Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate

2-(4-氧代-3,4-二氢酞嗪-1-基)乙酸乙酯

Also known as: 1-Phthalazineaceticacid, 3,4-dihydro-4-oxo-, ethyl ester, Ethyl 3,4-dihydro-4-oxo-1-phthalazineacetate, Ethyl 4-oxo-3H-phthalazin-1-ylacetate, ethyl 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetate, ethyl 2-(4-oxo-3H-phthalazin-1-yl)acetate, NSC 408028

Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate (CAS 25947-13-1) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O3 and a molecular weight of 232.23500 g/mol. It is also known as 1-Phthalazineaceticacid, 3,4-dihydro-4-oxo-, ethyl ester, Ethyl 3,4-dihydro-4-oxo-1-phthalazineacetate and Ethyl 4-oxo-3H-phthalazin-1-ylacetate. Key properties include a boiling point of 472.9ºC at 760 mmHg, a density of 1.3 g/cm3 and a flash point of 239.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25947-13-1
Jingsj CID
J-1139689-7
Molecular Formula
C12H12N2O3
Chinese Name
2-(4-氧代-3,4-二氢酞嗪-1-基)乙酸乙酯
Molecular Weight
232.23500 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point472.9ºC at 760 mmHg
Density1.3 g/cm3
Flash Point239.8ºC

Frequently Asked Questions

What is the CAS number of Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate?

The CAS number of Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate is 25947-13-1.

What are the molecular formula and molecular weight of Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate?

Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate has molecular formula C12H12N2O3 and molecular weight 232.23500 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl (4-oxo-3,4-dihydrophthalazin-1-yl)acetate (CAS 25947-13-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1139689-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.