Atorvastatin lactone

Also known as: Atorvastatin impurity H, Atorvastatin calcium impurity H, Atorvastatin EP impurity H, Atorvastatin related compound H, 5-(4-Fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamide, (4R,6R)-6-{2-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl]ethyl}-4-hydroxytetrahydro-2H-pyran-2-one

Atorvastatin lactone (CAS 125995-03-1) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C33H33FN2O4 and a molecular weight of 540.625 g/mol. Key properties include a melting point of 103-106ºC, a boiling point of 674.8±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 361.9±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 125995-03-1
Jingsj CID: J-1958272-4
Molecular Formula: C₃₃H₃₃FN₂O₄
Molecular Weight: 540.625 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	103-106ºC
Boiling Point	674.8±55.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	361.9±31.5 °C
Exact Mass	540.242432
PSA	80.56000
LogP	4.30
Vapor Pressure	0.0±2.2 mmHg at 25°C
Refractive Index	1.617

Activity & Biological Data

Additional Information	[1]. Valesky RJ, et al. Automated enzyme inhibition assay method for the determination of atorvastatin-derived HMG-CoA reductase inhibitors in human plasma using radioactivity detection. J Pharmacol Toxicol Methods. 2008 Jan-Feb;57(1):61-9.

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 Atorvastatin lactone?

The CAS number of Atorvastatin lactone is 125995-03-1.

What are the molecular formula and molecular weight of Atorvastatin lactone?

Atorvastatin lactone has molecular formula C33H33FN2O4 and molecular weight 540.625 g/mol.

What are the upstream and downstream products of Atorvastatin lactone?

For Atorvastatin lactone, Upstream Products: Atorvastatin, Benzenebutanamide, 4-fluoro-α-(2-methyl-1-oxopropyl)-γ-oxo-N,β-diphenyl-, Atorvastatin Acetonide tert-Butyl Ester; Downstream Products: Atorvastatin Sodium.

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. "Atorvastatin lactone (CAS 125995-03-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958272-4 (accessed 2026-11-06).

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