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4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione

阿普斯特杂质03

Also known as: Apremilast N-desacetyl impurity, Des-acetyl Apremilast, Apremilast Impurity A, Apremilast Impurity AND, Apremilast Impurity P, 4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]isoindoline-1,3-dione

4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione (CAS 635705-72-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H22N2O6S and a molecular weight of 418.464 g/mol. It is also known as Apremilast N-desacetyl impurity, Des-acetyl Apremilast and Apremilast Impurity A. Key properties include a boiling point of 673.6±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 361.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
635705-72-5
Jingsj CID
J-1527972-3
Molecular Formula
C20H22N2O6S
Chinese Name
阿普斯特杂质03
Molecular Weight
418.464 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point673.6±55.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point361.2±31.5 °C

Frequently Asked Questions

What is the CAS number of 4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione?

The CAS number of 4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione is 635705-72-5.

What are the molecular formula and molecular weight of 4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione?

4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione has molecular formula C20H22N2O6S and molecular weight 418.464 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Amino-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione (CAS 635705-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1527972-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.