250726-93-3
250726-93-3 structure
- Name: 2-(2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-5-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
- Chemical Name: 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine
- CAS Number: 250726-93-3
- Molecular Formula: C12H17BO4S
- Molecular Weight: 268.13700
- Create Date: 2018-12-29 12:46:52
- Modify Date: 2025-08-23 17:14:15
| Name | 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine |
|---|---|
| Synonyms |
2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxoborolane 2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno-[3,4-b][1,4]dioxin 3,4-ethylenedioxythiophene 4,4',5,5'-tetramethyl-1,3,2-dioxaboronic ester 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine |
| Density | 1.21g/cm3 |
|---|---|
| Boiling Point | 372.9ºC at 760mmHg |
| Melting Point | 93ºC |
| Molecular Formula | C12H17BO4S |
| Molecular Weight | 268.13700 |
| Flash Point | 179.3ºC |
| Exact Mass | 268.09400 |
| PSA | 65.16000 |
| LogP | 1.81850 |
| Vapour Pressure | 2E-05mmHg at 25°C |
| Index of Refraction | 1.53 |
| Storage condition | 2-8°C |
| Hazard Codes | Xi: Irritant; |
|---|---|
| HS Code | 2934999090 |
|
~86%
250726-93-3 |
| Literature: Tetrahedron, , vol. 69, # 2 p. 861 - 866 |
|
~71%
250726-93-3 |
| Literature: Tetrahedron, , vol. 55, # 40 p. 11745 - 11754 |
|
~%
250726-93-3 |
| Literature: Journal of Organic Chemistry, , vol. 77, # 20 p. 8851 - 8863 |
| Precursor 4 | |
|---|---|
| DownStream 0 | |
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |