1,4-Benzoquinone
Also known as: 1,3-dibromothiophene, 1,4-Benzochinon, 1,4-Benzoquine, 1,4-Cyclohexadiene dioxide, 1,4-Cyclohexadienedione, 1,4-Dihydrobenzoquinone, 1,4-benzo-quinone, 1,4-benzoquinone, 2,5-Cyclohexadiene-1,4-dione, 2,5-bromothiophene, 2,5-dibromo thiophene, 2,5-dibromothiophen, 2,5-dibromothiphene, Cyclohexadiene-1,4-dione, EINECS 203-405-2, MFCD00001591, Thiophene,2,5-dibromo, Thiophene,5-dibromo, benzoquinone, p-Benzochinon
1,4-Benzoquinone (CAS 106-51-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H4O2 and a molecular weight of 108.095 g/mol. Key properties include a melting point of 113-115 °C(lit.), a boiling point of 174.0±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 59.3±17.4 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H331 — Toxic if inhaled and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 106-51-4
- Jingsj CID
- J-1335286-8
- Molecular Formula
- C6H4O2
- Molecular Weight
- 108.095 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 113-115 °C(lit.) |
|---|---|
| Boiling Point | 174.0±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 59.3±17.4 °C |
| Exact Mass | 108.021126 |
| PSA | 34.14000 |
| LogP | 0.26 |
| Additional Property | 3.73 (vs air) |
| Vapor Pressure | 1.2±0.3 mmHg at 25°C |
| Refractive Index | 1.543 |
| Additional Property | 10 g/L (25 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H410 — Very toxic to aquatic life with long lasting effects
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 1,4-Benzoquinone?
The CAS number of 1,4-Benzoquinone is 106-51-4.
What are the molecular formula and molecular weight of 1,4-Benzoquinone?
1,4-Benzoquinone has molecular formula C6H4O2 and molecular weight 108.095 g/mol.
Is 1,4-Benzoquinone hazardous?
1,4-Benzoquinone has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H331 — Toxic if inhaled; H315 — Causes skin irritation.
What are the upstream and downstream products of 1,4-Benzoquinone?
For 1,4-Benzoquinone, Downstream Products: 1,4-Bis(2-ethylhexyloxy)benzene, 2-tert-Butyl-1,4-benzoquinone, 5,8-Dimethoxy-3,4-dihydro-1H-naphthalen-2-one.
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 (CAS 106-51-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335286-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.