2-Methoxypyrazine
Also known as: 2-Methoxypyrazine, Methoxypyrazine, Pyrazine, 2-methoxy-, Pyrazine, methoxy-, FEMA 3302, Methoxy-pyrazin
2-Methoxypyrazine (CAS 3149-28-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O and a molecular weight of 110.114 g/mol. Key properties include a boiling point of 153.6±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 45.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3149-28-8
- Jingsj CID
- J-20297-1
- Molecular Formula
- C5H6N2O
- Molecular Weight
- 110.114 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 153.6±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 45.6±0.0 °C |
| Exact Mass | 110.048012 |
| PSA | 35.01000 |
| LogP | 0.75 |
| Vapor Pressure | 4.2±0.2 mmHg at 25°C |
| Refractive Index | 1.495 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 29339990 |
|---|
Frequently Asked Questions
What is the CAS number of 2-Methoxypyrazine?
The CAS number of 2-Methoxypyrazine is 3149-28-8.
What are the molecular formula and molecular weight of 2-Methoxypyrazine?
2-Methoxypyrazine has molecular formula C5H6N2O and molecular weight 110.114 g/mol.
Is 2-Methoxypyrazine hazardous?
2-Methoxypyrazine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of 2-Methoxypyrazine?
For 2-Methoxypyrazine, Upstream Products: 2-Chloropyrazine, Sodium methoxide, Potassium methoxide; Downstream Products: 2-Methoxy-3-methylpyrazine, 2-Iodo-3-methoxypyrazine, 2-Amino-3-methoxypyrazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methoxypyrazine (CAS 3149-28-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20297-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.