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Atorvastatin Impurity
Atorvastatin Related Compound A
Atorvastatin Related Compound B
Atorvastatin Related Compound C
Atorvastatin Related Compound D

Atorvastatin Impurity

Welcome to Veeprho Pharmaceuticals s.r.o, manufacturer and supplier of Atorvastatin Impurity. We also offer other Atorvastatin based products, including Atorvastatin Cyclo FP Impurity, Atorvastatin Impurity F / Diamino Impurity, Atorvastatin Related Compound B / (3S,5R isomer), Atorvastatin Related compound D/ Epoxide Impurity, Oxo Atorvastatin Impurity, Atorvastatin Methyl Ester, Atorvastatin -3-O-Methyl, Atorvastatin Impurity G, Atorvastatin Lactone / Atorvastatin USP Related compound H / Atorvastatin EP Impurity H, Atorvastatin Related Compound I / Acetonide Impurity, Atorvastatin Butyl Ester Impurity / Atorvastatin tert-Butyl Ester, Desfluoro Atorvastatin (Atorvastatin Related Compound A), Atorvastatin Related Compound C / Difluoro Impurity, Atorvastatin EP Impurity E / Atorvastatin Related Compound E / 3S 5S Isomer, Atorvastatin FX1 Impurity / Atorvastatin Cyclic Fluorophenyl (Cyclo FP) / Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy analog, Atorvastatin FXA Impurity / Atorvastatin Cyclic Isopropyl (Cyclo IP) / Atorvastatin Epoxy Pyrrolooxazin 6-Hydroxy analog, Atorvastatin Epoxy THF Analog, Atorvastatin Pyrrolidone Analog (USP) / Atorvastatin Lactam Calcium Salt, 4-Hydroxy Atorvastatin Monosodium Salt, Atorvastatin Diepoxide Calcium Salt. We also undertake the manufacturing and supply of all Atorvastatin impurities mentioned above, which have to be isolated by preparative HPLC and Lyophilized.


On purchase of any of these impurities, you will receive a certificate of analysis and characterization data like NMR MASS IR and HPLC Purity. You can also request for receiving additional information like CHN, C NMR and TGA RF.


Veeprho Pharmaceuticals s.r.o also manufacture and supply Atorvastatin USP, EP, BP pharmacopoeia impurities, any unknown impurity, APIs and intermediates with structure elucidation with the help of H NMR, CHN, C NMR, MASS and HPLC data. We also provide all impurity of Atrovastatin as per to pharmacopoeia RRT if requested by the customers.


All regulatory agencies around the world including US-FDA, MCC, MHRA, WHO, Brazil and Japan accept the Atorvastatin impurities are manufactured and supplied by Veeprho Pharmaceuticals s.r.o. These Atorvastatin impurities are even used for genotoxic study as well as ANDA/DMF fillings.


Atorvastatin Epoxy THF Analog
Atorvastatin FXA Impurity
Atorvastatin FX1 Impurity
Atorvastatin Pyrrolidone Analog
Atorvastatin Diepoxide Calcium Salt
Oxo Atorvastatin Impurity
Atorvastatin Cyclo FP Impurity
Atorvastatin EP Impurity E
Atorvastatin EP Impurity F
Atorvastatin EP Impurity H
Atorvastatin Methyl Ester

Atorvastatin Impurities :-



Atorvastatin Methyl Ester / Diol methyl ester impurity
Atorvastatin Methyl Ester / Diol methyl ester impurity

(3S,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid methyl ester

Catalogue No : VL10009

CAS No : 345891-62-5

Atorvastatin Related Compound B/ (3S, 5R isomer)
Atorvastatin Related Compound B/ (3S, 5R isomer)

(3S,5R)-7-[3-(phenylcarbomoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1Hpyrrol- 1-yl]-3,5-dihyroxyheptanoicacid, calcium salt.

Catalogue No : VL10001

CAS No : 887196-25-0

Atorvastatin Butyl Ester Impurity / Atorvastatin tert-Butyl Ester
Atorvastatin Butyl Ester Impurity / Atorvastatin tert-Butyl Ester

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.

Catalogue No : VL10013

CAS No : 134395-00-9

Oxo Atorvastatin Impurity
Oxo Atorvastatin Impurity

4-[6-(4-Fluoro-phenyl)-6-hydroxy-1b-isopropyl-6a-phenyl-1a-phenylcarbamoylhexahydro- 1,2-dioxa-5a-aza-cyclo-propa[a]inden-3-yl]-3-(R)-hydroxy-butyric acid.

