8-Hydroxy-1,6-naphthalenedisulfonic acid
Also known as: 1-Naphthol-3,8-disulfonic acid, Epsilon acid, Andresen's acid, 8-Hydroxynaphthalene-1,6-disulphonic acid, Disulfo acid E, NSC 8628, 8-Hydroxy-1,6-naphthalenedisulfonic acid
8-Hydroxy-1,6-naphthalenedisulfonic acid (CAS 117-43-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8O7S2 and a molecular weight of 304.29600 g/mol. Key properties include a boiling point of 111 °C (0.2 mmHg), a density of 1.002 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 117-43-1
- Jingsj CID
- J-26854-2
- Molecular Formula
- C10H8O7S2
- Molecular Weight
- 304.29600 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 111 °C (0.2 mmHg) |
|---|---|
| Density | 1.002 g/mL at 25 °C(lit.) |
| Flash Point | >110.0 °C |
| Exact Mass | 303.97100 |
| PSA | 145.73000 |
| LogP | 3.20040 |
| Refractive Index | n20/D 1.5218(lit.) |
Customs & Trade Information
| HS Code | 2908999090 |
|---|---|
| Summary | 2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。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 8-Hydroxy-1,6-naphthalenedisulfonic acid?
The CAS number of 8-Hydroxy-1,6-naphthalenedisulfonic acid is 117-43-1.
What are the molecular formula and molecular weight of 8-Hydroxy-1,6-naphthalenedisulfonic acid?
8-Hydroxy-1,6-naphthalenedisulfonic acid has molecular formula C10H8O7S2 and molecular weight 304.29600 g/mol.
What are the upstream and downstream products of 8-Hydroxy-1,6-naphthalenedisulfonic acid?
For 8-Hydroxy-1,6-naphthalenedisulfonic acid, Upstream Products: 8-Aminonaphthalene-1,6-disulfonic acid, Water.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "8-Hydroxy-1,6-naphthalenedisulfonic acid (CAS 117-43-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26854-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.