Basic information
- CAS
1191-95-3- Standard SMILES
O=C1CCC1- InChIKey
SHQSVMDWKBRBGB-UHFFFAOYSA-N- Molecular formula
- C4H6O
- Average molar mass
- 70.09 g/mol
- Monoisotopic mass
- 70.04186481
Names & identifiers
- Preferred name
- Cyclobutanone
- IUPAC
- cyclobutanone
- English name
- Cyclobutanone
- Molecular formula
- C4H6O
- Molecular weight
- 70.09
Names & synonyms
Show more names
Database identifiers
- CAS
1191-95-3- PubChem CID
- 14496
- DTXSID
DTXSID9061592- UNII
- 6PF2SH405U
- EC Number
- 214-745-6
- Nikkaji
- J80.072D
Properties
Computed structural properties
- XLogP
- 0
- Topological polar surface area
- 17.1 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 50
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- -50.9 °C · -50.9 °C
- Boiling point
- 99 °C · 99 °C (lit.)
- Density
- 0.938 g/mL · 0.938 g/mL at 25 °C (lit.)
- refractive index
- 20 · n20/D 1.421(lit.)
- Flash point
- 50 °F · 50 °F
- storage temp.
- 2 · 2-8°C
- solubility
- soluble in Dichloromethane
- form
- Liquid
- Specific Gravity
- 0.938 · 0.938
- color
- Clear colorless to slightly yellow
- Water Solubility
- INSOLUBLE
- BRN
- 1560289 · 1560289
- Stability
- Volatile
- InChI
- 1S/C4H6O/c5-4-2-1-3-4/h1-3H2
- InChIKey
- SHQSVMDWKBRBGB-UHFFFAOYSA-N
- SMILES
- O=C1CCC1
- CAS DataBase Reference
- 1191 · 1191-95-3(CAS DataBase Reference)
- FDA UNII
- 6 PF2SH405U · 6PF2SH405U
- EPA Substance Registry System
- Cyclobutanone (1191-95-3)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 2 · GHS02
- Signal word
- Danger
- Hazard statements
- 225 · H225
- Precautionary statements
- 210 · P210-P233-P240-P241-P242-P243
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- F,F+
- Risk Statements
- 10 · 10-11
- Safety Statements
- 23 · 23-24/25-9-33-29-16-7/9
- RIDADR
- 1224 · UN 1224 3/PG 3
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
- HazardClass
- 3 · 3
- PackingGroup
- II
- HS Code
- 29142900 · 29142900
- Storage Class
- 3 · 3 - Flammable liquids
- Hazard Classifications
- 2 · Flam. Liq. 2
- REACH Registrations
- Active
- Limited Quantities
- 5 L · 5.0 L (1.3 gallons) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
Safety & regulation
GHS classification
GHS Classification
Danger
H225 (23.2%): Highly Flammable liquid and vapor [Danger Flammable liquids];H226 (76.8%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 56 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Toxicology
Regulatory information
Safety data
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1224 3/PG 3
- hs_code
- 29142900
- risk_code
- 10-11
- Signal word
- Danger
- Symbol(GHS)
- GHS02
- hazard_code
- F,F+
- safety_code
- 23-24/25-9-33-29-16-7/9
- hazard_class
- 3
- Storage Class
- 3 - Flammable liquids
- packing_group
- II
- Hazard statements
- H225
- Limited Quantities
- 5.0 L (1.3 gallons) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
- REACH Registrations
- Active
- Hazard Classifications
- Flam. Liq. 2
- Precautionary statements
- P210-P233-P240-P241-P242-P243
Chemistry & industry
Uses & manufacturing
Applications
DescriptionCyclobutanone is an organic compound with a four-membered cyclic ketone. It is used in preparation of cyclobutane derivatives, as a starting material for aminocyclobutanecarboxylic acid through sulfonyloxiranes, to prepare dihydro-furan-2-one in presence of polystyrene-bound phenylselenic acid as catalyst. It is also involved in the photochemical synthesis of nucleoside analogues such as bicyclic nucleosides and isonucleosides. Furthermore, it is used to synthesis fatty acid, 2-oxo-cyclobutane undecanoic acid, which is used in the development of an enzyme-linked immunosorbent assy for the detection of irradiated foods.
UsesCyclobutanone is used in preparation of cyclobutane derivatives. It is used as a starting material for aminocyclobutanecarboxylic acid through sulfonyloxiranes. It is also used to prepare dihydro-furan-2-one in presence of polystyrene-bound phenylselenic acid as catalyst. Further, it is involved in the photochemical synthesis of nucleoside analogues such as bicyclic nucleosides and isonucleosides.
Preparation methods
PreparationThe Russian chemist Nikolai Kischner first prepared cyclobutanone in 1905. He synthesized cyclobutanone in a low yield from cyclobutanecarboxylic acid in several reaction steps.Another synthesis of cyclobutanone involves lithium-catalyzed rearrangement of oxaspiropentane, which is formed by epoxidation of the easily accessible methylenecyclopropane.
Upstream & downstream products
Downstream products
Suppliers100 total
Related reactions
Compound notes
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