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L-Gulonic acid γ-lactone

Also known as: L(+)-Gulonic acid gamma-lactone, L-Gulonolactone, L-gulono-1,4-lactone, L-(+)-Gulono-1,4-lactone, L-Gulonic acid gamma-lactone, Ascorbic Acid Impurity 16, (3S,4S,5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-one

L-Gulonic acid γ-lactone (CAS 1128-23-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10O6 and a molecular weight of 178.140 g/mol. Key properties include a melting point of 187-190ºC(lit.), a boiling point of 467.9±18.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 201.5±14.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1128-23-0
Jingsj CID
J-10741-5
Molecular Formula
C6H10O6
Molecular Weight
178.140 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point187-190ºC(lit.)
Boiling Point467.9±18.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point201.5±14.7 °C
Exact Mass178.047745
PSA107.22000
LogP-3.15
Vapor Pressure0.0±2.6 mmHg at 25°C
Refractive Index1.625

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Wolucka BA, et al. Mycobacterium tuberculosis possesses a functional enzyme for the synthesis of vitamin C, L-gulono-1,4-lactone dehydrogenase. FEBS J. 2006 Oct;273(19):4435-45. Epub 2006 Sep 5.

Customs & Trade Information

HS Code2932209090
Summary2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of L-Gulonic acid γ-lactone?

The CAS number of L-Gulonic acid γ-lactone is 1128-23-0.

What are the molecular formula and molecular weight of L-Gulonic acid γ-lactone?

L-Gulonic acid γ-lactone has molecular formula C6H10O6 and molecular weight 178.140 g/mol.

What are the upstream and downstream products of L-Gulonic acid γ-lactone?

For L-Gulonic acid γ-lactone, Upstream Products: L-Ascorbic acid, D-Glucaric acid 1,4-lactone, D-Glucaric acid; Downstream Products: L-Ascorbic acid, L-Xylose, 1-Deoxynojirimycin hydrochloride.

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

Last updated:

How to cite: Jingsj. "L-Gulonic acid γ-lactone (CAS 1128-23-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10741-5 (accessed 2026-11-09).

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