2-Aminophenol-4-sulfonic acid
3-氨基-4-羟基苯磺酸
Also known as: 3-Amino-4-hydroxybenzenesulfonic acid, APS, 4-Hydroxy-3-aminobenzenesulfonic acid, Benzenesulfonic acid, 3-amino-4-hydroxy-, 2-Amino-1-phenol-4-sulfonic acid, 2-Aminophenol-4-sulfonic acid hydrate, 3-Amino-4-hydroxybenzenesulfonic acid semihydrate
2-Aminophenol-4-sulfonic acid (CAS 98-37-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7NO4S and a molecular weight of 189.18900 g/mol. It is also known as 3-Amino-4-hydroxybenzenesulfonic acid, APS and 4-Hydroxy-3-aminobenzenesulfonic acid. Key property: a melting point of ≥300 °C(lit.). GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 98-37-3
- Jingsj CID
- J-1135703-0
- Molecular Formula
- C6H7NO4S
- Chinese Name
- 3-氨基-4-羟基苯磺酸
- Molecular Weight
- 189.18900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ≥300 °C(lit.) |
|---|
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 2-Aminophenol-4-sulfonic acid?
The CAS number of 2-Aminophenol-4-sulfonic acid is 98-37-3.
What are the molecular formula and molecular weight of 2-Aminophenol-4-sulfonic acid?
2-Aminophenol-4-sulfonic acid has molecular formula C6H7NO4S and molecular weight 189.18900 g/mol.
Is 2-Aminophenol-4-sulfonic acid hazardous?
2-Aminophenol-4-sulfonic acid has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Aminophenol-4-sulfonic acid (CAS 98-37-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1135703-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.