5-Ethyl-2-methylpyridine
Also known as: 2-Methyl-5-ethylpyridine, 2-Picoline,5-ethyl, 3-Ethyl-6-methylpyridine, 5-Ethyl-2-picoline, 5-ethyl-2-methyl-pyridine, Aldehydecollidine, Aldehydine, Aldehydkollidin, EINECS 203-250-0, Ethyl-5 methyl-2 pyridine, FEMA 3546, FEMA NUMBER 3546, MFCD00006344, Pyridine, 5-ethyl-2-methyl-, Pyridine,5-ethyl-2-methyl, T6NJ B1 E2, 5-ETHYL-2-METHYL PYRIDINE(MEP)
5-Ethyl-2-methylpyridine (CAS 104-90-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11N and a molecular weight of 121.180 g/mol. Key properties include a melting point of -70.9 °C, a boiling point of 176.0±9.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 66.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 104-90-5
- Jingsj CID
- J-1402874-1
- Molecular Formula
- C8H11N
- Molecular Weight
- 121.180 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -70.9 °C |
|---|---|
| Boiling Point | 176.0±9.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 66.1±0.0 °C |
| Exact Mass | 121.089149 |
| PSA | 12.89000 |
| LogP | 2.18 |
| Additional Property | 4.2 (vs air) |
| Vapor Pressure | 1.5±0.3 mmHg at 25°C |
| Refractive Index | 1.500 |
| Additional Property | practically insoluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 5-Ethyl-2-methylpyridine?
The CAS number of 5-Ethyl-2-methylpyridine is 104-90-5.
What are the molecular formula and molecular weight of 5-Ethyl-2-methylpyridine?
5-Ethyl-2-methylpyridine has molecular formula C8H11N and molecular weight 121.180 g/mol.
Is 5-Ethyl-2-methylpyridine hazardous?
5-Ethyl-2-methylpyridine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.
What are the upstream and downstream products of 5-Ethyl-2-methylpyridine?
For 5-Ethyl-2-methylpyridine, Upstream Products: Acetylene, Paraldehyde, Methyl Vinyl Ether; Downstream Products: 2,4,6-Trichloropyrimidine, Pyridine, 2-Methylpyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Ethyl-2-methylpyridine (CAS 104-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1402874-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.