5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione

5-氟-1-[(2R,5S)-2-(羟甲基)-1,3-氧硫杂环戊-5-基]-2,4(1H,3H)-嘧啶二酮

Also known as: cis-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione, (2R,5S)-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione, Emtricitabine impurity IV, 5-Fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]uracil, Emtricitabine hydroxy impurity, AIDS-004772, Oxathiolan 5fu-.B

5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione (CAS 145986-11-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9FN2O4S and a molecular weight of 248.232 g/mol. It is also known as cis-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione, (2R,5S)-5-Fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione and Emtricitabine impurity IV. Key property: a density of 1.7±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
145986-11-4
Jingsj CID
J-1528904-9
Molecular Formula
C8H9FN2O4S
Chinese Name
5-氟-1-[(2R,5S)-2-(羟甲基)-1,3-氧硫杂环戊-5-基]-2,4(1H,3H)-嘧啶二酮
Molecular Weight
248.232 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Density1.7±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione?

The CAS number of 5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione is 145986-11-4.

What are the molecular formula and molecular weight of 5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione?

5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione has molecular formula C8H9FN2O4S and molecular weight 248.232 g/mol.

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

Last updated:

How to cite: Jingsj. "5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2,4(1H,3H)-pyrimidinedione (CAS 145986-11-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528904-9 (accessed 2026-10-25).

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