1-Naphthalenesulfonic acid
Also known as: Naphthalene-1-sulfonic acid, α-Naphthalenesulfonic acid, 1-Naphthylsulfonic acid, Naphthalene-1-sulphonic acid, 1-Sulfonaphthalene
1-Naphthalenesulfonic acid (CAS 85-47-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8O3S and a molecular weight of 208.234 g/mol. Key properties include a melting point of 77-79 °C(lit.), a boiling point of 392ºC, a density of 1.4±0.1 g/cm3 and a flash point of 380.2ºC. It is classified under GHS with signal word Danger and hazard statements H290 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 85-47-2
- Jingsj CID
- J-31614-3
- Molecular Formula
- C10H8O3S
- Molecular Weight
- 208.234 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 77-79 °C(lit.) |
|---|---|
| Boiling Point | 392ºC |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 380.2ºC |
| Exact Mass | 208.019409 |
| PSA | 62.75000 |
| LogP | 1.70 |
| Refractive Index | 1.670 |
| Additional Property | freely soluble |
GHS Safety & Compliance
- H290
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2904100000 |
|---|---|
| Summary | 2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-Naphthalenesulfonic acid?
The CAS number of 1-Naphthalenesulfonic acid is 85-47-2.
What are the molecular formula and molecular weight of 1-Naphthalenesulfonic acid?
1-Naphthalenesulfonic acid has molecular formula C10H8O3S and molecular weight 208.234 g/mol.
Is 1-Naphthalenesulfonic acid hazardous?
1-Naphthalenesulfonic acid has GHS signal word Danger and hazard statements H290; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 1-Naphthalenesulfonic acid?
For 1-Naphthalenesulfonic acid, Upstream Products: Naphthalene, 1-Naphthalenesulfonyl chloride, Sodium 1-naphthalenesulfonate; Downstream Products: Naphthalene-2-sulfonic acid, Naphthalene-2,7-disulfonic acid, 1-Iodonaphthalene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Naphthalenesulfonic acid (CAS 85-47-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31614-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.