10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

Also known as: 10-Methoxy-4-Benzo[4,5]Cyclohepta[1,2-B]Thiophene-4-One, Benzo[b]thiophen-10-methoxycycloheptanone, Benzothiophene-10-methoxycycloheptanone, 10-methoxy-4H-benzo[4,5]cyclohepta-[1,2-b]thiophen-4-one, 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one, 10-methoxy-, 10-Methoxy-4h-Benzo(4,5)Cyclohepta(1,2-B)Thiophen-4-One, 10-methoxy-4H-benzo[4,5]-cycloheta[1,2-b]thiophen-4-one(for Ketotifen)

10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one (CAS 59743-84-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H10O2S and a molecular weight of 242.293 g/mol. Key properties include a boiling point of 436.4±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 217.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 59743-84-9
Jingsj CID: J-1147439-8
Molecular Formula: C₁₄H₁₀O₂S
Molecular Weight: 242.293 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	436.4±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	217.7±28.7 °C
Exact Mass	242.040146
PSA	54.54000
LogP	2.32
Vapor Pressure	0.0±1.0 mmHg at 25°C
Refractive Index	1.661
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

The CAS number of 10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one is 59743-84-9.

What are the molecular formula and molecular weight of 10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one has molecular formula C14H10O2S and molecular weight 242.293 g/mol.

What are the upstream and downstream products of 10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

For 10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one, Upstream Products: 9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one; Downstream Products: 10-methoxy-4-(1-methylpiperidin-4-yl)-4H-benzo[4,5]cyclohepta[1,2-b]thiophene-4-ol, Ketotifen.

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. "10-Methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one (CAS 59743-84-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1147439-8 (accessed 2026-11-09).

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