3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one

3-(二乙氧基磷酰氧基)-1,2,3-苯并三嗪-4-酮

Also known as: DEPBT, 3-(Diethoxyphosphoryloxy)-1,2,3-benzotrizin-4(3H)-one, Diethyl (4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl) phosphate, Diethyl 4-oxo-1,2,3-benzotriazin-3-yl phosphate, 3-[(Diethoxyphosphoryl)oxy]-1,2,3-benzotriazin-4(3H)-one

3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one (CAS 165534-43-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H14N3O5P and a molecular weight of 299.220 g/mol. It is also known as DEPBT, 3-(Diethoxyphosphoryloxy)-1,2,3-benzotrizin-4(3H)-one and Diethyl (4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl) phosphate. Key properties include a melting point of 75-77°C, a boiling point of 382.1±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 184.9±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
165534-43-0
Jingsj CID
J-30582-8
Molecular Formula
C11H14N3O5P
Chinese Name
3-(二乙氧基磷酰氧基)-1,2,3-苯并三嗪-4-酮
Molecular Weight
299.220 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point75-77°C
Boiling Point382.1±25.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point184.9±23.2 °C

Frequently Asked Questions

What is the CAS number of 3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one?

The CAS number of 3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one is 165534-43-0.

What are the molecular formula and molecular weight of 3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one?

3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one has molecular formula C11H14N3O5P and molecular weight 299.220 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one (CAS 165534-43-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30582-8 (accessed 2026-10-23).

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