N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide

Also known as: 6-Acetylamino-thiochroman-4-one, 6-Acetylamino-thiochroman-4-on, N-(4-oxothiochroman-6-yl)acetamide, Acetamide, N-(3,4-dihydro-4-oxo-2H-1-benzothiopyran-6-yl)-, MFCD14585074, N-(4-oxo-2,3-dihydro-1-benzothiopyran-6-yl)acetamide

N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide (CAS 103989-04-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H11NO2S and a molecular weight of 221.27600 g/mol. Key properties include a boiling point of 473.765ºC at 760 mmHg, a density of 1.338 and a flash point of 240.325ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 103989-04-4
Jingsj CID: J-1618614-4
Molecular Formula: C₁₁H₁₁NO₂S
Molecular Weight: 221.27600 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	473.765ºC at 760 mmHg
Density	1.338
Flash Point	240.325ºC
Exact Mass	221.05100
PSA	71.47000
LogP	2.39650

Frequently Asked Questions

What is the CAS number of N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide?

The CAS number of N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide is 103989-04-4.

What are the molecular formula and molecular weight of N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide?

N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide has molecular formula C11H11NO2S and molecular weight 221.27600 g/mol.

What are the upstream and downstream products of N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide?

For N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide, Upstream Products: 6-Nitrothiochroman-4-one, 4-Nitrothiophenol, 4-Acetamidothiophenol.

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. "N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide (CAS 103989-04-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1618614-4 (accessed 2026-11-09).

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