2-Methyloctane
Also known as: 2-METHYLOCTANE, 2-METHYLOCTANE 99+%, 2-Methyl-octan, 2-Methyloctane>2-METHYLOCTANE ISO 9001：2015 REACH, 2-methyl-octane, 2-methyloctane, 6Y1&1, EINECS 221-748-6, Isononane, MFCD00027307, Octane, 2-methyl-, dimethylheptan, isopropylhexane, octane,2-methyl, octane,2-methyl-
2-Methyloctane (CAS 3221-61-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H20 and a molecular weight of 128.255 g/mol. Key properties include a melting point of -80ºC, a boiling point of 143.3±3.0 °C at 760 mmHg, a density of 0.7±0.1 g/cm3 and a flash point of 25.2±10.3 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3221-61-2
- Jingsj CID
- J-32433-5
- Molecular Formula
- C9H20
- Molecular Weight
- 128.255 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -80ºC |
|---|---|
| Boiling Point | 143.3±3.0 °C at 760 mmHg |
| Density | 0.7±0.1 g/cm3 |
| Flash Point | 25.2±10.3 °C |
| Exact Mass | 128.156494 |
| LogP | 5.35 |
| Vapor Pressure | 6.7±0.1 mmHg at 25°C |
| Refractive Index | 1.407 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2901100000 |
|---|---|
| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Methyloctane?
The CAS number of 2-Methyloctane is 3221-61-2.
What are the molecular formula and molecular weight of 2-Methyloctane?
2-Methyloctane has molecular formula C9H20 and molecular weight 128.255 g/mol.
Is 2-Methyloctane hazardous?
2-Methyloctane has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
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-Methyloctane (CAS 3221-61-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32433-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.