Fosaprepitant Benzyl Ester

Also known as: Fosaprepitant Monobenzyl Impurity, Fosaprepitant Impurity 16, Fosaprepitant Impurity 16 CRS, Fosaprepitant ImpurityBJ, Bexabetan monobenzyl ester, Phosphonic acid, [3-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-2,5-dihydro-5-oxo-1H-1,2,4-triazol-1-yl]-, mono(phenylmethyl) ester (9CI), benzyl hydrogen (3-(((2R,3S)-2-((R)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(4-fluorophenyl)morpholino)methyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)phosphonate

Fosaprepitant Benzyl Ester (CAS 889852-02-2) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C30H28F7N4O6P and a molecular weight of 704.52900 g/mol. Key property: a density of 1.51±0.1 g/cm3 (20 ºC 760 Torr). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 889852-02-2
Jingsj CID: J-1528014-1
Molecular Formula: C₃₀H₂₈F₇N₄O₆P
Molecular Weight: 704.52900 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.51±0.1 g/cm3 (20 ºC 760 Torr)
Exact Mass	704.16300
PSA	128.72000
LogP	6.52870
Additional Property	Insuluble (1.1E-3 g/L) (25 ºC)

Frequently Asked Questions

What is the CAS number of Fosaprepitant Benzyl Ester?

The CAS number of Fosaprepitant Benzyl Ester is 889852-02-2.

What are the molecular formula and molecular weight of Fosaprepitant Benzyl Ester?

Fosaprepitant Benzyl Ester has molecular formula C30H28F7N4O6P and molecular weight 704.52900 g/mol.

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. "Fosaprepitant Benzyl Ester (CAS 889852-02-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528014-1 (accessed 2026-11-06).

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