4-(4-Nitrophenylazo)-1-naphthol
Also known as: Magneson II, Magneson 2, 4-(p-Nitrophenylazo)-1-naphthol, 4-[(4-Nitrophenyl)azo]-1-naphthol, 4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol, 1-Naphthalenol, 4-[(E)-2-(4-nitrophenyl)diazenyl]-, α-Naphthol Magneson, EINECS 226-129-4, MFCD00003975
4-(4-Nitrophenylazo)-1-naphthol (CAS 5290-62-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C16H11N3O3 and a molecular weight of 293.277 g/mol. Key properties include a melting point of 270 °C (dec.)(lit.), a boiling point of 554.3±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 289.0±25.9 °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 Aug 21, 2026.
- CAS No.
- 5290-62-0
- Jingsj CID
- J-1343555-6
- Molecular Formula
- C16H11N3O3
- Molecular Weight
- 293.277 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 270 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 554.3±35.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 289.0±25.9 °C |
| Exact Mass | 293.080048 |
| PSA | 90.77000 |
| LogP | 4.85 |
| Vapor Pressure | 0.0±1.6 mmHg at 25°C |
| Refractive Index | 1.673 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2927000090 |
|---|---|
| Summary | 2927000090 other diazo-, azo- or azoxy-compounds。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 4-(4-Nitrophenylazo)-1-naphthol?
The CAS number of 4-(4-Nitrophenylazo)-1-naphthol is 5290-62-0.
What are the molecular formula and molecular weight of 4-(4-Nitrophenylazo)-1-naphthol?
4-(4-Nitrophenylazo)-1-naphthol has molecular formula C16H11N3O3 and molecular weight 293.277 g/mol.
Is 4-(4-Nitrophenylazo)-1-naphthol hazardous?
4-(4-Nitrophenylazo)-1-naphthol 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 4-(4-Nitrophenylazo)-1-naphthol?
For 4-(4-Nitrophenylazo)-1-naphthol, Upstream Products: 1-Naphthol, N,N-Dimethyl-4-nitroaniline, acetic acid; Downstream Products: 4-Amino-1-naphthol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(4-Nitrophenylazo)-1-naphthol (CAS 5290-62-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1343555-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.