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tert-Butyl nitrite

Also known as: t-Butyl nitrite, t-BuONO, Nitrous acid tert-butyl ester, Nitrous acid, 1,1-dimethylethyl ester, 1,1-Dimethylethyl nitrite, 2-Methyl-2-propyl nitrite, 2-methyl-2-nitritopropane, alpha,alpha-Dimethylethyl nitrite, tert-Butyl nitrite 90%, tert-Butyl nitrite, technical, 90%, MFCD00002055, EINECS 208-757-0

tert-Butyl nitrite (CAS 540-80-7) 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 63.5±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -21.4±13.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
540-80-7
Jingsj CID
J-1516389-0
Molecular Formula
C4H9NO2
Molecular Weight
103.120 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point63.5±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point-21.4±13.2 °C
Exact Mass103.063332
PSA38.66000
LogP1.74
Vapor Pressure183.3±0.1 mmHg at 25°C
Refractive Index1.402
Additional Propertyslightly soluble

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2920909090
Summary2920909090 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 tert-Butyl nitrite?

The CAS number of tert-Butyl nitrite is 540-80-7.

What are the molecular formula and molecular weight of tert-Butyl nitrite?

tert-Butyl nitrite has molecular formula C4H9NO2 and molecular weight 103.120 g/mol.

Is tert-Butyl nitrite hazardous?

tert-Butyl nitrite has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H332 — Harmful if inhaled.

What are the upstream and downstream products of tert-Butyl nitrite?

For tert-Butyl nitrite, Upstream Products: tert-Butanol, tert-butyl chloride, 2-Bromo-2-methylpropane; Downstream Products: 3-Bromo-5-chloropyrazine-2-carbonitrile, 2-Chloro-1,3-thiazole-5-carbonitrile, Ethyl 2-chlorooxazole-4-carboxylate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "tert-Butyl nitrite (CAS 540-80-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516389-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.