Atorvastatin Related Products 
Venkatasai is a leading innovator in the field of pharmaceutical reference standards, offering high-quality Reference Standards of Abacavir, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamines (N-NO products). Our Abacavir impurity reference standards play a vital role in pharmaceutical research, supporting product development, ANDA and DMF filings, quality control (QC), method validation, and stability studies. They are also instrumental in identifying unknown impurities and evaluating genotoxic potential. All Abacavir-related products are thoroughly characterized and supplied with comprehensive Certificates of Analysis (COA) and analytical data that comply with regulatory standards. EP/USP traceable standards can also be provided upon request. Furthermore, all supplied products undergo periodic re-testing to ensure continued quality and reliability.
(3R,5S)-Atorvastatin
CAT No: VS-A114025
CAS No: 651770-09-1
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.7
Status: Custom Synthesis
(3R,5S)-Atorvastatin (Sodium Salt)
CAT No: VS-A114096
CAS No: 131275-93-9
Mol.F.: C33H34FN2NaO5
Mol.Wt.: 580.62
Status: Custom Synthesis
(3R,5S)-Atorvastatin Calcium salt
CAT No: VS-A114072
CAS No: 1312366-79-2
Mol.F.: C33H35FN2O5 : 1/2(Ca)
Mol.Wt.: 558.7 : 1/2 (40.1)
Status: Custom Synthesis
10-trans-Atorvastatin Acetonide tert-Butyl Ester
CAT No: VS-A114046
CAS No: 1105067-90-0
Mol.F.: C40H47FN2O5
Mol.Wt.: 654.8
Status: Custom Synthesis
2-Hydroxy Atorvastatin (Calcium Salt)
CAT No: VS-A114099
CAS No: 265989-46-6
Mol.F.: C66H68CaF2N4O12
Mol.Wt.: 1187.35
Status: Custom Synthesis
4-Hydroxy atorvastatin
CAT No: VS-A114040
CAS No: 214217-88-6
Mol.F.: C33H35FN2O6
Mol.Wt.: 574.64
Status: Custom Synthesis
4-Hydroxy-Atorvastatin (Calcium Salt)
CAT No: VS-A114098
CAS No: 265989-44-4
Mol.F.: C66H68CaF2N4O12
Mol.Wt.: 1187.36
Status: Custom Synthesis
5-DEHYDROXY (3S)-ATORVASTATIN
CAT No: VS-A114105
CAS No: 887196-26-1
Mol.F.: C33H35FN2O4
Mol.Wt.: 542.64
Status: Custom Synthesis
Atorvastatin (3S,5R)-Isomer Methyl Ester
CAT No: VS-A114026
CAS No: N/A
Mol.F.: C34H37FN2O5
Mol.Wt.: 572.7
Status: Custom Synthesis
Atorvastatin (3S,5S) Enantiomer
CAT No: VS-A114080
CAS No: 501121-34-2
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.7
Status: Custom Synthesis
Atorvastatin 2,3,4,5-Dianhydro Acid
CAT No: VS-A114027
CAS No: 2588261-49-6
Mol.F.: C33H31FN2O3
Mol.Wt.: 522.6
Status: Custom Synthesis
Atorvastatin 2,3-Anhydro Lactone
CAT No: VS-A114028
CAS No: 442851-50-5
Mol.F.: C33H31FN2O3
Mol.Wt.: 522.6
Status: Custom Synthesis
