Magneson I
Also known as: 4-(4-Nitrophenylazo)resorcinol, Azoviolet, p-Nitrobenzeneazoresorcinol, 4-[(4-nitrophenyl)diazenyl]benzene-1,3-diol, Magneson, p-Diazoviolet, p-Diazviolet, 4-(4-Nitrophenyl)azoresorcinol
Magneson I (CAS 74-39-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H9N3O4 and a molecular weight of 259.218 g/mol. Key properties include a melting point of 195-200 °C (dec.)(lit.), a boiling point of 509.2±33.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 261.7±25.4 °C. It is listed by 1 supplier, from 1.44 to 2.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 74-39-5
- Jingsj CID
- J-1462491-7
- Molecular Formula
- C12H9N3O4
- Molecular Weight
- 259.218 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | AR 25g | ¥36.00 | $0.22 /gBest ¥1.44/g CNY | CN China MOQ 25g | |
In Stock | AR 10g | ¥20.00 | $0.3 /g ¥2.00/g CNY | CN China MOQ 10g |
Physicochemical Properties
| Melting Point | 195-200 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 509.2±33.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 261.7±25.4 °C |
| Exact Mass | 259.059296 |
| PSA | 111.00000 |
| LogP | 2.82 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.666 |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
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 Magneson I?
The CAS number of Magneson I is 74-39-5.
What are the molecular formula and molecular weight of Magneson I?
Magneson I has molecular formula C12H9N3O4 and molecular weight 259.218 g/mol.
Which suppliers offer Magneson I?
1 supplier(s) listed; reference unit price ¥1.44–2.00 /g.
What are the upstream and downstream products of Magneson I?
For Magneson I, Upstream Products: Resorcinol, 1,2,4-Benzenetriol, 4-Nitrophenylhydrazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Magneson I (CAS 74-39-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1462491-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.