2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide

Also known as: 2-(1,3-dioxoisoindol-2-yl)ethanesulfonamide, 2-(1,3-dioxoisoindolin-2-yl)ethanesulfonamide, 2-(1,3-diketoisoindolin-2-yl)ethanesulfonamide, 2-(1,3-dioxo-2-isoindolinyl)ethanesulfonamide, 2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-ethanesulfonic acid amide, 2-phthalimidoethanesulfonamide, 2H-Isoindole-2-ethanesulfonamide, 1,3-dihydro-1,3-dioxo-

2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide (CAS 4443-23-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N2O4S and a molecular weight of 254.26200 g/mol. Key properties include a boiling point of 476.7ºC at 760 mmHg, a density of 1.542g/cm3 and a flash point of 242.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4443-23-6
Jingsj CID: J-907776-3
Molecular Formula: C₁₀H₁₀N₂O₄S
Molecular Weight: 254.26200 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	476.7ºC at 760 mmHg
Density	1.542g/cm3
Flash Point	242.1ºC
Exact Mass	254.03600
PSA	105.92000
LogP	1.29010
Refractive Index	1.645
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2935009090
Summary	2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide?

The CAS number of 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide is 4443-23-6.

What are the molecular formula and molecular weight of 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide?

2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide has molecular formula C10H10N2O4S and molecular weight 254.26200 g/mol.

What are the upstream and downstream products of 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide?

For 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide, Upstream Products: 2-Phthalimidoethanesulfonyl chloride, Phthalic anhydride, 1,3-Dioxo-2-isoindolineethanesulfonic acid; Downstream Products: 2-Aminoethanesulfonamide, 2-Aminoethanesulfonamide hydrochloride.

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. "2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethanesulfonamide (CAS 4443-23-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-907776-3 (accessed 2026-11-09).

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