Description

Spiro[4H-Cyclopenta-1,3-Dioxole-4,2-[1,3]Dioxolane], Tetrahydro-2,2-Dimethyl-, cis- (9Ci) is a specialized spirocyclic acetal compound, valued for its unique structural framework and reactivity. This chemical serves as a critical building block and protecting group intermediate in advanced organic synthesis, enabling the creation of complex molecular architectures. It is primarily sought after by R&D chemists and process development teams in the pharmaceutical, agrochemical, and fine chemical industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug candidates, particularly those requiring spirocyclic or acetal motifs for biological activity or metabolic stability.
• Agrochemical Synthesis: Serves as a key precursor in the development of new herbicides, fungicides, and insecticides with novel modes of action.
• Fine Chemical Production: Employed as a versatile building block for synthesizing specialty chemicals, flavors, fragrances, and advanced polymers.
• Academic & Industrial Research: A valuable reagent for methodological development in organic chemistry, including studies on cyclization reactions and protecting group strategies.
• Material Science: Potential use in the synthesis of monomers for specialty resins or as a modifier for polymer properties.

Basic Information

Product Name	Spiro[4H-Cyclopenta-1,3-Dioxole-4,2-[1,3]Dioxolane], Tetrahydro-2,2-Dimethyl-, cis- (9Ci)
CAS No.	39682-19-4
Molecular Formula	C8H12O4
Molecular Weight	172.18 g/mol
Synonyms	cis-2,2-Dimethyl-1,3-dioxolane-4-spiro-2'-(4',5'-dihydro-1',3'-dioxole); 2,2-Dimethyl-1,3-dioxolane-4-spiro-2'-(4',5'-dihydro-1',3'-dioxole); 2,2-Dimethyl-4-spiro-(4',5'-dihydro-1',3'-dioxole)-1,3-dioxolane; Spiro[1,3-dioxolane-4,2'-[4H]cyclopenta[1,3]dioxole], tetrahydro-2,2-dimethyl-, cis-; Tetrahydro-2,2-dimethyl-cis-spiro[4H-cyclopenta[1,3]dioxole-4,2'-[1,3]dioxolane]; (cis)-Tetrahydro-2,2-dimethylspiro[4H-cyclopenta[1,3]dioxole-4,2'-[1,3]dioxolane]; Spirocyclic acetal intermediate; 39682-19-4.
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Quality Control

Our production of Spiro[4H-Cyclopenta-1,3-Dioxole-4,2-[1,3]Dioxolane], Tetrahydro-2,2-Dimethyl-, cis- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. All materials undergo comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible materials such as oxidizing agents. The container should be kept tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5% w/w
Residue on Ignition	≤ 0.1%

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