5-Amino-1-naphthol-3-sulfonic Acid Hydrate
Also known as: 5-Amino-1-naphthol-3-sulfonic acid, 8-Amino-4-hydroxy-2-naphthalenesulfonic acid, 8-Amino-4-hydroxynaphthalene-2-sulfonic acid, 8-Amino-4-hydroxynaphthalene-2-sulphonic acid, 1-Amino-5-naphthol-7-sulfonic acid, M Acid, M Acid Hydrate, 8-azanyl-4-hydroxy-naphthalene-2-sulfonic acid, EINECS 207-700-7, MFCD00035712
5-Amino-1-naphthol-3-sulfonic Acid Hydrate (CAS 489-78-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9NO4S and a molecular weight of 239.24800 g/mol. Key properties include a melting point of −140 °C, a boiling point of −6.9 °C(lit.), a density of 0.5879 and a flash point of -80 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 489-78-1
- Jingsj CID
- J-8561-0
- Molecular Formula
- C10H9NO4S
- Molecular Weight
- 239.24800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −140 °C |
|---|---|
| Boiling Point | −6.9 °C(lit.) |
| Density | 0.5879 |
| Flash Point | -80 °C |
| Exact Mass | 239.02500 |
| PSA | 109.00000 |
| LogP | 3.03630 |
| Additional Property | 2 (vs air) |
| Refractive Index | 1.3811 |
| Additional Property | -140.34℃ |
Customs & Trade Information
| HS Code | 2922299090 |
|---|---|
| Summary | 2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 5-Amino-1-naphthol-3-sulfonic Acid Hydrate?
The CAS number of 5-Amino-1-naphthol-3-sulfonic Acid Hydrate is 489-78-1.
What are the molecular formula and molecular weight of 5-Amino-1-naphthol-3-sulfonic Acid Hydrate?
5-Amino-1-naphthol-3-sulfonic Acid Hydrate has molecular formula C10H9NO4S and molecular weight 239.24800 g/mol.
What are the upstream and downstream products of 5-Amino-1-naphthol-3-sulfonic Acid Hydrate?
For 5-Amino-1-naphthol-3-sulfonic Acid Hydrate, Upstream Products: N-(1-Naphthyl)acetamide, 5-Amino-1-naphthalenesulfonic acid; Downstream Products: 3-Hydroxy-2-methylbenzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Amino-1-naphthol-3-sulfonic Acid Hydrate (CAS 489-78-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8561-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.