Pirenoxine

吡诺克辛

Also known as: 1-Hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid, 1,5-Dioxo-4H-pyrido[3,2-a]phenoxazine-3-carboxylic acid, Catalin, Bernetine, Pirenoxinum, Pirfenoxone, 1-Hydroxy-5H-pyrido[3,2-a]phenoxazin-5-one-3-carboxylic acid

Pirenoxine (CAS 1043-21-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H8N2O5 and a molecular weight of 308.25 g/mol. It is also known as 1-Hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid, 1,5-Dioxo-4H-pyrido[3,2-a]phenoxazine-3-carboxylic acid and Catalin. Key properties include a melting point of 247-248ºC, a boiling point of 515.8ºC at 760mmHg, a density of 1.7g/cm3 and a flash point of 265.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1043-21-6
Jingsj CID
J-15601-3
Molecular Formula
C16H8N2O5
Chinese Name
吡诺克辛
Molecular Weight
308.25 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point247-248ºC
Boiling Point515.8ºC at 760mmHg
Density1.7g/cm3
Flash Point265.7ºC

Frequently Asked Questions

What is the CAS number of Pirenoxine?

The CAS number of Pirenoxine is 1043-21-6.

What are the molecular formula and molecular weight of Pirenoxine?

Pirenoxine has molecular formula C16H8N2O5 and molecular weight 308.25 g/mol.

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

Last updated:

How to cite: Jingsj. "Pirenoxine (CAS 1043-21-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15601-3 (accessed 2026-10-23).

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