3-Bromo-4,5-dimethoxybenzoic acid
Also known as: 3-bromo-4,5-dimethoxybenzoic acid, 5-bromo-3,4-dimethoxybenzoic acid, Benzoic acid, 3-bromo-4,5-dimethoxy-, RARECHEM AL BE 0658, 5-Brom-veratrumsaeure
3-Bromo-4,5-dimethoxybenzoic acid (CAS 20731-48-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9BrO4 and a molecular weight of 261.06900 g/mol. Key properties include a boiling point of 340.5ºC at 760 mmHg, a density of 1.571g/cm3 and a flash point of 159.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20731-48-0
- Jingsj CID
- J-1510763-8
- Molecular Formula
- C9H9BrO4
- Molecular Weight
- 261.06900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 340.5ºC at 760 mmHg |
|---|---|
| Density | 1.571g/cm3 |
| Flash Point | 159.7ºC |
| Exact Mass | 259.96800 |
| PSA | 55.76000 |
| LogP | 2.16450 |
| Vapor Pressure | 3.32E-05mmHg at 25°C |
| Refractive Index | 1.566 |
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Bromo-4,5-dimethoxybenzoic acid?
The CAS number of 3-Bromo-4,5-dimethoxybenzoic acid is 20731-48-0.
What are the molecular formula and molecular weight of 3-Bromo-4,5-dimethoxybenzoic acid?
3-Bromo-4,5-dimethoxybenzoic acid has molecular formula C9H9BrO4 and molecular weight 261.06900 g/mol.
What are the upstream and downstream products of 3-Bromo-4,5-dimethoxybenzoic acid?
For 3-Bromo-4,5-dimethoxybenzoic acid, Upstream Products: 3-Bromo-4,5-dimethoxybenzaldehyde, 5-Bromovanillin, Vanillin; Downstream Products: 3-Hydroxy-4,5-dimethoxybenzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Bromo-4,5-dimethoxybenzoic acid (CAS 20731-48-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510763-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.