1,4-Benzoquinone dioxime
Also known as: p-Benzoquinone dioxime, p-Quinone dioxime, 1,4-Benzoquinone dioxime, 2,5-Cyclohexadiene-1,4-dione dioxime, 1,4-Cyclohexadienedione dioxime, 1,4-Quinone dioxime, (1E,4E)-N,N'-Dihydroxy-2,5-cyclohexadiene-1,4-diimine, (1Z,4Z)-N,N'-Dihydroxy-2,5-cyclohexadiene-1,4-diimine, N-(4-nitrosophenyl)hydroxylamine, p-Benzoquinonedioxime, PQD, QDO
1,4-Benzoquinone dioxime (CAS 105-11-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H6N2O2 and a molecular weight of 138.124 g/mol. Key properties include a melting point of 243 °C (dec.)(lit.), a boiling point of 303.0±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 182.5±17.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 105-11-3
- Jingsj CID
- J-6359-3
- Molecular Formula
- C6H6N2O2
- Molecular Weight
- 138.124 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 243 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 303.0±42.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 182.5±17.1 °C |
| Exact Mass | 138.042923 |
| PSA | 65.18000 |
| LogP | 1.89 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.594 |
| Additional Property | <0.01 g/100 mL at 22.5 ºC |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2928000090 |
|---|---|
| Summary | 2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,4-Benzoquinone dioxime?
The CAS number of 1,4-Benzoquinone dioxime is 105-11-3.
What are the molecular formula and molecular weight of 1,4-Benzoquinone dioxime?
1,4-Benzoquinone dioxime has molecular formula C6H6N2O2 and molecular weight 138.124 g/mol.
Is 1,4-Benzoquinone dioxime hazardous?
1,4-Benzoquinone dioxime has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 1,4-Benzoquinone dioxime?
For 1,4-Benzoquinone dioxime, Upstream Products: 2,5-Cyclohexadiene-1,4-dione, monoxime, Hydroquinone, 1,4-Benzoquinone; Downstream Products: 1,4-Dinitrosobenzene, p-Phenylenediamine, 1-Ethoxy-4-nitrobenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Benzoquinone dioxime (CAS 105-11-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6359-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.