Catalogue No : VL10007

CAS No : 1391052-00-8

Atorvastatin Related Compound C / Difluoro Impurity
Atorvastatin Related Compound C / Difluoro Impurity

(3R,5R)-7-[3-(phenylcarbomoyl)-4,5-bis(4-fluorophenyl)-2-isopropyl-1H-pyrrol-1- yl]-3,5-dihyroxyheptanoic acid, calcium salt.

Catalogue No : VL10005

CAS No : 693793-53-2

Atorvastatin EP Impurity E / Atorvastatin Related Compound E/3S 5S Isomer
Atorvastatin EP Impurity E / Atorvastatin Related Compound E/3S 5S Isomer

(3S,5S)-7-[3-(phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1Hpyrrol- 1-yl]-3,5-dihyroxyheptanoic acid, calcium salt.

Catalogue No : VL10006

CAS No : 501121-34-2

Atorvastatin Related compound D / Epoxide Impurity
Atorvastatin Related compound D / Epoxide Impurity

Atorvastatin epoxide impurity OR 3-(4-fluorophenyl)-2-isobutyryl-3-phenyloxirane- 2-carboxylic acid phenylamide

Catalogue No : VL10003

CAS No : 148146-51-4

Atorvastatin -3-O-Methyl (Atorvastatin Impurity G)
Atorvastatin -3-O-Methyl (Atorvastatin Impurity G)

2-(4-Fluorophenyl)-δ-hydroxy-β-methoxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1- heptanoic Acid Calcium Salt

Catalogue No : VL10010

CAS No : 887324-53-0

Atorvastatin Lactone / Atorvastatin USP Related compound H / Atorvastatin EP Impurity H
Atorvastatin Lactone / Atorvastatin USP Related compound H / Atorvastatin EP Impurity 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

Catalogue No : VL10002

CAS No : 125995-03-1

Atorvastatin Related Compound I / Acetonide Impurity
Atorvastatin Related Compound I / Acetonide Impurity

Tert-Butyl 2-((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

Catalogue No : VL10012

CAS No : 125971-95-1

Desfluoro Atorvastatin (Atorvastatin Related Compound A)
Desfluoro Atorvastatin (Atorvastatin Related Compound A)

(3R, 5R)-7-[3-(phenylcarbamoyl)-2-isopropyl-4,5- diphenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid calcium salt)

Catalogue No : VL10004

CAS No : 433289-84-0

Atorvastatin Diepoxide Calcium Salt
Atorvastatin Diepoxide Calcium Salt

7-[N-Phenyl-2-[4-(4-fluorophenyl]-6-methylethyl]-3,7-dioxa-5-azatricyclo [4.1.0.02,4]-4-[{phenylamino}carboxamiide]-(3R,5R)-3,5-dihydroxyheptanoic Acid Calcium Salt

Catalogue No : VL10014

CAS No : 433289-84-0

4-Hydroxy Atorvastatin Monosodium Salt
4-Hydroxy Atorvastatin Monosodium Salt

Sodium (3R,5R)-7-(2-(4-fluorophenyl)-4-((4-hydroxyphenH-pyrrol-1-yl)-3,5- dihydroxyheptanoate

Catalogue No : VL10015

CAS No : 163217-71-8

Atorvastatin Pyrrolidone Analog (USP) / Atorvastatin Lactam
Atorvastatin Pyrrolidone Analog (USP) / Atorvastatin Lactam

(3R,5R)-7-[5-(4-Fluorophenyl)-2,3-dihydro-3-(1-methylethyl)-2- oxo- 4-phenyl-3-[(phenylamino) carbonyl]-1H-pyrrol-1-yl]-3,5- dihydroxy-heptanoic acid Sodium salt

Catalogue No : VL10019

CAS No : 148217-40-7

Atorvastatin FX1 Impurity / Atorvastatin Cyclic Fluorophenyl (Cyclo FP) / Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy analog
Atorvastatin FX1 Impurity / Atorvastatin Cyclic Fluorophenyl (Cyclo FP) / Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy analog

4-(1b-(4-fluorophenyl)-7-hydroxy-7-isopropyl-1a-phenyl-7a- (phenylcarbamoyl)hexahydro-1aH-oxireno[2’,3’:3,4]pyrrolo[2,1- b][1,3]oxazin-3-yl)-3-hydroxybutanoic acid

Catalogue No : VL10021

CAS No : 1315629-79-8

Atorvastatin Epoxy THF Analog
Atorvastatin Epoxy THF Analog

4-(4-Fluorophenyl)-2,4-dihydroxy-2-isopropyl-N,5-diphenyl-3,6- dioxabcclo [3.1.0]hexane-1carboxamide.

Catalogue No : VL10030

CAS No : 873950-19-7

Atorvastatin FXA Impurity / Atorvastatin 6-Hydroxy analog / Atorvastatin Cyclo IP
Atorvastatin FXA Impurity / Atorvastatin 6-Hydroxy analog / Atorvastatin Cyclo IP

4-{6-(4-Fluorophenyl)-7,8-epoxy-6-hydroxy-8a-isopropyl-7-phenyl-8-(phenylcarbamoyl)hexahydro-2H-pyrrolo[2,1- b][1,3]oxazin-2-yl}-3-hydroxybutanoic acid

Catalogue No : VL10023

CAS No : 1316291-19-6

Atorvastatin Epoxy Tetrahydrofuran Analog
Atorvastatin Epoxy Tetrahydrofuran Analog

4-(4-Fluorophenyl)-2,4-dihydroxy-2-isopropyl-N,5-diphenyl-3,6-dioxabicyclo[3.1.0]hexane-1-carboxamide

Catalogue No : VL10026

CAS No : 873950-19-7

Atorvastatin Impurity F / Diamino Impurity
Atorvastatin Impurity F / Diamino Impurity

(3R,5R)-7-[[(3R,5R)-7-[2-(4-Fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]-3,5-dihydroxy-1-oxoheptyl]amino]-3,5-dihydroxy-heptanoic acid. Calcium salt.

Catalogue No : VL10011

CAS No : 887196-24-9

3-Dehydroxy 2,3-Dehydro Atorvastatin Lactone
3-Dehydroxy 2,3-Dehydro Atorvastatin Lactone

1-[2-[(2S)-3,6-Dihydro-6-oxo-2H-pyran-2-yl]ethyl]-5-(4-fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1H-pyrrole-3- carboxamide

Catalogue No : VL10034

CAS No : 442851-50-5

Atorvastatin 3-Deoxy-Hept-2-Enoic Acid
Atorvastatin 3-Deoxy-Hept-2-Enoic Acid

(phenylcarbamoyl)-1H- pyrrol-1-yl]-5-hydroxyhept-2-enoic acid calcium salt

Catalogue No : VL10018

CAS No : 1105067-93-3

Atorvastatin 2,3 Anhydro lactone / 3-Dehydroxy 2,3-Dehydro Atorvastatin Lactone
Atorvastatin 2,3 Anhydro lactone / 3-Dehydroxy 2,3-Dehydro Atorvastatin Lactone

1-[2-[(2S)-3,6-Dihydro-6-oxo-2H-pyran-2-yl]ethyl]-5-(4-fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1H-pyrrole-3-carboxamide

Catalogue No : VL10034

CAS No : 442851-50-5

Atorvastatin Acetonide Methyl Ester Impurity
Atorvastatin Acetonide Methyl Ester Impurity

(4R,6R)-6-[2-[2-(4-Fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenyl amino) carbonyl]-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetic acid methyl ester

Catalogue No : VL10037

CAS No : 1553049-81-6

Atorvastatin Ethyl Ester impurity
Atorvastatin Ethyl Ester impurity

(βR,δR)-2-(4-Fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid Ethyl Ester

Catalogue No : VL10024

CAS No : 1146977-93-6

Atorvastatin Oxirane impurity
Atorvastatin Oxirane impurity

3-(4-Fluorobenzoyl)-2-isobutyryl-3-phenyloxirane-2-carboxylic Acid Phenylamide

Catalogue No : VL10028

CAS No : 1035205-25-4

Atorvastatin Lactam Lactone/Atorvastatin Pyrrolidone Lactone
Atorvastatin Lactam Lactone/Atorvastatin Pyrrolidone Lactone

5-(4-Fluorophenyl)-1-{2-[(2R,4R)-4-hydroxy-6-oxotetrahydro-2Hpyran- 2-yl]ethyl}-3-isopropyl-2-oxo-N,4-diphenyl-2,3-dihydro-1Hpyrrole- 3-carboxamide

Catalogue No : VL10031

CAS No : 906552-19-0