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Lithium phenylacetylide

Also known as: (Phenylethynyl)lithium, 1-Lithio-2-(phenyl)ethyne, 1-Lithio-2-phenylacetylene, 1-Lithio-2-phenylethyne, 1-Phenyl-2-lithioethyne, Lithium ethynylbenzene, Lithium phenylacetylide solution, Phenylethynyllithium, lithium,ethynylbenzene

Lithium phenylacetylide (CAS 4440-01-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5Li and a molecular weight of 108.06600 g/mol. Key properties include a density of 0.91 g/mL at 25ºC and a flash point of -17.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H261 and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4440-01-1
Jingsj CID
J-1991653-4
Molecular Formula
C8H5Li
Molecular Weight
108.06600 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Density0.91 g/mL at 25ºC
Flash Point-17.2 °C
Exact Mass108.05500
LogP1.54490

GHS Safety & Compliance

Flammable / Corrosion / Irritant / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H261
  • H302 — Harmful if swallowed
  • H314 — Causes severe skin burns and eye damage
  • H335 — May cause respiratory irritation
  • H351 — Suspected of causing cancer

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 Lithium phenylacetylide?

The CAS number of Lithium phenylacetylide is 4440-01-1.

What are the molecular formula and molecular weight of Lithium phenylacetylide?

Lithium phenylacetylide has molecular formula C8H5Li and molecular weight 108.06600 g/mol.

Is Lithium phenylacetylide hazardous?

Lithium phenylacetylide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H261; H302 — Harmful if swallowed.

What are the upstream and downstream products of Lithium phenylacetylide?

For Lithium phenylacetylide, Upstream Products: Phenylacetylene, n-Butyllithium, Dichlorodimethylsilane; Downstream Products: Lithium trifluoromethanesulfonate, 1-Pentyn-1-ylbenzene, Phenylethynyltri-n-butyltin.

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

Last updated:

How to cite: Jingsj. "Lithium phenylacetylide (CAS 4440-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991653-4 (accessed 2026-11-07).

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