4-Amino-1-naphthalenesulfonic acid
Also known as: Naphthionic acid, 1-Naphthylamine-4-sulfonic acid, 4-Aminonaphthalene-1-sulfonic acid, 4-Amino-1-naphthalenesulphonic acid, alpha-Naphthylamine-4-sulfonic acid
4-Amino-1-naphthalenesulfonic acid (CAS 84-86-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3S and a molecular weight of 223.24800 g/mol. Key properties include a melting point of ≥300 °C(lit.), a boiling point of 434ºC and a density of 1.67. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 84-86-6
- Jingsj CID
- J-1103790-4
- Molecular Formula
- C10H9NO3S
- Molecular Weight
- 223.24800 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ≥300 °C(lit.) |
|---|---|
| Boiling Point | 434ºC |
| Density | 1.67 |
| Exact Mass | 223.03000 |
| PSA | 88.77000 |
| LogP | 3.33070 |
| Refractive Index | 1.713 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2921450090 |
|---|---|
| Summary | 2921450090 1-naphthylamine (α-naphthylamine), 2-naphthylamine (β-naphthylamine) and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Amino-1-naphthalenesulfonic acid?
The CAS number of 4-Amino-1-naphthalenesulfonic acid is 84-86-6.
What are the molecular formula and molecular weight of 4-Amino-1-naphthalenesulfonic acid?
4-Amino-1-naphthalenesulfonic acid has molecular formula C10H9NO3S and molecular weight 223.24800 g/mol.
Is 4-Amino-1-naphthalenesulfonic acid hazardous?
4-Amino-1-naphthalenesulfonic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 4-Amino-1-naphthalenesulfonic acid?
For 4-Amino-1-naphthalenesulfonic acid, Upstream Products: 1-Naphthylamine, 1-naphthylamine-8-sulfonic acid, 1-Nitronaphthalene; Downstream Products: Martius Yellow, N-Phenyl-1-naphthylamine, 1-Naphthol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Amino-1-naphthalenesulfonic acid (CAS 84-86-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1103790-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.