(S)-Styrene oxide

Name: (S)-Styrene oxide
Brand: Vaqora Chemicals
SKU: VQ-047864

About (S)-Styrene oxide

(S)-Styrene oxide (CAS 20780-54-5) is a process intermediate or related compound of Colestyramine offered by Vaqora Chemicals. Its molecular formula is C8H8O and its molecular weight is 120.15 g/mol. Its systematic (IUPAC) name is (2S)-2-phenyloxirane. It is also known as S-Phenyloxirane or S-(Epoxyethyl)benzene.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Process chemists and analysts use it when developing synthetic routes to Colestyramine, tracking process-related impurities and validating analytical methods. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer (S)-Styrene oxide in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Colestyramine

View every impurity, metabolite and intermediate we list for Colestyramine.

Colestyramine impurities

Specifications & identifiers

Chemical identifiers
Product name	(S)-Styrene oxide
Catalogue No.	VQ-047864
CAS Number	20780-54-5
IUPAC name	(2S)-2-phenyloxirane
Molecular formula	C₈H₈O
Molecular weight	120.15 g/mol
Exact mass	120.0575
InChIKey	AWMVMTVKBNGEAK-MRVPVSSYSA-N
SMILES	C1[C@@H](O1)C2=CC=CC=C2
PubChem CID	114946

Physical properties
Physical form	Solid
LogP (XLogP3)	1.6
H-bond donors / acceptors	0 / 1
TPSA	12.5 Å²
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

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 20780-54-5

Extra Pure

S(-)STYRENE OXIDE [(S)-2-Phenyloxirane], extra pure >98%

CAS: 20780-54-5
Formula: C₈H₈O
MW: 120.15 g/mol

VQ-020117

Frequently asked questions

What is the CAS number of (S)-Styrene oxide?

The CAS Registry Number of (S)-Styrene oxide is 20780-54-5. It is also known as S-Phenyloxirane, S-(Epoxyethyl)benzene, Styrene oxide, (S)-.

What is the molecular formula and molecular weight of (S)-Styrene oxide?

(S)-Styrene oxide has the molecular formula C8H8O and a molecular weight of 120.15 g/mol. Its IUPAC name is (2S)-2-phenyloxirane.

What is (S)-Styrene oxide used for?

(S)-Styrene oxide is supplied as a characterised reference material related to Colestyramine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of (S)-Styrene oxide can I order?

We supply (S)-Styrene oxide, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with (S)-Styrene oxide?

Yes. Every lot of (S)-Styrene oxide is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can (S)-Styrene oxide be shipped internationally?

Yes. (S)-Styrene oxide is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.