4-Amino-1-naphthalenesulfonic acid sodium salt hydrate
4-氨基-1-萘磺酸钠水合物
Also known as: 1-Naphthylamine-4-sulfonic acid sodium salt hydrate, Naphthionic acid sodium salt hydrate, Sodium 4-amino-1-naphthalenesulfonate hydrate, Sodium naphthionate hydrate, Sodium 1-naphthylamine-4-sulfonate
4-Amino-1-naphthalenesulfonic acid sodium salt hydrate (CAS 123333-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8NNaO3S and a molecular weight of 245.23000 g/mol. It is also known as 1-Naphthylamine-4-sulfonic acid sodium salt hydrate, Naphthionic acid sodium salt hydrate and Sodium 4-amino-1-naphthalenesulfonate hydrate. Key properties include a melting point of 280ºC (dec.)(lit.) and a density of 1.502g/cm3. 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.
- 123333-48-2
- Jingsj CID
- J-39974-2
- Molecular Formula
- C10H8NNaO3S
- Chinese Name
- 4-氨基-1-萘磺酸钠水合物
- Molecular Weight
- 245.23000 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 280ºC (dec.)(lit.) |
|---|---|
| Density | 1.502g/cm3 |
| Exact Mass | 245.01200 |
| PSA | 91.60000 |
| LogP | 2.98810 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate?
The CAS number of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate is 123333-48-2.
What are the molecular formula and molecular weight of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate?
4-Amino-1-naphthalenesulfonic acid sodium salt hydrate has molecular formula C10H8NNaO3S and molecular weight 245.23000 g/mol.
Is 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate hazardous?
4-Amino-1-naphthalenesulfonic acid sodium salt hydrate 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 and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Amino-1-naphthalenesulfonic acid sodium salt hydrate (CAS 123333-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39974-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.