3,5-Di-tert-butyl-1,2-benzoquinone

Also known as: 3,5-Di-tert-butyl-o-benzoquinone, DTBQ, 3,5-Di-tert-butylcyclohexa-3,5-diene-1,2-dione, 4,6-Di-tert-butyl-1,2-benzoquinone, NSC 149061

3,5-Di-tert-butyl-1,2-benzoquinone (CAS 3383-21-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H20O2 and a molecular weight of 220.307 g/mol. Key properties include a melting point of 112-114 °C(lit.), a boiling point of 302.7±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 120.6±6.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3383-21-9
Jingsj CID: J-2718-8
Molecular Formula: C₁₄H₂₀O₂
Molecular Weight: 220.307 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	112-114 °C(lit.)
Boiling Point	302.7±15.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	120.6±6.0 °C
Exact Mass	220.146332
PSA	34.14000
LogP	3.04
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.504

Customs & Trade Information

HS Code	2914690090
Summary	2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,5-Di-tert-butyl-1,2-benzoquinone?

The CAS number of 3,5-Di-tert-butyl-1,2-benzoquinone is 3383-21-9.

What are the molecular formula and molecular weight of 3,5-Di-tert-butyl-1,2-benzoquinone?

3,5-Di-tert-butyl-1,2-benzoquinone has molecular formula C14H20O2 and molecular weight 220.307 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3,5-Di-tert-butyl-1,2-benzoquinone (CAS 3383-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2718-8 (accessed 2026-11-06).

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