Atorvastatin 2-Fluoro Analog
CAT No: VS-A114029
CAS No: 2243639-97-4
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.7
Status: Custom Synthesis
Atorvastatin 2-Fluoro t-Butyl Ester
CAT No: VS-A114030
CAS No: N/A
Mol.F.: C40H47FN2O5
Mol.Wt.: 654.8
Status: Custom Synthesis
Atorvastatin 2-Hydroxy Analog
CAT No: VS-A114031
CAS No: 214217-86-4
Mol.F.: C33H34FN2O6 : 1/2(Ca)
Mol.Wt.: 574.7 : 1/2(40.1)
Status: Custom Synthesis
Atorvastatin 2-Hydroxy Analog Sodium salt
CAT No: VS-A114033
CAS No: 163217-75-2
Mol.F.: C33H34FN2NaO6
Mol.Wt.: 596.6
Status: Custom Synthesis
Atorvastatin 2-Hydroxy Lactone
CAT No: VS-A114032
CAS No: 163217-74-1
Mol.F.: C33H33FN205
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin 3-Deoxy-Hept-2-Enoic Acid Ethyl Ester
CAT No: VS-A114034
CAS No: 1624328-52-4
Mol.F.: C35H37FN2O4
Mol.Wt.: 568.7
Status: In Stock
Atorvastatin 3-Oxo Methyl Ester
CAT No: VS-A114037
CAS No: 110862-47-0
Mol.F.: C33H35FN2O5
Mol.Wt.: 570.7
Status: Custom Synthesis
Atorvastatin 3-Oxopropyl Impurity
CAT No: VS-A114038
CAS No: 110862-46-9
Mol.F.: C29H27FN2O2
Mol.Wt.: 454.5
Status: Custom Synthesis
Atorvastatin 4-Hydroxy Calcium
CAT No: VS-A114039
CAS No: 1263176-34-6
Mol.F.: C33H34FN2O6 : 1/2(Ca)
Mol.Wt.: 573.6 : 1/2(40.1)
Status: Custom Synthesis
Atorvastatin 4-Hydroxy Lactone
CAT No: VS-A114041
CAS No: 163217-70-7
Mol.F.: C33H33FN2O5
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin 5-O-Methyl Sodium
CAT No: VS-A114042
CAS No: N/A
Mol.F.: C34H36FN2NaO5
Mol.Wt.: 594.7
Status: Custom Synthesis
Atorvastatin 5-Oxo Acid
CAT No: VS-A114043
CAS No: 1391052-82-6
Mol.F.: C33H33FN2O5
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Acetonide Methyl Ester
CAT No: VS-A114044
CAS No: 1353049-81-6
Mol.F.: C37H41FN2O5
Mol.Wt.: 612.7
Status: Custom Synthesis
Atorvastatin Acetonide t-Butyl Ester (3S,5S)-Isomer
CAT No: VS-A114045
CAS No: 472967-95-6
Mol.F.: C40H47FN2O5
Mol.Wt.: 654.8
Status: Custom Synthesis
Atorvastatin Acetonide t-Butyl Ester Side Chain (4R,6R)-Isomer
CAT No: VS-A114047
CAS No: 125971-94-0
Mol.F.: C14H23NO4
Mol.Wt.: 269.3
Status: In Stock
Atorvastatin Acetonide t-Butyl Ester Side Chain (4R,6S)-Isomer
CAT No: VS-A114048
CAS No: 196085-84-4
Mol.F.: C14H23NO4
Mol.Wt.: 269.3
Status: In Stock
Atorvastatin Acetonide t-Butyl Ester Side Chain (4S,6R)-Isomer
CAT No: VS-A114049
CAS No: 186508-95-2
Mol.F.: C14H23NO4
Mol.Wt.: 269.3
Status: In Stock
Atorvastatin Acetonide t-Butyl Ester Side Chain (4S,6S)-Isomer
CAT No: VS-A114050
CAS No: 196085-85-5
Mol.F.: C14H23NO4
Mol.Wt.: 269.3
Status: Custom Synthesis
Atorvastatin Acid Isopropyl Ester
CAT No: VS-A114052
