3,3-Dimethylbutyne
3,3-Dimethyl-1-butyne
CAS: 917-92-0
Molecular Formula: C6H10
3,3-Dimethylbutyne - Names and Identifiers
| Name | 3,3-Dimethyl-1-butyne |
| Synonyms | (CH3)3CCequivCH TERT-BUTYLETHYNE T-BUTYL ACETYLENE TERT-BUTYLACETYLENE 3,3-Dimethylbutyne 3,3-DIMETHYLBUTYNE-1 3.3-DIMETHYL-1-BUTYNE 3,3-dimethylbut-1-yne 3,3-Dimethyl-1-butyne 3,3-dimethyl-but-1-yne 3-3'-Dimethyl-1-Butyne 3,3,3-Trimethylpropyne 1-BUTYNE, 3,3-DIMETHYL- 1,2-DIMETHYL-1,4-CYCLOHEXADIENE 1-Butyne, 3,3-dimethyl-(6CI,8CI,9CI) 3,3-DIMETHYL-1-BUTYNE(INTERMEDIATE OF TERBINAFINE) |
| CAS | 917-92-0 |
| EINECS | 213-035-3 |
| InChI | InChI=1/C6H10/c1-5-6(2,3)4/h1H,2-4H3 |
3,3-Dimethylbutyne - Physico-chemical Properties
| Molecular Formula | C6H10 |
| Molar Mass | 82.1436 |
| Density | 0.737g/cm3 |
| Melting Point | -78℃ |
| Boling Point | 37.7°C at 760 mmHg |
| Flash Point | <−30 °F |
| Water Solubility | Miscible with chloroform, benzene and toluene. Immiscible with water. |
| Vapor Presure | 481mmHg at 25°C |
| Refractive Index | 1.41 |
| Physical and Chemical Properties | Liquid. Melting point -78 ℃, boiling point 37-38 ℃, relative density 0.667, refractive index 1.3740, flammable, flash point <-34 ℃. |
| Use | For pharmaceutical terbinafine intermediates, Organic synthesis |
3,3-Dimethylbutyne - Risk and Safety
| Hazard Symbols | F+ - Highly flammable Xi - Irritant  |
| Risk Codes | R12 - Extremely Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S3 - Keep in a cool place. 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. |
| UN IDs | UN 3295 |
3,3-Dimethylbutyne - Upstream Downstream Industry
| Raw Materials | 1,1-DICHLORO-3,3-DIMETHYLBUTANE |
| Downstream Products | Terbinafine (3,3-DIMETHYL-1-BUTYNE)DICOBALT HEXACARBONYL 1,1-DIBROMOPINACOLONE 2-TERT-BUTYL-1H-INDOLE 2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL |
3,3-Dimethylbutyne - Nature
| chemical properties | liquid. Melting point -78 ℃, boiling point 37-38 ℃, relative density 0.667, refractive index 1.3740, flammable, flash point <-34 ℃. |
| use | for pharmaceutical intermediates, organic synthesis. |
| use | Used as an intermediate for the drug terbinafine, and also used in organic synthesis |
| use | Used in pharmaceutical terbinafine intermediate, organic synthesis |
| production method | The product is prepared by reacting 1, 1-dichloro-3, 3-dimethylbutane with potassium hydroxide (dehydrochlorination). |
Last Update：2024-04-10 22:29:15
3,3-Dimethylbutyne - Security information
| dangerous goods mark | F ,Xi |
| hazard category code | 12-36/37/38 |
| safety instructions | 3-16-26-33-7/9 |
| dangerous goods transport number | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| HazardClass | 3 |
| PackingGroup | I |
| customs code | 29012990 |
Last Update：2024-04-10 22:29:15
3,3-Dimethylbutyne - Nature
| melting point | -78°C (lit.) |
| boiling point | 37-38°C (lit.) |
| density | 0.667 g/mL at 25°C (lit.) |
| Vapor pressure | 7.88 psi ( 20 °C) |
| refractive index | n20/D 1.374(lit.) |
| flash point | <−30 °F |
| storage conditions | 2-8°C |
| morphology | Liquid |
| color | Clear colorless |
| water solubility | Miscible with chloroform, benzene and toluene. Immiscible with water. |
| BRN | 1697100 |
| stability | Stable, but highly flammable. Readily forms explosive mixtures with air. Note low flash point. |
| NIST chemical information | 1-Butyne, 3,3-dimethyl-(917-92-0) |
Last Update：2024-04-10 22:29:15
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Raw Materials for 3,3-Dimethylbutyne
Downstream Products for 3,3-Dimethylbutyne
Terbinafine
(3,3-DIMETHYL-1-BUTYNE)DICOBALT HEXACARBONYL
1,1-DIBROMOPINACOLONE
2-TERT-BUTYL-1H-INDOLE
2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL
(3,3-DIMETHYL-1-BUTYNE)DICOBALT HEXACARBONYL
1,1-DIBROMOPINACOLONE
2-TERT-BUTYL-1H-INDOLE
2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL