6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one

Also known as: 1,4-Dihydro-6,7-dimethoxy-3H-2-benzopyran-3-one, 3,4-Dihydro-6,7-dimethoxy-1H-2-benzopyran-3-one, 6,7-Dimethoxy-1H-2-benzopyran-3(4H)-one, 6,7-Dimethoxy-3-isochromanone, 6,7-Dimethoxyisochroman-3-one, 6,7-Dimethoxy-1,4-dihydro-3H-isochromen-3-one, 6,7-Dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one, 6,7-Dimethoxy-3-isochroman-3-one

6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one (CAS 16135-41-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H12O4 and a molecular weight of 208.21100 g/mol. Key properties include a boiling point of 398ºC at 760 mmHg, a density of 1.211g/cm3 and a flash point of 180.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 16135-41-4
Jingsj CID: J-1358027-3
Molecular Formula: C₁₁H₁₂O₄
Molecular Weight: 208.21100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	398ºC at 760 mmHg
Density	1.211g/cm3
Flash Point	180.8ºC
Exact Mass	208.07400
PSA	44.76000
LogP	1.30310
Vapor Pressure	1.52E-06mmHg at 25°C
Refractive Index	1.535

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 6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one?

The CAS number of 6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one is 16135-41-4.

What are the molecular formula and molecular weight of 6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one?

6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one has molecular formula C11H12O4 and molecular weight 208.21100 g/mol.

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. "6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one (CAS 16135-41-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1358027-3 (accessed 2026-11-09).

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