2139-43-7
2139-43-7 structure
- Name: 1,3-Benzodioxole,5-bromo-6-(1,3-dioxolan-2-yl)-
- Chemical Name: 5-bromo-6-(1,3-dioxolan-2-yl)-1,3-benzodioxole
- CAS Number: 2139-43-7
- Molecular Formula: C10H9BrO4
- Molecular Weight: 273.08000
- Create Date: 2018-11-24 15:17:54
- Modify Date: 2025-08-31 20:44:15
| Name | 5-bromo-6-(1,3-dioxolan-2-yl)-1,3-benzodioxole |
|---|---|
| Synonyms |
2-bromo-4,5-methylenedioxybenzaldehyde ethylene acetal
2-bromo-4,5-methylendioxy-1-(1,3-dioxolanyl)benzene 5-bromo-6-[1,3]dioxolan-2-yl-benzo[1,3]dioxole 6-bromopiperonal ethylene acetal HMS3089L19 5-bromo-6-(1,3-dioxolanyl-2-yl)-2,3-methylenedioxybenzene |
| Density | 1.682g/cm3 |
|---|---|
| Boiling Point | 322.5ºC at 760mmHg |
| Molecular Formula | C10H9BrO4 |
| Molecular Weight | 273.08000 |
| Flash Point | 130.5ºC |
| Exact Mass | 271.96800 |
| PSA | 36.92000 |
| LogP | 2.22320 |
| Vapour Pressure | 0.000523mmHg at 25°C |
| Index of Refraction | 1.597 |
| HS Code | 2932999099 |
|---|
|
~99%
2139-43-7 |
| Literature: Yoda, Hidemi; Nakahama, Akira; Koketsu, Tomomi; Takabe, Kunihiko Tetrahedron Letters, 2002 , vol. 43, # 26 p. 4667 - 4669 |
|
~72%
2139-43-7 |
| Literature: Bearsden Bio, Inc. Patent: US6048853 A1, 2000 ; |
|
~%
2139-43-7 |
| Literature: Kita, Yasuyuki; Arisawa, Mitsuhiro; Gyoten, Michiyo; Nakajima, Makiko; Hamada, Ryuji; Tohma, Hirofumi; Takada, Takeshi Journal of Organic Chemistry, 1998 , vol. 63, # 19 p. 6625 - 6633 |
| Precursor 3 | |
|---|---|
| DownStream 6 | |
![[1,3]dioxolo[4,5-g]phthalazine structure](https://image.chemsrc.com/caspic/099/269-50-1.png)
![6-(3,4,5-trimethoxybenzoyl)benzo[1,3]dioxole-5-carbaldehyde structure](https://image.chemsrc.com/caspic/252/5423-32-5.png)
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |