(3R,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester
- CAS
- 125971-93-9
- Formula
- C11H19NO4
- MW
- 229.27 g/mol
ZX-020709
Impurity reference standards
Atorvastatin impurity standards
98 characterised compounds linked to Atorvastatin are catalogued here, from named pharmacopoeial impurities to synthesis intermediates and breakdown products. Highlights of the range are 20 pharmacopoeial impurities, 1 isotope-labelled standard, 14 metabolites or hydroxylated analogues and 5 degradation products.
98reference materials
20pharmacopoeial
1isotope labelled
14metabolites
Each lot ships with a certificate of analysis, and characterisation data such as 1H-NMR, mass spectrum and HPLC purity can be shared before you order. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Pharmacopoeial20EP, USP, BP or JP named impurities
Isotope labelled1Deuterated, 13C or 15N internal standards
Metabolites14Hydroxy, desmethyl and conjugated forms
Degradants5N-oxides, dimers, lactones and breakdown products
Counts are based on product names. One compound can fall into more than one type.
All Atorvastatin reference materials
1–60 of 98 standards
(3S,5S)-Atorvastatin Acetonide tert-Butyl Ester
- CAS
- 472967-95-6
- Formula
- C40H47FN2O5
- MW
- 654.8 g/mol
ZX-020716
(4R,6R)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester
- CAS
- 125971-94-0
- Formula
- C14H23NO4
- MW
- 269.34 g/mol
ZX-020711
(4R,6S)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid tert-Butyl Ester
- CAS
- 196085-84-4
- Formula
- C14H23NO4
- MW
- 269.34 g/mol
ZX-019917
(4S,6S)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid tert-Butyl Ester
- CAS
- 196085-85-5
- Formula
- C14H23NO4
- MW
- 269.34 g/mol
ZX-019915
(4S,Trans)-1,1-Dimethylethyl-6-aminoethyl-2,2-dimethyl-1,3-dioxane-4-acetate
- CAS
- 1105067-89-7
- Formula
- C14H27NO4
- MW
- 273.37 g/mol
ZX-028108
(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester
- CAS
- 125988-01-4
- Formula
- C11H17NO4
- MW
- 227.26 g/mol
ZX-023409
1-((3R,5R)-6-Carboxy-3,5-dihydroxyhexyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic Acid
- CAS
- 1821498-27-4
- Formula
- C27H30FNO6
- MW
- 483.5 g/mol
ZX-028107
2-(1,1-dimethylethyl)-4-methoxy-Phenol Potassium Salt
- CAS
- 155794-98-2
- Formula
- C11H16O2.K
- MW
- 219.34 g/mol
ZX-011960
2-Fluoro-alpha-(2-methyl-1-oxopropyl)-gamma-oxo-N,beta-diphenyl-benzenebutanamide
- CAS
- 1797905-42-0
- Formula
- C26H24FNO3
- MW
- 417.5 g/mol
ZX-019916
3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide
- CAS
- 54016-70-5
- Formula
- C8H14BrNOS
- MW
- 252.17 g/mol
ZX-045337
4-Fluoro-α-(2-methyl-1-oxopropyl)-γ-oxo-N,-β-diphenyl-benzenebutanamide
- CAS
- 125971-96-2
- Formula
- C26H24FNO3
- MW
- 417.5 g/mol
ZX-019908
4-Methyl-3-oxo-N-phenyl-2- (phenylmethylene) pentanamide
- CAS
- 125971-57-5
- Formula
- C19H19NO2
- MW
- 293.4 g/mol
ZX-028112
Atorvastatin Acetonide t-Butyl Ester (4S,6R)-Isomer
- CAS
- 1105067-90-0
- Formula
- C40H47FN2O5
- MW
- 654.8 g/mol
ZX-020710
Atorvastatin Acetonide t-Butyl Ester Side Chain (4S,6R)-Isomer
- CAS
- 186508-95-2
- Formula
- C14H23NO4
- MW
- 269.34 g/mol
ZX-004386
Atorvastatin Cyclic Fluorophenyl Sodium Salt Impurity
- CAS
- 1315629-79-8
- Formula
- C33H34FN2NaO7
- MW
- 612.6 g/mol
ZX-004389
Atorvastatin Cyclic Sodium Salt Isopropyl Impurity
- CAS
- 1316291-19-6
- Formula
- C33H34FN2NaO7
- MW
- 612.6 g/mol
ZX-004391
Questions
Atorvastatin impurities, answered
How many Atorvastatin impurity standards does Zemixal list?
The catalogue currently lists 98 compounds for Atorvastatin, including 20 pharmacopoeial impurities, 1 isotope-labelled standard, 14 metabolites or hydroxylated analogues and 5 degradation products. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Atorvastatin impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Atorvastatin impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.
Are isotope-labelled Atorvastatin standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.