(S)-(−)-1,2-Epithiooctane
(S)-(−)-1,2-Epithiooctane (CAS: 244221-84-9), with the molecular formula C8H16S and a molecular weight of 144.28 g/mol, is a chiral thioepoxide. This compound serves as a valuable building block in organic synthesis, particularly in asymmetric synthesis. Its unique structure allows for specific stereochemical outcomes in various chemical transformations, making it a useful reagent for creating complex chiral molecules.
- IUPAC
- (S)-(−)-Hexylthiirane
- Synonyms
- (S)-(−)-Hexylthiirane

Asymmetric Synthesis
Utilised as a chiral building block, (S)-(−)-1,2-Epithiooctane enables the stereoselective synthesis of complex organic molecules. Its epoxide functionality can participate in ring-opening reactions with controlled stereochemistry.
Chiral Intermediate
This enantiomerically pure compound acts as a key intermediate in the preparation of chiral pharmaceuticals and fine chemicals, where precise stereochemical control is paramount.
Organic Synthesis Reagent
Employed in diverse organic transformations, this thioepoxide offers a reactive sulfur-containing moiety for constructing specific molecular architectures.
| Molecular weight | 144.28 |
|---|---|
| Empirical formula | C8H16S |
| Assay | 90% |
| Boiling point | 83 °C/5 mmHg(lit.) |
| Density | 0.88 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.47(lit.) |
| Optical activity | [α]25/D −66°, neat |
| Flash point | 79 °C / 175 °F |
|---|---|
| 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 (S)-(−)-1,2-Epithiooctane used for?
+
(S)-(−)-1,2-Epithiooctane is primarily used as a chiral building block in asymmetric synthesis and as an intermediate in the preparation of fine chemicals and pharmaceuticals.
What is the CAS number and chemical formula for (S)-(−)-1,2-Epithiooctane?
+
The CAS number for (S)-(−)-1,2-Epithiooctane is 244221-84-9, and its empirical formula is C8H16S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies (S)-(−)-1,2-Epithiooctane with an assay of 90%. This product is not guaranteed to be USP, BP, EP, or any other pharmacopoeia grade and is intended for research or technical use.
What are the safety considerations for handling (S)-(−)-1,2-Epithiooctane?
+
(S)-(−)-1,2-Epithiooctane is a combustible liquid with a flash point of 79°C (175°F). It is classified under WGK 3 in Germany, indicating a high hazard to water. Handle with appropriate personal protective equipment in a well-ventilated area, away from ignition sources.
How is (S)-(−)-1,2-Epithiooctane packed and shipped?
+
As a global supplier and exporter, Tech Serve Solutions ensures (S)-(−)-1,2-Epithiooctane is packed and shipped in compliance with all relevant international regulations for hazardous materials.
How can I request a sample or quote for (S)-(−)-1,2-Epithiooctane?
+
To request a sample or a quotation for (S)-(−)-1,2-Epithiooctane, please contact our sales team through the website or by calling us directly.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis