S(-)STYRENE OXIDE [(S)-2-Phenyloxirane], extra pure >98%
- CAS
- 20780-54-5
- Formula
- C8H8O
- MW
- 120.15 g/mol
ZX-019175
API Process Intermediates & Related Compounds
(S)-Styrene oxide
Available on request
(S)-Styrene oxide (CAS 20780-54-5) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-038979.
CAS number20780-54-5
FormulaC8H8O
Molar mass120.15 g/mol
Physical formSolid
InChIKeyAWMVMTVKBNGEAK-MRVPVSSYSA-N
IUPAC name(2S)-2-phenyloxirane
About (S)-Styrene oxide
(S)-Styrene oxide sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Key data: CAS 20780-54-5, formula C8H8O and molar mass 120.15 g/mol. It is handled as a solid.
Where it is used
- API route development
- Impurity fate & purge studies
- Analytical method development
Storage and safety notes
It carries the GHS signal word Danger (H311, H315, H319 and H331), so wear gloves and eye protection and work with good ventilation.
Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.
Reference standards for Colestyramine
See every impurity, metabolite and related compound we list for this API.
Colestyramine standardsTypical uses
- API route development
- Impurity fate & purge studies
- Analytical method development
Applications
Specifications and identifiers
| Product name | (S)-Styrene oxide |
|---|---|
| Catalogue number | ZX-038979 |
| CAS number | 20780-54-5 |
| IUPAC name | (2S)-2-phenyloxirane |
| Molecular formula | C8H8O |
| Molar mass | 120.15 g/mol |
| Exact mass | 120.0575 |
| Physical form | Solid |
| XLogP3 | 1.6 |
| H-bond donors / acceptors | 0 / 1 |
| Topological polar surface area | 12.5 Ų |
| InChIKey | AWMVMTVKBNGEAK-MRVPVSSYSA-N |
| SMILES | C1[C@@H](O1)C2=CC=CC=C2 |
| PubChem CID | 114946 |
| Synonyms | S-Phenyloxirane, S-(Epoxyethyl)benzene, Styrene oxide, (S)-, Benzene, (epoxyethyl)-, (S)-, (S)-2-Phenyloxirane, Oxirane, 2-phenyl-, (2S)-, (S)-Phenylethylene oxide, (S)-(+)-Epoxyethylbenzene, Oxirane, phenyl-, (2S)-, (S)-phenyl oxirane |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H311Toxic in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H331Toxic if inhaled
- H350May cause cancer
Precautionary statements P203, P261, P262, P264, P264 + P265, P270, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P318, P321, P332 + P317, P337 + P317, P361 + P364, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about (S)-Styrene oxide
Which CAS number identifies (S)-Styrene oxide?
(S)-Styrene oxide is registered under CAS 20780-54-5. You may also see it listed as S-Phenyloxirane, S-(Epoxyethyl)benzene, Styrene oxide, (S)-. Our catalogue number for this item is ZX-038979.
What are the formula and molar mass of (S)-Styrene oxide?
For (S)-Styrene oxide, its formula is C8H8O and its molar mass is 120.15 g/mol. The systematic (IUPAC) name is (2S)-2-phenyloxirane. InChIKey AWMVMTVKBNGEAK-MRVPVSSYSA-N lets you match it in any structure database.
How is (S)-Styrene oxide used in pharmaceutical QC?
(S)-Styrene oxide is a characterised reference material linked to Colestyramine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for (S)-Styrene oxide?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with (S)-Styrene oxide?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship (S)-Styrene oxide to my country?
Yes. Because (S)-Styrene oxide is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
Other grades with CAS 20780-54-5
More Colestyramine standards
More in API Process Intermediates & Related Compounds
21-Acetyl-17,21-dihydroxy-pregna-4,8-diene-3,11,20-trione
- CAS
- 1856-26-4
- Formula
- C23H28O6
- MW
- 400.5 g/mol
ZX-038982
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.