5-Methoxy-2-methyl-1,3-benzoselenazole
5-甲氧基-2-甲基苯并硒唑
Also known as: 5-Methoxy-2-methylbenzoselenazole, 5-Methoxy-2-methylbenzselenazole, 2-Methyl-5-methoxybenzoselenazole, Benzoselenazole, 5-methoxy-2-methyl-, NSC 366221, 5-Methoxy-2-methyl-1,3-benzoselenazole
5-Methoxy-2-methyl-1,3-benzoselenazole (CAS 2946-17-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H9NOSe and a molecular weight of 226.134 g/mol. It is also known as 5-Methoxy-2-methylbenzoselenazole, 5-Methoxy-2-methylbenzselenazole and 2-Methyl-5-methoxybenzoselenazole. Key properties include a melting point of 22°C(凝固点), a boiling point of 311.3±0.0 °C at 760 mmHg, a density of 1.491 g/mL at 25 °C(lit.) and a flash point of 122.4±19.8 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H331 — Toxic if inhaled and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2946-17-0
- Jingsj CID
- J-40102-7
- Molecular Formula
- C9H9NOSe
- Chinese Name
- 5-甲氧基-2-甲基苯并硒唑
- Molecular Weight
- 226.134 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 22°C(凝固点) |
|---|---|
| Boiling Point | 311.3±0.0 °C at 760 mmHg |
| Density | 1.491 g/mL at 25 °C(lit.) |
| Flash Point | 122.4±19.8 °C |
| Exact Mass | 226.984940 |
| PSA | 22.12000 |
| LogP | 1.98 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | n20/D 1.639(lit.) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H373 — May cause damage to organs through prolonged exposure
- H410 — Very toxic to aquatic life with long lasting effects
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 5-Methoxy-2-methyl-1,3-benzoselenazole?
The CAS number of 5-Methoxy-2-methyl-1,3-benzoselenazole is 2946-17-0.
What are the molecular formula and molecular weight of 5-Methoxy-2-methyl-1,3-benzoselenazole?
5-Methoxy-2-methyl-1,3-benzoselenazole has molecular formula C9H9NOSe and molecular weight 226.134 g/mol.
Is 5-Methoxy-2-methyl-1,3-benzoselenazole hazardous?
5-Methoxy-2-methyl-1,3-benzoselenazole has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H331 — Toxic if inhaled; H373 — May cause damage to organs through prolonged exposure.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methoxy-2-methyl-1,3-benzoselenazole (CAS 2946-17-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40102-7 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.