1,4-Naphthalenedicarboxylic acid
Also known as: 1,4-naphthalenedicarboxylic acid, naphthalene-1,4-dicarboxylic acid, 1,4-naphthalic acid, KCB acid
1,4-Naphthalenedicarboxylic acid (CAS 605-70-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H8O4 and a molecular weight of 216.189 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 490.2±28.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 264.3±20.5 °C. 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 Nov 3, 2026.
- CAS No.
- 605-70-9
- Jingsj CID
- J-9628-6
- Molecular Formula
- C12H8O4
- Molecular Weight
- 216.189 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 | 490.2±28.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 264.3±20.5 °C |
| Exact Mass | 216.042252 |
| PSA | 74.60000 |
| LogP | 3.23 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.708 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2917399090 |
|---|---|
| Summary | 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。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 1,4-Naphthalenedicarboxylic acid?
The CAS number of 1,4-Naphthalenedicarboxylic acid is 605-70-9.
What are the molecular formula and molecular weight of 1,4-Naphthalenedicarboxylic acid?
1,4-Naphthalenedicarboxylic acid has molecular formula C12H8O4 and molecular weight 216.189 g/mol.
Is 1,4-Naphthalenedicarboxylic acid hazardous?
1,4-Naphthalenedicarboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1,4-Naphthalenedicarboxylic acid?
For 1,4-Naphthalenedicarboxylic acid, Upstream Products: 1,4-Naphthalenedicarbonitrile, 1,4-Dibromonaphthalene, 1,4-Dimethylnaphthalene; Downstream Products: 1,4,5,8-Naphthalenetetracarboxdiimide, Fluorescent Brightener KCB, 1,4-Naphthalenedimethanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Naphthalenedicarboxylic acid (CAS 605-70-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9628-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.