CAS No: 1035205-25-4
Mol.F.: C36H41FN2O5
Mol.Wt.: 600.7
Status: Custom Synthesis
Atorvastatin Acid
CAT No: VS-A114051
CAS No: 134523-00-5
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.6
Status: Custom Synthesis
Atorvastatin Acid Sodium salt
CAT No: VS-A114035
CAS No: 134523-01-6
Mol.F.: C33H34FN2NaO5
Mol.Wt.: 580.6
Status: Custom Synthesis
Atorvastatin Acyl-beta-D-Glucuronide
CAT No: VS-A114053
CAS No: 463962-58-5
Mol.F.: C39H43FN2O11
Mol.Wt.: 734.8
Status: Custom Synthesis
Atorvastatin Amide
CAT No: VS-A114076
CAS No: 2125501-02-0
Mol.F.: C33H36FN3O4
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Calcium
CAT No: VS-A114075
CAS No: 134523-03-8
Mol.F.: C33H35FN2O5 : 1/2(Ca)
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Calcium Trihydrate
CAT No: VS-A114001
CAS No: 344423-98-9
Mol.F.: C33H34FN2O5 : 1/2(Ca) : 3/2H2O
Mol.Wt.: 557.6 : 1/2(40.1) : 3/2(18.0)
Status: Custom Synthesis
Atorvastatin Diamino Impurity
CAT No: VS-A114074
CAS No: 1116118-82-1
Mol.F.: C50H64FN3O8
Mol.Wt.: 854.06
Status: Custom Synthesis
Atorvastatin Diepoxide
CAT No: VS-A114104
CAS No: 887470-43-1
Mol.F.: C33H35FN2O7
Mol.Wt.: 590.6
Status: Custom Synthesis
Atorvastatin Diepoxide Calcium Salt
CAT No: VS-A114054
CAS No: 1807481-01-1
Mol.F.: C33H34FN2O7 : 1/2(Ca)
Mol.Wt.: 589.6 : 1/2(40.1)
Status: In Stock
Atorvastatin Diepoxide Lactone
CAT No: VS-A114055
CAS No: 2591410-14-7
Mol.F.: C33H33FN2O6
Mol.Wt.: 572.6
Status: Custom Synthesis
Atorvastatin Difluoro Impurity
CAT No: VS-A114101
CAS No: 693793-82-7
Mol.F.: C26H23F2NO3
Mol.Wt.: 435.46
Status: Custom Synthesis
Atorvastatin Diketo Amide 2-Fluoro Analog
CAT No: VS-A114056
CAS No: 1797905-42-0
Mol.F.: C26H24FNO3
Mol.Wt.: 417.5
Status: Custom Synthesis
Atorvastatin Diketo Amide Impurity
CAT No: VS-A114057
CAS No: 125971-96-2
Mol.F.: C26H24FNO3
Mol.Wt.: 417.5
Status: Custom Synthesis
Atorvastatin Diketoene Impurity
CAT No: VS-A114058
CAS No: 1331869-19-2
Mol.F.: C26H22FNO3
Mol.Wt.: 415.5
Status: Custom Synthesis
Atorvastatin EP Impurity A
CAT No: VS-A114109
CAS No: 433289-84-0
Mol.F.: C33H36N2O5
Mol.Wt.: 540.65
Status: Custom Synthesis
Atorvastatin EP Impurity A (Calcium salt)
CAT No: VS-A114102
CAS No: 433289-83-9
Mol.F.: C66H70CaN4O10
Mol.Wt.: 1119.38
Status: Custom Synthesis
Atorvastatin EP Impurity A (Sodium)
CAT No: VS-A114002
CAS No: 1516864-05-3
Mol.F.: C33H35N2O5 : Na
Mol.Wt.: 539.7 : 23.0
Status: Custom Synthesis
Atorvastatin EP Impurity B
CAT No: VS-A114003
CAS No: 842103-12-2
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.7
Status: Custom Synthesis
Atorvastatin EP Impurity C
CAT No: VS-A114006
