4-Aminosalicylic acid
对氨基水杨酸
Also known as: 4-Amino-2-hydroxybenzoic acid, p-Aminosalicylic acid, PAS, para-Aminosalicylic acid, 4-ASA, Aminosalicylic Acid, 2-Hydroxy-4-aminobenzoic acid
4-Aminosalicylic acid (CAS 65-49-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H7NO3 and a molecular weight of 153.135 g/mol. It is also known as 4-Amino-2-hydroxybenzoic acid, p-Aminosalicylic acid and PAS. Key properties include a melting point of 135-145 °C(lit.), a boiling point of 380.8±32.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 184.1±25.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 65-49-6
- Jingsj CID
- J-953389-7
- Molecular Formula
- C7H7NO3
- Chinese Name
- 对氨基水杨酸
- Molecular Weight
- 153.135 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 135-145 °C(lit.) |
|---|---|
| Boiling Point | 380.8±32.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 184.1±25.1 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 4-Aminosalicylic acid?
The CAS number of 4-Aminosalicylic acid is 65-49-6.
What are the molecular formula and molecular weight of 4-Aminosalicylic acid?
4-Aminosalicylic acid has molecular formula C7H7NO3 and molecular weight 153.135 g/mol.
Is 4-Aminosalicylic acid hazardous?
4-Aminosalicylic acid has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Aminosalicylic acid (CAS 65-49-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-953389-7 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.