(5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester

6-(1'-叔丁基二甲基硅氧乙基)-3-(2''-四氢呋喃基)-7-氧代-4-硫-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸烯丙酯

Also known as: (5R,6S)-Allyl 6-((R)-1-((tert-butyldimethylsilyl)oxy)ethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate, Allyl (5R,6S)-6-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-7-oxo-3-[(2R)-tetrahydrofuran-2-yl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate, Faropenem Related Compound 3, All(1'R,2"R,5R,6S)-6(1'-tert-butyl dimethylsilyloxyethy)-2-(2"-tetrahydrofuranyl)penem-3-carboxylate, prop-2-en-1-yl (5R,6S)-6-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-7-oxo-3-[(2R)-tetrahydrofuran-2-yl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

(5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester (CAS 120705-67-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H33NO5SSi and a molecular weight of 439.641 g/mol. It is also known as (5R,6S)-Allyl 6-((R)-1-((tert-butyldimethylsilyl)oxy)ethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate, Allyl (5R,6S)-6-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-7-oxo-3-[(2R)-tetrahydrofuran-2-yl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate and Faropenem Related Compound 3. Key properties include a boiling point of 536.3±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 278.1±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
120705-67-1
Jingsj CID
J-1070879-2
Molecular Formula
C21H33NO5SSi
Chinese Name
6-(1'-叔丁基二甲基硅氧乙基)-3-(2''-四氢呋喃基)-7-氧代-4-硫-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸烯丙酯
Molecular Weight
439.641 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point536.3±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point278.1±30.1 °C

Frequently Asked Questions

What is the CAS number of (5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester?

The CAS number of (5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester is 120705-67-1.

What are the molecular formula and molecular weight of (5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester?

(5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester has molecular formula C21H33NO5SSi and molecular weight 439.641 g/mol.

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

Last updated:

How to cite: Jingsj. "(5R,6S)-6-[(1R)-1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]ethyl]-7-oxo-3-[(2R)-tetrahydro-2-furanyl]-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-propenyl ester (CAS 120705-67-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1070879-2 (accessed 2026-10-24).

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