ChemicalBook >> CAS DataBase List >>TRANS-2,3-EPOXYBUTANE
TRANS-2,3-EPOXYBUTANE
- CAS No.
- 21490-63-1
- Chemical Name:
- TRANS-2,3-EPOXYBUTANE
- Synonyms
- 3-epoxy-trans-butan;(E)-2,3-epoxybutane;TRANS-2-BUTENE OXIDE;rans-2,3-Epoxybutane;TRANS-2,3-EPOXYBUTANE;trans-2-butyleneoxide;trans-2-Butylene Oxide;trans-á-butylene oxide;trans-β-butylene oxide;3-dimethyl-trans-oxiran
- CBNumber:
- CB5473447
- Molecular Formula:
- C4H8O
- Molecular Weight:
- 72.11
- MDL Number:
- MFCD00005129
- MOL File:
- 21490-63-1.mol
- MSDS File:
- SDS
Last updated:2026-05-28 02:03:20
| Product description | Number | Pack Size | Price |
| Trans-2,3-Epoxybutane, 97% | 81241 | 10G | $229.49 |
| trans-2,3-Epoxybutane | WAA49063 | 5g | $413 |
| trans-2,3-Epoxybutane 97% | OR322036 | 5g | $243 |
| trans-2,3-Epoxybutane 97% | OR322036 | 25g | $725 |
| trans-2,3-Epoxybutane 97% | 2109-1-E0 | 10g | $155 |
| Melting point | -85°C |
|---|---|
| Boiling point | 54-55°C |
| Density | 0.807 g/mL at 20 °C(lit.) |
| vapor pressure | 3.83 psi ( 20 °C) |
| refractive index |
n |
| Flash point | -26°C |
| form | liquid |
| color | Clear |
| Specific Gravity | 0.804 |
| biological source | synthetic |
| Water Solubility | Soluble in water(95g/L). |
| Sensitive | Moisture Sensitive |
| BRN | 79772 |
| Major Application | flavors and fragrances |
| InChI | 1S/C4H8O/c1-3-4(2)5-3/h3-4H,1-2H3/t3-,4-/m1/s1 |
| InChIKey | PQXKWPLDPFFDJP-QWWZWVQMSA-N |
| SMILES | C[C@H]1O[C@@H]1C |
| LogP | 1.053 (est) |
| CAS DataBase Reference | 21490-63-1(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| EPA Substance Registry System | Oxirane, 2,3-dimethyl-, (2R,3R)-rel- (21490-63-1) |
| UNSPSC Code | 12164502 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() ![]() GHS02,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H315-H319-H335-H341 | |||||||||
| Precautionary statements | P210-P280-P303+P361+P353 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38 | |||||||||
| Safety Statements | 16-26-36/37 | |||||||||
| RIDADR | UN 3271 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | EK3855040 | |||||||||
| F | 21 | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 2910900090 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
TRANS-2,3-EPOXYBUTANE price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| GFS CHEMICALS | 81241 | Trans-2,3-Epoxybutane, 97% | 21490-63-1 | 10G | $229.49 | 2026-06-03 | Buy |
| Biosynth | WAA49063 | trans-2,3-Epoxybutane | 21490-63-1 | 5g | $413 | 2026-06-05 | Buy |
| Apolloscientific | OR322036 | trans-2,3-Epoxybutane 97% | 21490-63-1 | 5g | $243 | 2026-06-04 | Buy |
| Apolloscientific | OR322036 | trans-2,3-Epoxybutane 97% | 21490-63-1 | 25g | $725 | 2026-06-04 | Buy |
| SynQuest Laboratories | 2109-1-E0 | trans-2,3-Epoxybutane 97% | 21490-63-1 | 10g | $155 | 2026-05-22 | Buy |
TRANS-2,3-EPOXYBUTANE Preparation Products And Raw materials
Raw materials
Preparation Products
TRANS-2,3-EPOXYBUTANE Suppliers
Global( 57)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Career Henan Chemica Co | +86-0371-86658258 +8613203830695 | laboratory@coreychem.com | China | 30224 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-17392587031 | 1059@dideu.com | China | 9996 | 58 |
| Henan Aochuang Chemical Co.,Ltd. | +86-0371-63689365 +8618638391208 | sales@aochuangchem.com | China | 9333 | 58 |
| HANGZHOU LEAP CHEM CO., LTD. | +86-571-87711850 | market18@leapchem.com | China | 43333 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 52923 | 58 | |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43414 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32343 | 55 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30123 | 84 |
| Energy Chemical | 021-021-58432009 400-005-6266 | sales8178@energy-chemical.com | China | 44878 | 61 |
| Syntechem Co.,Ltd | info@syntechem.com | China | 12984 | 57 |
| Supplier | Advantage |
|---|---|
| Career Henan Chemica Co | 58 |
| Shaanxi Dideu Medichem Co. Ltd | 58 |
| Henan Aochuang Chemical Co.,Ltd. | 58 |
| HANGZHOU LEAP CHEM CO., LTD. | 58 |
| Aladdin Scientific | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | 58 |
| Mainchem Co., Ltd. | 55 |
| Alfa Aesar | 84 |
| Energy Chemical | 61 |
| Syntechem Co.,Ltd | 57 |
View Lastest Price from TRANS-2,3-EPOXYBUTANE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2025-04-04 | TRANS-2,3-EPOXYBUTANE
21490-63-1
|
1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. |
-

- TRANS-2,3-EPOXYBUTANE
21490-63-1
- 98%
- Henan Aochuang Chemical Co.,Ltd.
21490-63-1(TRANS-2,3-EPOXYBUTANE)Related Search:
2,3-Butylene oxide (trans)
2,3-Dimethyl-oxirane (E)
3-dimethyl-trans-oxiran
3-epoxy-trans-butan
Butane, 2,3-epoxy-, trans-
trans-2-Butylene Oxide
trans-2-butyleneoxide
TRANS-2-BUTENE OXIDE
TRANS-2,3-EPOXYBUTANE
TRANS-2 3-EPOXYBUTANE (RACEMIC)
TRANS-2,3-DIMETHYLOXIRANE
TRANS-BETA-BUTYLENE OXIDE
Oxirane, 2,3-dimethyl-, (2R,3R)-rel- (9CI)
trans-á-butylene oxide
trans-β-butylene oxide
trans-β-Butylene oxide, trans-2,3-Dimethyloxirane, trans-2-Butene oxide
trans-2,3-Epoxybutane, trans-2-Butene oxide
rel-(2R*,3R*)-2,3-Dimethyloxirane
rel-(2R*,3R*)-2,3-Epoxybutane
Oxirane, 2,3-dimethyl-,(2R,3R)-rel-
trans-2,3-EPOXYBUTANE, 97%trans-2,3-EPOXYBUTANE, 97%trans-2,3-EPOXYBUTANE, 97%trans-2,3-EPOXYBUTANE, 97%
rans-2,3-Epoxybutane
(E)-2,3-epoxybutane
TRANS-2,3-EPOXYBUTANE ISO 9001:2015 REACH
trans-2,3-Epoxybutane
21490-63-1
Oxygen Compounds
Organic Building Blocks
Epoxides
Building Blocks
EPOXYDE







