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2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)-

颜料橙色4

Also known as: (4Z)-4-[(3-chlorophenyl)hydrazinylidene]-N-(2-methoxyphenyl)-3-oxonaphthalene-2-carboxamide, 4-[(3-Chlorophenyl)azo]-3-hydroxy-N-(2-methoxyphenyl)-2-naphthalenecarboxamide, Pigment Orange 4, C.I. Pigment Orange 4, EINECS 244-635-3, Helioecht Orange G

2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)- (CAS 21889-27-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C24H18ClN3O3 and a molecular weight of 431.87100 g/mol. It is also known as (4Z)-4-[(3-chlorophenyl)hydrazinylidene]-N-(2-methoxyphenyl)-3-oxonaphthalene-2-carboxamide, 4-[(3-Chlorophenyl)azo]-3-hydroxy-N-(2-methoxyphenyl)-2-naphthalenecarboxamide and Pigment Orange 4. Key property: a density of 1.31g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21889-27-0
Jingsj CID
J-1147518-7
Molecular Formula
C24H18ClN3O3
Chinese Name
颜料橙色4
Molecular Weight
431.87100 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Density1.31g/cm3

Frequently Asked Questions

What is the CAS number of 2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)-?

The CAS number of 2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)- is 21889-27-0.

What are the molecular formula and molecular weight of 2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)-?

2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)- has molecular formula C24H18ClN3O3 and molecular weight 431.87100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Naphthalenecarboxamide,4-[2-(3-chlorophenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)- (CAS 21889-27-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1147518-7 (accessed 2026-10-26).

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