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Selenophene

Also known as: MFCD00075487, SELENOPHENE, SELENOPHENE 99%, Selenacyclopentadiene, Selenofuran, Selenophene >Selenophene (6CI, 7CI, 8CI, 9CI, ACI), Selenophene, 99% 2.5GR, Selenophene,99%, selenacyclopentadiene, selenofuran, selenole, selenophen, selenophene

Selenophene (CAS 288-05-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H4Se and a molecular weight of 131.035 g/mol. Key properties include a melting point of -30ºC(lit.), a boiling point of 110.5±9.0 °C at 760 mmHg, a density of 1.423 g/mL at 25 °C(lit.) and a flash point of 20.6±18.7 °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.
288-05-1
Jingsj CID
J-1319404-2
Molecular Formula
C4H4Se
Molecular Weight
131.035 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-30ºC(lit.)
Boiling Point110.5±9.0 °C at 760 mmHg
Density1.423 g/mL at 25 °C(lit.)
Flash Point20.6±18.7 °C
Exact Mass131.947815
LogP1.49
Appearanceliquid
Vapor Pressure27.8±0.2 mmHg at 25°C
Refractive Indexn20/D 1.58(lit.)

GHS Safety & Compliance

Flammable / Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H331 — Toxic if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Selenophene?

The CAS number of Selenophene is 288-05-1.

What are the molecular formula and molecular weight of Selenophene?

Selenophene has molecular formula C4H4Se and molecular weight 131.035 g/mol.

Is Selenophene hazardous?

Selenophene 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 Selenophene?

For Selenophene, Upstream Products: Acetylene, Diethyl selenide, butadiene; Downstream Products: 7-Diethylamino-4-methylcoumarin, 1-buten-3-yne, Diacetylene.

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

Last updated:

How to cite: Jingsj. "Selenophene (CAS 288-05-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1319404-2 (accessed 2026-11-09).

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