serves as a sophisticated chiral building block and intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs), agrochemicals, and specialty fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new therapeutic agents, particularly in areas requiring complex stereochemistry.
• Agrochemical Synthesis: Used in the creation of advanced, biologically active molecules for crop protection and pest management solutions.
• Asymmetric Catalysis Ligand Precursor: Its dihydroxy and spirocyclic structure makes it a potential precursor for novel chiral ligands and organocatalysts.
• Fine Chemical & Flavor/Fragrance Intermediate: Employed in the synthesis of high-value specialty chemicals, including complex aroma compounds.
• Academic & Industrial R&D: A valuable tool for methodological development in organic chemistry and for exploring new chemical spaces in material science.

Basic Information

Product Name	1,7-Dioxaspiro[4.4]Nonan-8-One,4-Ethyl-3,4-Dihydroxy-,(3R,4S,5S)-(9Ci)
CAS No.	477772-15-9
Molecular Formula	C9H14O4
Molecular Weight	186.21 g/mol
Synonyms	(3R,4S,5S)-4-Ethyl-3,4-dihydroxy-1,7-dioxaspiro[4.4]nonan-8-one; 4-Ethyl-3,4-dihydroxy-1,7-dioxaspiro[4.4]nonan-8-one; (3R,4S,5S)-rel-4-Ethyl-3,4-dihydroxy-1,7-dioxaspiro[4.4]nonan-8-one; Spirocyclic dihydroxy ketone; 477772-15-9; (3R,4S,5S)-4-Ethyl-3,4-dihydroxy-1,7-dioxaspiro[4.4]nonane-8-one
EINECS	Contact for details

Quality Control

Our 1,7-Dioxaspiro[4.4]Nonan-8-One,4-Ethyl-3,4-Dihydroxy-,(3R,4S,5S)-(9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical characterization, including chiral purity verification, to meet the exacting standards of research and process chemistry. Certificates of Analysis (COA) detailing identity, purity, and stereochemical composition are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (3R,4S,5S)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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