(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one

Also known as: (3aR,4R,5R,6aS)-2-oxo-4-((E)-3-oxooct-1-en-1-yl)hexahydro-2H-cyclopenta[b]furan-5-yl benzoate, (3aR,4R,5R,6aS)-2-oxo-4-[(1E)-3-oxo-1-octen-1-yl]hexahydro-2H-cyclopenta[b]furan-5-yl benzoate, (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one, 5-(Benzoyloxy)-3,3a,4,5,6,6a-hexahydro-4-(3-oxo-1-octenyl)-2H-cyclopenta[b]furan-2-one, (1S,5R,6R,7R)-2-oxa-6-[(E)-3-oxoocten-1-yl]-7-benzoyloxybicyclo[3.3.0]octan-3-one, DN-BK, Dinoprost intermediate, 2H-Cyclopenta[b]furan-2-one, 5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-, (3aR,4R,5R,6aS)-

(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one (CAS 40834-86-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C22H26O5 and a molecular weight of 370.439 g/mol. Key properties include a boiling point of 546.8±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 238.2±30.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 40834-86-4
Jingsj CID: J-1904198-6
Molecular Formula: C₂₂H₂₆O₅
Molecular Weight: 370.439 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	546.8±50.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	238.2±30.2 °C
Exact Mass	370.178009
PSA	69.67000
LogP	3.33
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.555

Frequently Asked Questions

What is the CAS number of (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one?

The CAS number of (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one is 40834-86-4.

What are the molecular formula and molecular weight of (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one?

(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one has molecular formula C22H26O5 and molecular weight 370.439 g/mol.

What are the upstream and downstream products of (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one?

For (3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one, Upstream Products: Dimethyl (2-oxoheptyl)phosphonate, (-)-Corey aldehyde benzoate.

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. "(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-[(1E)-3-oxo-1-octen-1-yl]-2H-cyclopenta[b]furan-2-one (CAS 40834-86-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1904198-6 (accessed 2026-11-09).

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