(2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester

(2R,5S)-5-(5-氟-3,4-二氢-2,4-二氧代-1(2H)-嘧啶基)-1,3-氧硫戊环-2-羧酸(1R,2S,5R)-5-甲基-2-(1-甲基乙基)环己基酯

Also known as: Emtricitabine Impurity 21

(2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester (CAS 1422361-25-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H25FN2O5S and a molecular weight of 400.472 g/mol. It is also known as Emtricitabine Impurity 21. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1422361-25-8
Jingsj CID: J-1186886-8
Molecular Formula: C₁₈H₂₅FN₂O₅S
Chinese Name: (2R,5S)-5-(5-氟-3,4-二氢-2,4-二氧代-1(2H)-嘧啶基)-1,3-氧硫戊环-2-羧酸(1R,2S,5R)-5-甲基-2-(1-甲基乙基)环己基酯
Molecular Weight: 400.472 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of (2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester?

The CAS number of (2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester is 1422361-25-8.

What are the molecular formula and molecular weight of (2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester?

(2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester has molecular formula C18H25FN2O5S and molecular weight 400.472 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. "(2R,5S)-5-(5-Fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-oxathiolane-2-carboxylic acid (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester (CAS 1422361-25-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1186886-8 (accessed 2026-10-27).

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