(4S,5S)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol
(4S,5S)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol (CAS 50622-09-8) is a chiral building block with the molecular formula C7H14O4 and a molecular weight of 162.18 g/mol. This compound, featuring two primary alcohol functionalities protected as an isopropylidene ketal, is valuable in organic synthesis. It is commonly employed in asymmetric synthesis and serves as a versatile intermediate for the construction of complex molecules.
- IUPAC
- (+)-2,3-O-Isopropylidene-L-threitol,(4S,5S)-4,5-Bis(hydroxymethyl)-2,2-dimethyl-1,3-dioxolane
- Synonyms
- 3-dioxolane-4,5-dimethanolC7H14O4(+)-2,3-O-Isopropylidene-L-threitol(4S,5S)-4,5-Bis(hydroxymethyl)-2,2-dimethyl-1,3-dioxolane

Chiral Synthesis
Serves as a key chiral building block in stereoselective synthesis, enabling the creation of enantiomerically pure target molecules. Its defined stereochemistry is critical for pharmaceutical and agrochemical research.
Organic Synthesis Intermediate
Utilised as an intermediate in multi-step organic syntheses. The diol functionality, once deprotected, can be further functionalised for diverse chemical transformations.
Asymmetric Synthesis
A valuable reagent in asymmetric synthesis, particularly for the introduction of specific stereocentres into organic molecules. Its structure facilitates stereocontrolled reactions.
| Molecular weight | 162.18 |
|---|---|
| Empirical formula | C7H14O4 |
| Assay | ≥97.0% (sum of enantiomers, GC) |
| Boiling point | 92-94 °C/0.1 mmHg(lit.) |
| Optical activity | [α]20/D +3.0±0.5°, c = 5% in ethanol |
| Melting point | 46-50 °C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (4S,5S)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol used for?
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This compound is primarily used as a chiral building block and intermediate in organic synthesis, particularly in asymmetric synthesis for creating complex stereodefined molecules.
What is the CAS number and formula for this chemical?
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The CAS number is 50622-09-8, and the empirical formula is C7H14O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of ≥97.0% (sum of enantiomers, GC). This is a technical/research grade material; TSS does not represent it as USP/BP/EP or any other pharmacopoeia grade.
What are the safety and handling precautions for (4S,5S)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol?
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This compound is classified under WGK Germany 3. Recommended personal protective equipment includes eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is advised for respiratory protection.
How is this product packed, shipped, and exported?
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Tech Serve Solutions, as a global supplier and exporter, ensures appropriate packaging for safe transport and handles all necessary export documentation for international shipments.
How can I request a sample or a quote for (4S,5S)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol?
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Please contact our sales team via the website or direct inquiry to request a sample or a quotation for this product.
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