(S)-Styrene oxide
- CAS No.
- 20780-54-5
- Chemical Name:
- (S)-Styrene oxide
- Synonyms
- (s)-benzen;(S)-EPOXYSTYROL;(S)-PHENYLOXIRANE;(S)-STYRENE OXIDE;(S)-(+)-Styryl oxide;(S)-(-)-Epoxystyrene;(2S)-2β-Phenyloxirane;(2S)-2-Phenyl-oxirane;[(2S)-Oxiranyl]benzene;S-2-PhenylEthyleneOxide
- CBNumber:
- CB1470099
- Molecular Formula:
- C8H8O
- Molecular Weight:
- 120.15
- MDL Number:
- MFCD00064310
- MOL File:
- 20780-54-5.mol
| Product description | Number | Pack Size | Price |
| (S)-(?)-Styrene oxide 98%, optical purity ee: 98% (HPLC) | 540102 | 5g | $85.84 |
| (S)-(?)-Styrene oxide 98%, optical purity ee: 98% (HPLC) | 540102 | 25g | $179 |
| (S)-Phenyloxirane ChiPros?, produced by BASF, 98% | 726834 | 25g | $374 |
| (S)-Styrene Oxide | S0517 | 5G | $68 |
| (S)-Styrene Oxide | S0517 | 25G | $203 |
| More product size | |||
| alpha | -33 º (neat) |
|---|---|
| Boiling point | 192-194 °C(lit.) |
| Density | 1.051 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | 175 °F |
| storage temp. | 2-8°C |
| form | clear liquid |
| color | Colorless to Light yellow to Light orange |
| optical activity | [α]20/D 33°, neat |
| BRN | 3587977 |
| InChI | InChI=1S/C8H8O/c1-2-4-7(5-3-1)8-6-9-8/h1-5,8H,6H2/t8-/m1/s1 |
| InChIKey | AWMVMTVKBNGEAK-MRVPVSSYSA-N |
| SMILES | O1C[C@@H]1C1=CC=CC=C1 |
| CAS DataBase Reference | 20780-54-5(CAS DataBase Reference) |
| FDA UNII | AV5P894C84 |
| UNSPSC Code | 12352005 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() ![]() GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H311+H331-H315-H319-H350-H411 | |||||||||
| Precautionary statements | P273-P280-P302+P352+P312-P304+P340+P311-P305+P351+P338-P308+P313 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | T | |||||||||
| Risk Statements | 45-20/21-36/38 | |||||||||
| Safety Statements | 53-26-36/37-45 | |||||||||
| RIDADR | UN 2810 6.1/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | CZ9625030 | |||||||||
| F | 10 | |||||||||
| HazardClass | 6.1 | |||||||||
| HS Code | 2910900090 | |||||||||
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
|||||||||
| Hazard Classifications | Acute Tox. 3 Dermal Acute Tox. 3 Inhalation Aquatic Chronic 2 Carc. 1B Eye Irrit. 2 Skin Irrit. 2 |
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| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
(S)-Styrene oxide price More Price(30)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 540102 | (S)-(?)-Styrene oxide 98%, optical purity ee: 98% (HPLC) | 20780-54-5 | 5g | $85.84 | 2025-07-31 | Buy |
| Sigma-Aldrich | 540102 | (S)-(?)-Styrene oxide 98%, optical purity ee: 98% (HPLC) | 20780-54-5 | 25g | $179 | 2025-07-31 | Buy |
| Sigma-Aldrich | 726834 | (S)-Phenyloxirane ChiPros?, produced by BASF, 98% | 20780-54-5 | 25g | $374 | 2023-06-20 | Buy |
| TCI Chemical | S0517 | (S)-Styrene Oxide | 20780-54-5 | 5G | $68 | 2025-07-31 | Buy |
| TCI Chemical | S0517 | (S)-Styrene Oxide | 20780-54-5 | 25G | $203 | 2025-07-31 | Buy |
(S)-Styrene oxide Chemical Properties,Uses,Production
Chemical Properties
Colorless to light yellow liqui
Uses
(S)-(-)-Styrene oxide can undergo copolymerization with CO2 to form the corresponding polycarbonate in the presence of a cobalt-based catalyst system.
Definition
ChEBI: The (S)-enantiomer of styrene oxide.
General Description
Styrene oxide is an oxirane derivative, which is used as a monomer for the synthesis of polyesters with relatively high?Tg values via ring-opening copolymerization. It can also be used as a useful intermediate in the preparation of levamisole, a nematocide?and anticancer agent.
(S)-Styrene oxide Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20128 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21597 | 55 |
| Zjartschem | +86-571 87238903 | jocelynpan@zjarts.com | CHINA | 988 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29831 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 | 1026@dideu.com | China | 7099 | 58 |
| AFINE CHEMICALS LIMITED | +86-0571-85134551 | sales@afinechem.com | China | 15080 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52846 | 58 |
View Lastest Price from (S)-Styrene oxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-09-25 | (S)-Styrene oxide
20780-54-5
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
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2025-04-04 | (S)-Styrene oxide
20780-54-5
|
US $0.00-0.00 / kg | 1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. | |
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2019-07-06 | (S)-Styrene oxide
20780-54-5
|
US $7.00 / KG | 1KG | 99% | 100KG | Career Henan Chemical Co |
-

- (S)-Styrene oxide
20780-54-5
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
-

- (S)-Styrene oxide
20780-54-5
- US $0.00-0.00 / kg
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-

- (S)-Styrene oxide
20780-54-5
- US $7.00 / KG
- 99%
- Career Henan Chemical Co







