Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate

Also known as: Ethyl (triphenylphosphoranylidene)pyruvate, [2-(Ethoxycarbonyl)-2-oxoethylidene]triphenylphosphorane, 2-Ethoxycarbonyl-2-oxoethylidenetriphenylphosphorane, NSC 647346, [(Carboxycarbonyl)methylene]triphenylphosphorane ethyl ester

Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate (CAS 13321-61-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C23H21O3P and a molecular weight of 376.38500 g/mol. Key properties include a melting point of 175ºC (dec.)(lit.), a boiling point of 524.6ºC at 760mmHg, a density of 1.2g/cm3 and a flash point of 284.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 13321-61-4
Jingsj CID: J-5381-6
Molecular Formula: C₂₃H₂₁O₃P
Molecular Weight: 376.38500 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	175ºC (dec.)(lit.)
Boiling Point	524.6ºC at 760mmHg
Density	1.2g/cm3
Flash Point	284.1ºC
Exact Mass	376.12300
PSA	53.18000
LogP	2.91490
Vapor Pressure	4.23E-11mmHg at 25°C
Refractive Index	1.602

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate?

The CAS number of Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate is 13321-61-4.

What are the molecular formula and molecular weight of Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate?

Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate has molecular formula C23H21O3P and molecular weight 376.38500 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl 2-oxo-3-(triphenylphosphoranylidene)propanoate (CAS 13321-61-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5381-6 (accessed 2026-11-09).

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