(S)-3-Acetoxy-gamma-butyrolactone

Also known as: (S)-3-ACETOXY-GAMMA-BUTYROLACTONE, (S)-3-Acetoxy-gamma-butyrolactone, (3S)-β-acetoxy-γ-butyrolactone, [(3S)-5-oxooxolan-3-yl] acetate, 2(3H)-Furanone, 4-(acetyloxy)dihydro-, (4S)-, (S)-4-HYDROXY-2(3H)-FURANONE

(S)-3-Acetoxy-gamma-butyrolactone (CAS 191403-65-3) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C6H8O4 and a molecular weight of 144.12500 g/mol. Key properties include a boiling point of 266.1ºC at 760 mmHg, a density of 1.23 g/cm3 and a flash point of 138.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 191403-65-3
Jingsj CID: J-16587-7
Molecular Formula: C₆H₈O₄
Molecular Weight: 144.12500 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	266.1ºC at 760 mmHg
Density	1.23 g/cm3
Flash Point	138.5ºC
Exact Mass	144.04200
PSA	52.60000
Vapor Pressure	0.00882mmHg at 25°C
Refractive Index	1.448-1.452

Frequently Asked Questions

What is the CAS number of (S)-3-Acetoxy-gamma-butyrolactone?

The CAS number of (S)-3-Acetoxy-gamma-butyrolactone is 191403-65-3.

What are the molecular formula and molecular weight of (S)-3-Acetoxy-gamma-butyrolactone?

(S)-3-Acetoxy-gamma-butyrolactone has molecular formula C6H8O4 and molecular weight 144.12500 g/mol.

What are the upstream and downstream products of (S)-3-Acetoxy-gamma-butyrolactone?

For (S)-3-Acetoxy-gamma-butyrolactone, Upstream Products: (-)-O-Acetyl-L-malic anhydride.

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. "(S)-3-Acetoxy-gamma-butyrolactone (CAS 191403-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16587-7 (accessed 2026-11-06).

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