1-bromo-2,4,5-trimethoxybenzene
Also known as: 1-bromo-2,4,5-trimethoxy-benzene, 2,4,5-trimethoxybromobenzene, 5-bromo-1,2,4-trimethoxybenzene, Benzene, 1-bromo-2,4,5-trimethoxy-, NSC 143548
1-bromo-2,4,5-trimethoxybenzene (CAS 20129-11-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H11BrO3 and a molecular weight of 247.08600 g/mol. Key properties include a melting point of 55°C, a boiling point of 284.1ºC at 760 mmHg, a density of 1.391g/cm3 and a flash point of 113.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20129-11-7
- Jingsj CID
- J-1499971-4
- Molecular Formula
- C9H11BrO3
- Molecular Weight
- 247.08600 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 55°C |
|---|---|
| Boiling Point | 284.1ºC at 760 mmHg |
| Density | 1.391g/cm3 |
| Flash Point | 113.4ºC |
| Exact Mass | 245.98900 |
| PSA | 27.69000 |
| LogP | 2.47490 |
| Vapor Pressure | 0.00521mmHg at 25°C |
| Refractive Index | 1.519 |
Customs & Trade Information
| HS Code | 2909309090 |
|---|---|
| Summary | 2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-bromo-2,4,5-trimethoxybenzene?
The CAS number of 1-bromo-2,4,5-trimethoxybenzene is 20129-11-7.
What are the molecular formula and molecular weight of 1-bromo-2,4,5-trimethoxybenzene?
1-bromo-2,4,5-trimethoxybenzene has molecular formula C9H11BrO3 and molecular weight 247.08600 g/mol.
What are the upstream and downstream products of 1-bromo-2,4,5-trimethoxybenzene?
For 1-bromo-2,4,5-trimethoxybenzene, Upstream Products: 1,2,4-Trimethoxybenzene, 2,4,5-Trimethoxybenzoic acid, 2,4-Dimethoxyphenol; Downstream Products: 2,5-Dimethoxy-1,4-benzoquinone, 2,4,5-Trimethoxyaniline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-bromo-2,4,5-trimethoxybenzene (CAS 20129-11-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499971-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.