一氧化丁二烯

Description

Butadiene monoxide · CAS 930-22-3 · C4H6O. UNII 478ERR5NKR. Boiling Point: 149 to 151 °F at 760 mmHg (NTP, 1992); Boiling Point: 68 °C; Boiling Point: 67 °C @760 [mm Hg].

Identification

CAS Registry Number	930-22-3
PubChem CID	13586
Molecular formula	C4H6O
IUPAC name	2-ethenyloxirane
UNII (FDA)	478ERR5NKR

Computed Descriptors

Molecular Weight	70.09
XLogP3	0.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	1
Exact Mass	70.041864811
Monoisotopic Mass	70.041864811
Topological Polar Surface Area	12.5
Heavy Atom Count	5
Formal Charge	0

Physical & Chemical Properties

Boiling Point	149 to 151 °F at 760 mmHg (NTP, 1992)
Boiling Point	68 °C
Boiling Point	67 °C @760 [mm Hg]
Melting Point	-211 °F (NTP, 1992)
Melting Point	-135 deg
Melting Point	-135 °C
Flash Point	-50 °F (NTP, 1992)
Flash Point	Flash point < -50 °C
Solubility	10 to 50 mg/mL at 70 °F (NTP, 1992)
Density	0.9006 g/cu cm @ 25 °C

Physical description & handling notes

• 1,2-epoxy-3-butene is a clear light yellow liquid. (NTP, 1992)
• Light yellow liquid; [CAMEO] Colorless liquid; [MSDSonline]
• Liquid
• BELOW -50 °C (BELOW -58 °F) (CLOSED CUP)
• Soluble in ethanol, ethyl ether, benzene, and organic solvents
• 0.87 (NTP, 1992) - Less dense than water; will float

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS BUTADIENE MONOXIDE POLYMER

GHS Hazard Classification

Reported hazard statements	H225 (100%), H302 (89.1%), H319 (91.3%)

Documented Uses

• Used as a comonomer with propylene oxide for polyethers and a reactive diluent for epoxy resins; [HSDB]
• Plastic Composites Manufacturing [Category: Industry]
• COMONOMER WITH PROPYLENE OXIDE FOR POLYETHERS
• REACTIVE DILUENT FOR EPOXY RESINS
• May contain up to 3% methylene chloride.
• Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes.

Synonyms

Butadiene monoxide; 930-22-3; 3,4-EPOXY-1-BUTENE; 2-Vinyloxirane; Oxirane, ethenyl-; 1,2-Epoxy-3-butene; Vinyloxirane; Ethenyloxirane; Butadiene monoepoxide; Butadiene oxide; Butadiene monooxide; Vinylethylene oxide; 1,2-Epoxybutene-3; 3,4-Epoxybutene; 1,2-Oxido-3-butene; 1,3-Butadiene oxide

Frequently Asked Questions

What are the CAS number and molecular formula of Butadiene monoxide?

CAS 930-22-3; molecular formula C4H6O; molecular weight — g/mol.

What other names is Butadiene monoxide known by?

Butadiene monoxide, 930-22-3, 3,4-EPOXY-1-BUTENE, 2-Vinyloxirane, Oxirane, ethenyl-, 1,2-Epoxy-3-butene.

What is the regulatory status of Butadiene monoxide?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; BUTADIENE MONOXIDE POLYMER.

Is Butadiene monoxide classified as hazardous?

Hazard statements reported: H225, H302, H319.

What are the key physical properties of Butadiene monoxide?

Boiling Point: 149 to 151 °F at 760 mmHg (NTP, 1992); Boiling Point: 68 °C; Boiling Point: 67 °C @760 [mm Hg]; Melting Point: -211 °F (NTP, 1992).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.