2-Butanol
Also known as: sec-Butyl alcohol, sec-Butanol, butan-2-ol, 1-methyl-1-propanol, ethylmethylcarbinol, DL-sec-Butanol, (±)-2-butanol, 2-Butyl alcohol
2-Butanol (CAS 78-92-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H10O and a molecular weight of 74.122 g/mol. Key properties include a melting point of −115 °C(lit.), a boiling point of 96.6±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 26.7±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 78-92-2
- Jingsj CID
- J-33045-5
- Molecular Formula
- C4H10O
- Molecular Weight
- 74.122 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −115 °C(lit.) |
|---|---|
| Boiling Point | 96.6±3.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 26.7±0.0 °C |
| Exact Mass | 74.073166 |
| PSA | 20.23000 |
| LogP | 0.69 |
| Additional Property | 2.6 (vs air) |
| Vapor Pressure | 25.2±0.3 mmHg at 25°C |
| Refractive Index | 1.393 |
| Additional Property | 12.5 g/100 mL (20 ºc) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H336 — May cause drowsiness or dizziness
Customs & Trade Information
| HS Code | 2905142000 |
|---|---|
| Summary | HS: 2905142000. butan-2-ol. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tarrif:5.5%. general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Butanol?
The CAS number of 2-Butanol is 78-92-2.
What are the molecular formula and molecular weight of 2-Butanol?
2-Butanol has molecular formula C4H10O and molecular weight 74.122 g/mol.
Is 2-Butanol hazardous?
2-Butanol has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Butanol?
For 2-Butanol, Upstream Products: tert-Butanol, 1-Butene, 3-Butyn-2-ol; Downstream Products: Methyl 3-methoxypropanoate, (S)-(+)-2-Butanol, (R)-(-)-2-Butanol.
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-Butanol (CAS 78-92-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33045-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.