Description

1,7-Dioxaspiro[5.5]Undecane-3,4-Diol, 9-Ethyl-, (3R,4S,6R,9S)- (9Ci) is a high-purity, stereochemically defined spirocyclic diol compound. This molecule serves as a versatile chiral building block and intermediate for the synthesis of complex organic molecules, offering precise control over three-dimensional structure. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and advanced materials sectors for developing new active ingredients and functional compounds.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in antiviral, anticancer, and neurological drug candidates.
• Agrochemical Synthesis: Used as a precursor in creating advanced, stereospecific pesticides, herbicides, and plant growth regulators with enhanced efficacy and selectivity.
• Asymmetric Catalysis: Employed as a ligand or precursor for chiral catalysts and auxiliaries in stereoselective organic synthesis.
• Advanced Material Research: Building block for synthesizing specialty polymers, liquid crystals, or organic electronic materials requiring specific spatial configurations.
• Flavor & Fragrance Chemistry: Intermediate for the production of complex, naturally-derived or novel synthetic aroma chemicals.
• Academic & Contract Research: Essential reagent for methodological studies in organic chemistry, total synthesis projects, and process development.

Basic Information

Product Name	1,7-Dioxaspiro[5.5]Undecane-3,4-Diol, 9-Ethyl-, (3R,4S,6R,9S)- (9Ci)
CAS No.	415921-40-3
Molecular Formula	C11H20O4
Molecular Weight	216.27 g/mol
Synonyms	(3R,4S,6R,9S)-9-Ethyl-1,7-dioxaspiro[5.5]undecane-3,4-diol; 9-Ethyl-1,7-dioxaspiro[5.5]undecane-3,4-diol, (3R,4S,6R,9S)-; (3R,4S,6R,9S)-9-Ethyl-1,7-dioxaspiro[5.5]undecane-3,4-diol (9CI); Spirocyclic diol derivative; Chiral spiroketal diol; Ethyl-substituted dioxaspiro undecane diol.
EINECS	Contact for details

Quality Control

Our 1,7-Dioxaspiro[5.5]Undecane-3,4-Diol, 9-Ethyl-, (3R,4S,6R,9S)- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for 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, and well-ventilated area at a controlled room temperature (15-25°C). The compound may be hygroscopic; keep the container tightly sealed to minimize exposure to 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
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.