4,4-Dimethyl-4H-isochromene-1,3-dione

Also known as: 4,4-Dimethyl-4H-isochromene-1,3-dione, 4,4-Dimethylisochromene-1,3-dione, 1H-2-Benzopyran-1,3(4H)-dione, 4,4-dimethyl-

4,4-Dimethyl-4H-isochromene-1,3-dione (CAS 31952-55-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H10O3 and a molecular weight of 190.19500 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31952-55-3
Jingsj CID: J-1322079-6
Molecular Formula: C₁₁H₁₀O₃
Molecular Weight: 190.19500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	190.06300
PSA	43.37000
LogP	1.66120

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. 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 4,4-Dimethyl-4H-isochromene-1,3-dione?

The CAS number of 4,4-Dimethyl-4H-isochromene-1,3-dione is 31952-55-3.

What are the molecular formula and molecular weight of 4,4-Dimethyl-4H-isochromene-1,3-dione?

4,4-Dimethyl-4H-isochromene-1,3-dione has molecular formula C11H10O3 and molecular weight 190.19500 g/mol.

What are the upstream and downstream products of 4,4-Dimethyl-4H-isochromene-1,3-dione?

For 4,4-Dimethyl-4H-isochromene-1,3-dione, Upstream Products: 2-Methyl-2-phenylpropanoic acid, 3,3-Dimethyl-2,3-dihydro-1H-inden-1-one, 3-methyl-3-phenylbutanoic acid; Downstream Products: Cumene, 3,3-dimethylphthalide.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4-Dimethyl-4H-isochromene-1,3-dione (CAS 31952-55-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1322079-6 (accessed 2026-11-09).

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