(2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one
(2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one (CAS 42399-49-5) is a chiral heterocyclic compound with a molecular weight of 301.36 g/mol. It serves as a valuable building block in asymmetric synthesis and general chemical research. Its specific stereochemistry and functional groups make it suitable for constructing complex molecular architectures in various chemical development pathways.
- Synonyms
- 42399-49-5C16H15NO3S

Asymmetric Synthesis
This compound acts as a chiral building block, enabling the stereoselective synthesis of complex organic molecules. Its inherent chirality is critical for creating enantiomerically pure target compounds in pharmaceutical and fine chemical research.
Heterocyclic Chemistry
As a benzothiazepinone derivative, it is employed in studies involving heterocyclic chemistry. It can be used as a starting material or intermediate for the synthesis of novel heterocyclic systems with potential biological activities.
Organic Synthesis Research
Researchers utilise this molecule for its specific structural features in the development of new synthetic methodologies and the exploration of reaction mechanisms. It is a versatile reagent for various organic transformations.
| Molecular weight | 301.36 |
|---|---|
| Empirical formula | C16H15NO3S |
| Assay | 98% |
| Optical activity | [α]20/D +112°, c = 0.5 in methanol |
| Melting point | 203-206 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 (2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one used for?
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This compound is primarily used as a chiral building block in asymmetric synthesis and in general organic chemistry research, particularly for constructing complex heterocyclic molecules.
What are the CAS number and molecular formula for this chemical?
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The CAS number is 42399-49-5 and the molecular formula is C16H15NO3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade. It is suitable for research and chemical synthesis purposes.
How should (2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one be handled safely?
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This compound is classified as a Warning. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves, in a well-ventilated area.
Is this chemical subject to special export controls?
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The provided data does not indicate any special controlled or scheduled substance status. Tech Serve Solutions exports chemicals globally, adhering to all relevant international shipping regulations.
How can I request a sample or quote?
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Please contact our sales team via the website or by phone to request a sample or a quotation for (2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one.
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