3-Amino-4-methoxybenzoic acid
Also known as: 3-Amino-p-anisic acid, 3-Aminoanisic acid, 5-Carboxy-2-methoxyaniline, 3-Amino-4-anisic acid, Benzoic acid, 3-amino-4-methoxy-, 3-Amino-4-methoxy-benzoesaeure, 3-Amino-4-methoxylbenzoic acid, 3-Amino-anissaeure
3-Amino-4-methoxybenzoic acid (CAS 2840-26-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9NO3 and a molecular weight of 167.162 g/mol. Key properties include a melting point of 208-210 °C(lit.), a boiling point of 351.6±27.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 166.4±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2840-26-8
- Jingsj CID
- J-32378-4
- Molecular Formula
- C8H9NO3
- Molecular Weight
- 167.162 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 208-210 °C(lit.) |
|---|---|
| Boiling Point | 351.6±27.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 166.4±23.7 °C |
| Exact Mass | 167.058243 |
| PSA | 72.55000 |
| LogP | 1.09 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.604 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922509090 |
|---|---|
| Summary | 2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. 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-Amino-4-methoxybenzoic acid?
The CAS number of 3-Amino-4-methoxybenzoic acid is 2840-26-8.
What are the molecular formula and molecular weight of 3-Amino-4-methoxybenzoic acid?
3-Amino-4-methoxybenzoic acid has molecular formula C8H9NO3 and molecular weight 167.162 g/mol.
Is 3-Amino-4-methoxybenzoic acid hazardous?
3-Amino-4-methoxybenzoic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
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-Amino-4-methoxybenzoic acid (CAS 2840-26-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32378-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.