Triethyl 4-phosphonocrotonate

4-膦酰丁烯酸三乙脂

Also known as: EINECS 243-748-5, Einecs 243-748-5, TRIETHYL-4-PHOSPONOCROTONATE, ethyl 2-(diethoxyphosphinyl)but-2-enoate, Tthyl 2-(diethoxyphosphinyl)but-2-enoate, Ethyl (2E)-4-(diethoxyphosphoryl)-2-butenoate, 4-(Diethoxyphosphinyl)-2-butenoic acid ethyl ester, 2-Butenoic acid, 2-(diethoxyphosphinyl)-, ethyl ester, [3-(Ethoxycarbonyl)allyl]phosphonic acid diethyl ester, 4-Phosphonocrotonic acid triethyl ester~Triethyl trans-4-phosphono-2-butenoate

Triethyl 4-phosphonocrotonate (CAS 20345-62-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H19O5P and a molecular weight of 250.22900 g/mol. It is also known as EINECS 243-748-5, Einecs 243-748-5 and TRIETHYL-4-PHOSPONOCROTONATE. Key properties include a boiling point of 327.3ºC at 760mmHg, a density of 1.1g/cm3 and a flash point of 165.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

20345-62-4

Jingsj CID

J-13236-5

Molecular Formula

C₁₀H₁₉O₅P

Chinese Name

4-膦酰丁烯酸三乙脂

Molecular Weight

250.22900 g/mol

Category

Organic Acids

Last updated

8/21/2026