1,6-Naphthyridine
Also known as: 1,6-Diazanaphthalene, Pyrido[4,3-b]pyridine, 1,6-Pyridopyridine, 6-Naphthyridine, [1,6]Naphthyridine
1,6-Naphthyridine (CAS 253-72-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6N2 and a molecular weight of 130.147 g/mol. Key properties include a melting point of 231-233°C, a boiling point of 267.3±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 118.3±11.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 253-72-5
- Jingsj CID
- J-18423-6
- Molecular Formula
- C8H6N2
- Molecular Weight
- 130.147 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 231-233°C |
|---|---|
| Boiling Point | 267.3±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 118.3±11.1 °C |
| Exact Mass | 130.053101 |
| PSA | 25.78000 |
| LogP | 0.59 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.653 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,6-Naphthyridine?
The CAS number of 1,6-Naphthyridine is 253-72-5.
What are the molecular formula and molecular weight of 1,6-Naphthyridine?
1,6-Naphthyridine has molecular formula C8H6N2 and molecular weight 130.147 g/mol.
Is 1,6-Naphthyridine hazardous?
1,6-Naphthyridine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,6-Naphthyridine (CAS 253-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18423-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.