4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide

4-氨基-N-[(2R,3S)-3-氨基-2-羟基-4-苯丁基]-N-异丁基苯磺酰胺

Also known as: 4-Amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-isobutylbenzenesulfonamide, 4-amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(2-methylpropyl)benzenesulfonamide, Benzenesulfonamide, 4-amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(2-methylpropyl)-, Darunavir intermediate, Darunavir impurity A

4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide (CAS 169280-56-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C20H29N3O3S and a molecular weight of 391.528 g/mol. It is also known as 4-Amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-isobutylbenzenesulfonamide, 4-amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(2-methylpropyl)benzenesulfonamide and Benzenesulfonamide, 4-amino-N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(2-methylpropyl)-. Key properties include a boiling point of 609.1±65.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 322.2±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 169280-56-2
Jingsj CID: J-1025699-2
Molecular Formula: C₂₀H₂₉N₃O₃S
Chinese Name: 4-氨基-N-[(2R,3S)-3-氨基-2-羟基-4-苯丁基]-N-异丁基苯磺酰胺
Molecular Weight: 391.528 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	609.1±65.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	322.2±34.3 °C

Frequently Asked Questions

What is the CAS number of 4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide?

The CAS number of 4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide is 169280-56-2.

What are the molecular formula and molecular weight of 4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide?

4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide has molecular formula C20H29N3O3S and molecular weight 391.528 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide (CAS 169280-56-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1025699-2 (accessed 2026-10-23).

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