Butyl nitrite
Also known as: 1-Butyl nitrite, N-Butyl nitrite, Nitrous acid butyl ester, Nitrous acid, n-butyl ester, Butyl ester of nitrous acid, n-Butyl nitrite, NBN, NCI-C56553, butylnitrites, n-C4H9ONO
Butyl nitrite (CAS 544-16-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9NO2 and a molecular weight of 103.120 g/mol. Key properties include a boiling point of 78.8±3.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -13.3±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 544-16-1
- Jingsj CID
- J-44773-4
- Molecular Formula
- C4H9NO2
- Molecular Weight
- 103.120 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 78.8±3.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | -13.3±0.0 °C |
| Exact Mass | 103.063332 |
| PSA | 38.66000 |
| LogP | 2.11 |
| Vapor Pressure | 101.0±0.1 mmHg at 25°C |
| Refractive Index | 1.416 |
| Additional Property | SLIGHTLY SOLUBLE |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
Customs & Trade Information
| HS Code | 2920909090 |
|---|---|
| Summary | 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。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 Butyl nitrite?
The CAS number of Butyl nitrite is 544-16-1.
What are the molecular formula and molecular weight of Butyl nitrite?
Butyl nitrite has molecular formula C4H9NO2 and molecular weight 103.120 g/mol.
Is Butyl nitrite hazardous?
Butyl nitrite has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H331 — Toxic if inhaled.
What are the upstream and downstream products of Butyl nitrite?
For Butyl nitrite, Upstream Products: 1-Butanol, 1-Bromobutane, 1-Iodobutane; Downstream Products: 4-tert-Butyl-2-nitrophenol, 1-tert-Butyl-4-chlorobenzene, Butyraldehyde Dibutyl Acetal.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Butyl nitrite (CAS 544-16-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44773-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.