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trans-2,3-Epoxybutane

trans-2,3-Epoxybutane Structure
trans-2,3-Epoxybutane structure
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-butyleneoxide;trans-2,3-Epoxybutane;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:2026-09-12 18:53:34
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trans-2,3-Epoxybutane Properties

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 n20/D 1.373
Flash point -26°C
form liquid
Specific Gravity 0.804
color Clear
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)  Flame (GHS02)Exclamation Mark (GHS07)Health Hazard (GHS08)
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
3
2 0

trans-2,3-Epoxybutane price More Price(17)

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
Product number Packaging Price Buy
81241 10G $229.49 Buy
WAA49063 5g $413 Buy
OR322036 5g $243 Buy
OR322036 25g $725 Buy
2109-1-E0 10g $155 Buy

trans-2,3-Epoxybutane Chemical Properties, Uses, Production

Uses

A higher order cuprate reacted with trans-2,3-epoxybutane a high yield both counted on the epoxide (96%) and on the haloalkane (85%). Enolate derived from trans-2,3-Epoxybutan has chiral recognition.

trans-2,3-Epoxybutane Preparation Products And Raw materials

Raw materials

Preparation Products

trans-2,3-Epoxybutane Suppliers

Global Suppliers ( 56)
Supplier Tel Email Country ProdList Advantage
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Jiaxing Deyi Chemical Co., Ltd. 86-0573-85866609 18367600069 945717149@qq.com China 9506 58
Tianjin heowns Biochemical Technology Co., Ltd. 400-6387771-6039 18920764717 sales@heowns.com China 24650 60
Shaanxi Dideu Medichem Co. Ltd +86-29-81139210 +86-17392587031 1059@dideu.com China 9789 58
Career Henan Chemica Co +86-0371-86658258 +86-13203830695 laboratory@coreychem.com China 30203 58
Shanghai Youde Chemical Technology Co., Ltd. 021-37910267 15821801668 sales@udchem.com China 1216 58
Supplier Advantage
Alfa Aesar 84
Energy Chemical 61
Syntechem Co.,Ltd 57
Shanghai Macklin Biochemical Co.,Ltd. 55
Sigma-Aldrich 80
Jiaxing Deyi Chemical Co., Ltd. 58
Tianjin heowns Biochemical Technology Co., Ltd. 60
Shaanxi Dideu Medichem Co. Ltd 58
Career Henan Chemica Co 58
Shanghai Youde Chemical Technology Co., Ltd. 58

View Latest Price from trans-2,3-Epoxybutane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
TRANS-2,3-EPOXYBUTANE pictures 2025-04-04 TRANS-2,3-EPOXYBUTANE
21490-63-1
 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.

trans-2,3-Epoxybutane Spectrum

TRANS-2,3-EPOXYBUTANE(21490-63-1)1HNMRTRANS-2,3-EPOXYBUTANE(21490-63-1)13CNMRTRANS-2,3-EPOXYBUTANE(21490-63-1)FT-IRTRANS-2,3-EPOXYBUTANE(21490-63-1)RamanTRANS-2,3-EPOXYBUTANE(21490-63-1)IR

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1of4

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 (RACEMIC) 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 TRANS-2,3-DIMETHYLOXIRANE TRANS-BETA-BUTYLENE OXIDE Oxirane, 2,3-dimethyl-, (2R,3R)-rel- (9CI) trans-á-butylene oxide trans-β-butylene oxide (E)-2,3-epoxybutane 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 TRANS-2,3-EPOXYBUTANE ISO 9001：2015 REACH trans-2,3-Epoxybutane trans-2,3-Epoxybutane 21490-63-1 Oxygen Compounds Organic Building Blocks Epoxides Building Blocks EPOXYDE