| Name | 3,4-dihydro-2H-pyran-2-carboxaldehyde |
| Synonyms | Acrolein dimer acrylaldehyde dimer 2-formyl-2,3-dihydropyran 2-Formyl-3,4-Dihydro-2H-Pyran 3,4-dihydro-2H-pyran-2-carbaldehyde 3,4-dihydro-2H-pyran-2-carboxaldehyde |
| CAS | 100-73-2 |
| EINECS | 202-884-5 |
| InChI | InChI=1/C4H10O2/c1-2-6-4-3-5/h5H,2-4H2,1H3 |
| Molecular Formula | C4H10O2 |
| Molar Mass | 90.121 |
| Density | 0.915g/cm3 |
| Melting Point | -99.9°C |
| Boling Point | 135.6°C at 760 mmHg |
| Flash Point | 44.4°C |
| Vapor Presure | 3.28mmHg at 25°C |
| Refractive Index | 1.399 |
| Hazard Symbols | Xn - Harmful![]() |
| Risk Codes | R10 - Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R41 - Risk of serious damage to eyes |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33 - Take precautionary measures against static discharges. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2607 |
| RTECS | UP6825000 |
| Hazard Class | 3.2 |
| Packing Group | III |
| NIST chemical information | Acrolein dimer(100-73-2) |
| EPA chemical information | 2H-Pyran-2-carboxaldehyde, 3,4-dihydro- (100-73-2) |
| category | flammable liquid |
| toxicity classification | Poisoning |
| acute toxicity | oral-rat LD50: 4920 mg/kg |
| Stimulus data | skin-rabbit 500 mg mild; Eye-rabbit 0.75 mg severe |
| explosive hazard characteristics | Steam and air can be exploded when mixed |
| flammability hazard characteristics | flammable |
| storage and transportation characteristics | The warehouse is ventilated and dry at low temperature; it is stored and transported separately from the oxidant |
| fire extinguishing agent | Dry powder, carbon dioxide, mist water, foam |