(R)-(+)-Styrene oxide
(R)-(+)-Styrene oxide (CAS 20780-53-4), molecular formula C8H8O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- (R)-(+)-Phenyloxirane,(R)-Phenylethylene oxide

| Molecular weight | 120.15 |
|---|---|
| Empirical formula | C8H8O |
| Assay | 98% |
| Boiling point | 89-90 °C/23 mmHg(lit.) |
| Density | 1.051 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.534(lit.) |
| Optical activity | [α]18/D +33°, neat |
| Optical purity | ee: 95% (HPLC) |
| Autoignition temp | 928 °F |
| Storage temperature | 2-8°C |
| Application | Used to produce a homologated epoxide as part of a synthetic approach to (+)-allosedamine.1 |


Hazard statements
- H312Harmful in contact with skin
- H319Causes serious eye irritation
- H350May cause cancer
Precautionary statements
- P201Obtain special instructions before use
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P308IF exposed or concerned
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 80 °C / 176 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 45-21-36 |
| Safety statements (S) | 53-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 (R)-(+)-Styrene oxide?
+
(R)-(+)-Styrene oxide (CAS 20780-53-4), molecular formula C8H8O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of (R)-(+)-Styrene oxide does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (R)-(+)-Styrene oxide in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of (R)-(+)-Styrene oxide?
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(R)-(+)-Styrene oxide has CAS number 20780-53-4 and molecular formula C8H8O. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for (R)-(+)-Styrene oxide?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of (R)-(+)-Styrene oxide ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should (R)-(+)-Styrene oxide be stored?
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Store (R)-(+)-Styrene oxide in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is (R)-(+)-Styrene oxide used for?
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(R)-(+)-Styrene oxide is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for (R)-(+)-Styrene oxide?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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