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4-chloro-2-oxo-2H-chromene-3-carbaldehyde

4-氯-3-甲酰基香豆素

Also known as: 4-chloro-3-formylcoumarin, 4-chlorocoumarin-3-carboxaldehyde, 4-chloro-3-coumarinaldehyde, 4-chloro-2-oxochromene-3-carbaldehyde, 4-chloro-3-formyl-2(2H)-chromenone, AKOS BB-9945, AURORA KA-4151, TIMTEC-BB SBB003464, MFCD00179896, JRH-06901

4-chloro-2-oxo-2H-chromene-3-carbaldehyde (CAS 50329-91-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H5ClO3 and a molecular weight of 208.59800 g/mol. It is also known as 4-chloro-3-formylcoumarin, 4-chlorocoumarin-3-carboxaldehyde and 4-chloro-3-coumarinaldehyde. Key properties include a melting point of 126-130ºC(lit.), a boiling point of 374.5ºC at 760 mmHg, a density of 1.47g/cm3 and a flash point of 173.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50329-91-4
Jingsj CID
J-39378-0
Molecular Formula
C10H5ClO3
Chinese Name
4-氯-3-甲酰基香豆素
Molecular Weight
208.59800 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point126-130ºC(lit.)
Boiling Point374.5ºC at 760 mmHg
Density1.47g/cm3
Flash Point173.7ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-chloro-2-oxo-2H-chromene-3-carbaldehyde?

The CAS number of 4-chloro-2-oxo-2H-chromene-3-carbaldehyde is 50329-91-4.

What are the molecular formula and molecular weight of 4-chloro-2-oxo-2H-chromene-3-carbaldehyde?

4-chloro-2-oxo-2H-chromene-3-carbaldehyde has molecular formula C10H5ClO3 and molecular weight 208.59800 g/mol.

Is 4-chloro-2-oxo-2H-chromene-3-carbaldehyde hazardous?

4-chloro-2-oxo-2H-chromene-3-carbaldehyde has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-chloro-2-oxo-2H-chromene-3-carbaldehyde (CAS 50329-91-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39378-0 (accessed 2026-10-22).

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