C3H4O
Index of chemical compounds with the same molecular formula
From Wikipedia, the free encyclopedia
C3H4O is a chemical formula that represents each of several actual and hypothetical compounds that differ in structure, but each consist of three atoms of carbon, four of hydrogen, and one of oxygen. The following compounds are among them:
| Name | CAS # | Notes | Structure |
|---|---|---|---|
| Oxetene, 2H-Oxete | 287-25-2 | Synthesized;[1] unstable.[2] Can be made by using light to cyclize acrolein.[3] |  |
| 2-Oxabicyclo[1.1.0]butane[4] | 35553-05-0 |  | |
| Acrolein, 2-propenal | 107-02-8 | Forms from pollutants, burning, metabolism.[5] Cis and trans forms; cis form predominant.[5] |  |
| Propa-1,2-dien-1-ol[6] | 81788-96-7 | Synthesized.[7] Tautomerizes "quantitatively" to acrolein above −50 °C.[7] |  |
| Propargyl alcohol or 2-propyn-1-ol | 107-19-7 | "Mild, geranium odor"[8] Used in synthesis, as corrosion inhibitor, soil fumigant.[9] |  |
| Methoxy ethyne, methoxyacetylene | 6443-91-0 |  | |
| Prop-1-yn-1-ol,[10] 1-propynol[11] | 6175-54-8 |  | |
| Methylketene or 1-propen-1-one[12] | 6004-44-0 | Synthesized.[13] Intermediate in acrolein pyrolysis.[14] Of astronomical interest.[13] |  |
| Methylene oxirane,[15] allene oxide | 40079-14-9 | Synthesized;[16] predicted (1968) to isomerize "readily" to cyclopropanone.[16][17][needs update] |  |
| Cyclopropanone | 5009-27-8 | Synthesized; unstable due to polymerization and ring-opening.[18] Derivatives used in synthesis, biology.[18]
Tautomer of 1-cyclopen-1-ol[citation needed] |
 |
| Cycloprop-1-en-1-ol, cyclopropene alcohol[19] | 81788-95-6 | Tautomer of cyclopropanone; Not synthesized[citation needed] |  |
| 2-Cyclopropenol or 1-hydroxy-2-cyclopropene[dubious – discuss] | 81788-94-5 | Not synthesized[citation needed] |  |
| 1,2-Epoxypropene or 2-methyloxirene[20] | 2835-41-8 | Synthesized; unstable. Product of ionized diazoacetone; isomerizes "rapidly" to methylketene, acrolein, methoxyethyne, and/or 1-propynol.[21][22] |  |
