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3-Methyl-1-phenyl-2-phospholene 1-oxide

Also known as: 3-Methyl-1-phenyl-2-phospholene 1-oxide, 2,3-Dihydro-4-methyl-1-phenyl-1H-phosphole 1-oxide, 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, 1H-Phosphole, 2,3-dihydro-4-methyl-1-phenyl-, 1-oxide, 3-Methyl-1-phenyl-2-phospholene oxide, 4-Methyl-1-phenyl-2,3-dihydro-1H-1lambda5-phosphol-1-one, MPPO

3-Methyl-1-phenyl-2-phospholene 1-oxide (CAS 707-61-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H13OP and a molecular weight of 192.194 g/mol. Key properties include a melting point of 58-62 °C, a boiling point of 368.2±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 176.5±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H351 — Suspected of causing cancer and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
707-61-9
Jingsj CID
J-11267-7
Molecular Formula
C11H13OP
Molecular Weight
192.194 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point58-62 °C
Boiling Point368.2±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point176.5±23.2 °C
Exact Mass192.070404
PSA26.88000
LogP2.98250
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.541

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H351 — Suspected of causing cancer
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Methyl-1-phenyl-2-phospholene 1-oxide?

The CAS number of 3-Methyl-1-phenyl-2-phospholene 1-oxide is 707-61-9.

What are the molecular formula and molecular weight of 3-Methyl-1-phenyl-2-phospholene 1-oxide?

3-Methyl-1-phenyl-2-phospholene 1-oxide has molecular formula C11H13OP and molecular weight 192.194 g/mol.

Is 3-Methyl-1-phenyl-2-phospholene 1-oxide hazardous?

3-Methyl-1-phenyl-2-phospholene 1-oxide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H351 — Suspected of causing cancer; H412 — Harmful 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. "3-Methyl-1-phenyl-2-phospholene 1-oxide (CAS 707-61-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11267-7 (accessed 2026-11-07).

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