Atorvastatin Acetonide tert-Butyl Ester

Also known as: Atorvastatin Calcium Impurity E, Atorvastatin Impurity 30, Atorvastatin calcium intermediate, Atorvastatin intermediate L1, tert-Butyl (4R,6R)-6-[2-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetate, tert-Butyl [(4R,6R)-6-{2-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl]ethyl}-2,2-dimethyl-1,3-dioxan-4-yl]acetate, (4R-cis)-1,1-dimethylethyl-6-[2-[2-(4-fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetate, MFCD08458280

Atorvastatin Acetonide tert-Butyl Ester (CAS 125971-95-1) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C40H47FN2O5 and a molecular weight of 654.810 g/mol. Key properties include a melting point of 144-148ºC, a boiling point of 678.0±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 363.9±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 125971-95-1
Jingsj CID: J-1983792-4
Molecular Formula: C₄₀H₄₇FN₂O₅
Molecular Weight: 654.810 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	144-148ºC
Boiling Point	678.0±55.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	363.9±31.5 °C
Exact Mass	654.346924
PSA	78.79000
LogP	7.78
Vapor Pressure	0.0±2.1 mmHg at 25°C
Refractive Index	1.569

Activity & Biological Data

Additional Information	[1]. Process for preparing amorphous (4r-cis)-6-[2-[3-phenyl-4-(phenylcarbamoyl)-2-(4-fluorophenyl)-5-(1-methylethyl)-pyrrol-1-yl]-ethyl]-2,2-dimethyl-[1,3]-dioxane-4-yl-acetic acid. WO2005063741A1.

Frequently Asked Questions

What is the CAS number of Atorvastatin Acetonide tert-Butyl Ester?

The CAS number of Atorvastatin Acetonide tert-Butyl Ester is 125971-95-1.

What are the molecular formula and molecular weight of Atorvastatin Acetonide tert-Butyl Ester?

Atorvastatin Acetonide tert-Butyl Ester has molecular formula C40H47FN2O5 and molecular weight 654.810 g/mol.

What are the upstream and downstream products of Atorvastatin Acetonide tert-Butyl Ester?

For Atorvastatin Acetonide tert-Butyl Ester, Upstream Products: Benzenebutanamide, 4-fluoro-α-(2-methyl-1-oxopropyl)-γ-oxo-N,β-diphenyl-, tert-Butyl (4R,6R)-6-(cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetate, Isopropanol; Downstream Products: Atorvastatin lactone, Atorvastatin tert-Butyl Ester, Atorvastatin.

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 Acetonide tert-Butyl Ester (CAS 125971-95-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1983792-4 (accessed 2026-11-09).

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