(S)-(+)-4,4a,5,6,7,8-Hexahydro-4a-methyl-2(3H)-naphthalenone
(S)-(+)-4,4a,5,6,7,8-Hexahydro-4a-methyl-2(3H)-naphthalenone (CAS 4087-39-2) is a chiral ketone with the molecular formula C11H16O. This compound serves as a valuable building block in asymmetric synthesis and organic chemistry. Its specific stereochemistry makes it a useful intermediate for the construction of complex molecules where precise spatial arrangement is critical. Available from TSS, it is supplied for research and chemical synthesis purposes.
- IUPAC
- (S)-(+)-10-Methyl-1(9)-octal-2-one,(S)-(+)-4a-Methyl-2,3,4,4a,5,6,7,8-octahydro-2-naphthalenone
- Synonyms
- 6,7,8-Hexahydro-4a-methyl-2(3H)-naphthalenone(S)-(+)-10-Methyl-1(9)-octal-2-one(S)-(+)-4a-Methyl-2,3,4,4a,5,6,7,8-octahydro-2-naphthalenone

Asymmetric Synthesis
This chiral ketone is employed as a key intermediate in asymmetric synthesis, enabling the stereoselective construction of complex organic molecules. Its defined stereochemistry is crucial for creating enantiomerically pure target compounds in pharmaceutical and fine chemical research.
Chiral Building Block
As a chiral building block, (S)-(+)-4,4a,5,6,7,8-Hexahydro-4a-methyl-2(3H)-naphthalenone provides a stereodefined starting point for synthetic pathways. It is utilised in multi-step syntheses where the introduction or preservation of chirality is essential.
Organic Synthesis Intermediate
This naphthalenone derivative functions as a versatile intermediate in general organic synthesis. Researchers leverage its ketone functionality and specific chiral structure for various transformations and the development of novel chemical entities.
| Molecular weight | 164.24 |
|---|---|
| Empirical formula | C11H16O |
| Assay | ≥97.0% (sum of enantiomers, GC) |
| Density | 1.018 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.525 |
| Optical activity | [α]20/D +210±10°, neat |
| Storage temperature | 2-8°C |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 113 °C / 235.4 °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)-(+)-4,4a,5,6,7,8-Hexahydro-4a-methyl-2(3H)-naphthalenone used for?
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It is primarily used as a chiral building block and intermediate in asymmetric synthesis and general organic chemical synthesis.
What are the CAS number and molecular formula?
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The CAS number is 4087-39-2 and the molecular formula is C11H16O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of ≥97.0% (sum of enantiomers, GC). This is a research or technical grade material and is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the main safety considerations when handling this chemical?
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When handling, it is important to use personal protective equipment such as eyeshields and gloves. The compound has a flash point of 113 °C (235.4 °F) and is classified with WGK Germany 3.
How is this chemical packed and shipped?
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This chemical is typically stored at 2-8°C. TSS, as a specialist global supplier and exporter, ensures appropriate packaging and shipping methods are employed for safe international distribution.
How can I request a sample or quote?
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You can request a sample or obtain a quote by contacting the Tech Serve Solutions sales team through the website or by direct enquiry, providing the product name or CAS number.
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