Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate
Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate (CAS 78715-83-0) is a chiral heterocyclic compound with the molecular formula C11H11NO3 and a molecular weight of 205.21 g/mol. Utilised as a valuable building block in asymmetric synthesis, this oxazole derivative offers specific stereochemical control in complex chemical transformations. Its applications span organic synthesis and the development of novel chemical entities.
- Synonyms
- C11H11NO3Methyl (S)-(+)-2-phenyl-4,5-dihydrooxazole-4-carboxylate

Chiral Building Block in Asymmetric Synthesis
This compound serves as a key chiral synthon for introducing stereospecificity in organic reactions. Its oxazole core and phenyl substituent enable diverse synthetic manipulations for creating enantiomerically enriched molecules.
Heterocyclic Chemistry Intermediate
As an oxazole derivative, it is employed in the synthesis of more complex heterocyclic systems. These structures are often found in pharmaceuticals and advanced materials, making this intermediate valuable for research and development.
Reagent for Stereoselective Transformations
The inherent chirality of Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate makes it a useful reagent for controlling stereochemistry in various synthetic pathways, particularly in the creation of biologically active compounds.
| Molecular weight | 205.21 |
|---|---|
| Empirical formula | C11H11NO3 |
| Assay | 96% |
| Boiling point | 131-132 °C/2 mmHg(lit.) |
| Density | 1.2 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.55(lit.) |
| Optical activity | [α]20/D +118°, c = 1 in ethanol |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| 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 Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate used for?
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This compound is primarily used as a chiral building block in asymmetric synthesis and as an intermediate in heterocyclic chemistry for the development of novel chemical entities and enantiomerically enriched molecules.
What is the CAS number and formula for this product?
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The CAS number is 78715-83-0, and the empirical formula is C11H11NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate with an assay of 96%. This product is not supplied as USP, BP, or EP grade.
How should Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate be handled?
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This compound is classified as a Warning with hazards H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be used. Ensure adequate ventilation and avoid breathing dust/fume/gas/mist/vapours/spray.
Is this chemical a controlled substance?
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The provided data does not indicate that Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions exports chemicals globally. Specific packing details are available upon request, adhering to international shipping regulations for chemical substances.
How can I request a sample or a quote?
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To request a sample or a quote for Methyl (S)-(+)-4,5-dihydro-2-phenyl-4-oxazolecarboxylate, please contact our sales department via the website or direct inquiry form, providing your specific requirements.
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