15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol]

15-冠-4[4-(2,4-二硝基苯偶氮)苯酚]

Also known as: 5-(2,4-Dinitrophenylazo)-2-hydroxy-1,3-xylylene-15-crown 4-ether, 15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol], 5-(2,4-Dinitrophenylazo)-2-hydroxy-1,3-xylylene-15-crown-4-ether

15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol] (CAS 81238-57-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H22N4O9 and a molecular weight of 462.410 g/mol. It is also known as 5-(2,4-Dinitrophenylazo)-2-hydroxy-1,3-xylylene-15-crown 4-ether and 5-(2,4-Dinitrophenylazo)-2-hydroxy-1,3-xylylene-15-crown-4-ether. Key properties include a boiling point of 669.3±65.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 358.6±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 81238-57-5
Jingsj CID: J-1991774-8
Molecular Formula: C₂₀H₂₂N₄O₉
Chinese Name: 15-冠-4[4-(2,4-二硝基苯偶氮)苯酚]
Molecular Weight: 462.410 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	669.3±65.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	358.6±34.3 °C

Frequently Asked Questions

What is the CAS number of 15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol]?

The CAS number of 15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol] is 81238-57-5.

What are the molecular formula and molecular weight of 15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol]?

15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol] has molecular formula C20H22N4O9 and molecular weight 462.410 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol] (CAS 81238-57-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991774-8 (accessed 2026-10-25).

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