1423-60-5
but-3-yn-2-one
CAS: 1423-60-5
Molecular Formula: C4H4O
1423-60-5 - Names and Identifiers
| Name | but-3-yn-2-one |
| Synonyms | 3-Butyn-2-one 3-BUTYN-2-ONE 1-BUTYN-3-ONE 1-BUTYNE-3-ONE but-3-yn-2-one But-3-yn-2-one 3-BUTYNE-2-ONE Methyl ethynyl ketone ETHYNYL METHYL KETONE |
| CAS | 1423-60-5 |
| EINECS | 215-834-2 |
| InChI | InChI=1/C4H4O/c1-3-4(2)5/h1H,2H3 |
1423-60-5 - Physico-chemical Properties
| Molecular Formula | C4H4O |
| Molar Mass | 68.07 |
| Density | 0.87g/mLat 25°C(lit.) |
| Boling Point | 85°C(lit.) |
| Flash Point | 28°F |
| Water Solubility | It is soluble in water. |
| Vapor Presure | 70.6mmHg at 25°C |
| Appearance | Liquid |
| Specific Gravity | 0.870 |
| Color | Clear yellow to orange-brown |
| BRN | 605353 |
| Storage Condition | 0-6°C |
| Refractive Index | n20/D 1.406(lit.) |
1423-60-5 - Risk and Safety
| Risk Codes | R28 - Very Toxic if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R11 - Highly Flammable R15 - Contact with water liberates extremely flammable gases R10 - Flammable |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S7/8 - S7/9 - S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 1992 3/PG 2 |
| WGK Germany | 3 |
| RTECS | ES0875000 |
| FLUKA BRAND F CODES | 19 |
| HS Code | 29141900 |
| Hazard Note | Highly Flammable/Highly Toxic |
| Hazard Class | 3 |
| Packing Group | II |
1423-60-5 - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | 3-alkynyl-2-butanone is an organic intermediate, it can be obtained by the preparation of 2-methyl-1-buten-3-yne. Can be used for the preparation of pharmaceutically active molecules. substrate, used in a gallium (III) chloride-mediated stereoselective, conjugated arylation reaction to form the (E)-α,β-unsaturated ketone. |
Last Update：2024-04-09 02:00:04
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