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9-oxo-9H-xanthene-2-carboxylic acid

Also known as: 9-oxoxanthene-2-carboxylic acid, xanthone-2-carboxylic acid, 9-oxo-9H-xanthene-2-carboxylic acid

9-oxo-9H-xanthene-2-carboxylic acid (CAS 40274-67-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H8O4 and a molecular weight of 240.21100 g/mol. Key properties include a boiling point of 483.6ºC at 760 mmHg, a density of 1.445g/cm3 and a flash point of 192.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40274-67-7
Jingsj CID
J-1437614-8
Molecular Formula
C14H8O4
Molecular Weight
240.21100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point483.6ºC at 760 mmHg
Density1.445g/cm3
Flash Point192.9ºC
Exact Mass240.04200
PSA67.51000
LogP2.64440
Refractive Index1.675

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 9-oxo-9H-xanthene-2-carboxylic acid?

The CAS number of 9-oxo-9H-xanthene-2-carboxylic acid is 40274-67-7.

What are the molecular formula and molecular weight of 9-oxo-9H-xanthene-2-carboxylic acid?

9-oxo-9H-xanthene-2-carboxylic acid has molecular formula C14H8O4 and molecular weight 240.21100 g/mol.

What are the upstream and downstream products of 9-oxo-9H-xanthene-2-carboxylic acid?

For 9-oxo-9H-xanthene-2-carboxylic acid, Upstream Products: Dimethyl 4-bromoisophthalate, 4-Bromoisophthalic acid, 2-Chlorobenzoic acid.

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

Last updated:

How to cite: Jingsj. "9-oxo-9H-xanthene-2-carboxylic acid (CAS 40274-67-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437614-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.