Skip to main content
Jingsj
.mol.sdf

Triphenylarsine oxide

Also known as: Triphenylarsine monoxide, Triphenylarsenic oxide, NSC 12673, (C6H5)3As=O, diphenylarsorylbenzene

Triphenylarsine oxide (CAS 1153-05-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H15AsO and a molecular weight of 322.23300 g/mol. Key properties include a melting point of 191-193ºC(lit.), a boiling point of 468.4ºC at 760mmHg and a flash point of 207.4ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H331 — Toxic if inhaled and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1153-05-5
Jingsj CID
J-13873-8
Molecular Formula
C18H15AsO
Molecular Weight
322.23300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point191-193ºC(lit.)
Boiling Point468.4ºC at 760mmHg
Flash Point207.4ºC
Exact Mass322.03400
PSA17.07000
LogP2.08400
Vapor Pressure1.68E-08mmHg at 25°C

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H331 — Toxic if inhaled
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Triphenylarsine oxide?

The CAS number of Triphenylarsine oxide is 1153-05-5.

What are the molecular formula and molecular weight of Triphenylarsine oxide?

Triphenylarsine oxide has molecular formula C18H15AsO and molecular weight 322.23300 g/mol.

Is Triphenylarsine oxide hazardous?

Triphenylarsine oxide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H331 — Toxic if inhaled; H410 — Very toxic to aquatic life with long lasting effects.

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

Last updated:

How to cite: Jingsj. "Triphenylarsine oxide (CAS 1153-05-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13873-8 (accessed 2026-11-09).

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