2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane
- CAS NO.：347389-74-6
- Empirical Formula: C8H13BO2
- Molecular Weight: 152
- MDL number: MFCD13182122
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:19:41
![2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane Structural](https://img.chemicalbook.in/CAS/GIF/347389-74-6.gif)
Properties of 2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane
| Boiling point: | 133℃ |
| Density | 0.93 |
| refractive index | 1.4300 to 1.4340 |
| Flash point: | 34℃ |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| solubility | Acetonitrile (Slightly), Chloroform (Sparingly) |
| form | Solid |
| color | Colourless to Off-White Low-Melting |
Safety information for 2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane
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