CAS No: 693794-20-6
Mol.F.: C33H34F2N2O5
Mol.Wt.: 576.6
Status: In Stock
Atorvastatin EP Impurity C (Calcium Salt)
CAT No: VS-A114100
CAS No: 693793-53-2
Mol.F.: C66H68CaF2N4O10
Mol.Wt.: 1191.34
Status: Custom Synthesis
Atorvastatin EP Impurity D (D1)
CAT No: VS-A114007
CAS No: 148146-51-4
Mol.F.: C26H22FNO4
Mol.Wt.: 431.5
Status: Custom Synthesis
Atorvastatin EP Impurity E
CAT No: VS-A114107
CAS No: 501121-34-2
Mol.F.: C33H35FN2O5
Mol.Wt.: 558.2
Status: Custom Synthesis
Atorvastatin EP Impurity E (Calcium Salt)
CAT No: VS-A114009
CAS No: 1105067-88-6
Mol.F.: C33H34FN2O5 : 1/2(Ca)
Mol.Wt.: 557.6 : 1/2 (40.1)
Status: Custom Synthesis
Atorvastatin EP Impurity E (Sodium Salt)
CAT No: VS-A114008
CAS No: 1428118-38-0
Mol.F.: C33H34FN2NaO5
Mol.Wt.: 580.2
Status: Custom Synthesis
Atorvastatin EP Impurity F
CAT No: VS-A114010
CAS No: 887196-24-9
Mol.F.: C40H48FN3O8
Mol.Wt.: 717.8
Status: In Stock
Atorvastatin EP Impurity F (Calcium Salt)
CAT No: VS-A114011
CAS No: 1105067-87-5
Mol.F.: C40H48FN3O8 : 1/2(Ca)
Mol.Wt.: 717.8 : 1/2(40.1)
Status: Custom Synthesis
Atorvastatin EP Impurity G
CAT No: VS-A114012
CAS No: 887324-53-0
Mol.F.: C34H37FN2O5
Mol.Wt.: 572.67
Status: Custom Synthesis
Atorvastatin EP Impurity G (Calcium Salt)
CAT No: VS-A114013
CAS No: 887196-29-4
Mol.F.: C34H36FN2O5 : Ca
Mol.Wt.: 571.7 : 40.1
Status: Custom Synthesis
Atorvastatin EP Impurity H
CAT No: VS-A114014
CAS No: 125995-03-1
Mol.F.: C33H33FN2O4
Mol.Wt.: 540.6
Status: Custom Synthesis
Atorvastatin EP Impurity I
CAT No: VS-A114015
CAS No: 125971-95-1
Mol.F.: C40H47FN2O5
Mol.Wt.: 654.8
Status: Custom Synthesis
Atorvastatin EP Impurity J
CAT No: VS-A114016
CAS No: 1105067-93-3
Mol.F.: C33H33FN2O4
Mol.Wt.: 540.6
Status: Custom Synthesis
Atorvastatin EP Impurity K
CAT No: VS-A114018
CAS No: 345891-62-5
Mol.F.: C34H37FN2O5
Mol.Wt.: 572.7
Status: Custom Synthesis
Atorvastatin EP Impurity M
CAT No: VS-A114017
CAS No: 1146977-93-6
Mol.F.: C35H39FN2O5
Mol.Wt.: 586.7
Status: Custom Synthesis
Atorvastatin EP Impurity N
CAT No: VS-A114019
CAS No: 134395-00-9
Mol.F.: C37H43FN2O5
Mol.Wt.: 614.9
Status: Custom Synthesis
Atorvastatin EP Impurity O
CAT No: VS-A114093
CAS No: 887196-30-7
Mol.F.: C33H33FN2O5
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin EP Impurity O (Calcium Salt)
CAT No: VS-A114125
CAS No: NA
Mol.F.: C66H64CaF2N4O10
Mol.Wt.: 1151.31
Status: Custom Synthesis
Atorvastatin EP Impurity O Sodium salt
CAT No: VS-A114036
CAS No: NA
Mol.F.: C33H32FN2O5 : Na
Mol.Wt.: 555.6 : 23.0
Status: Custom Synthesis
Atorvastatin EP Impurity P
CAT No: VS-A114020
CAS No: 581772-29-4
Mol.F.: C36H39FN2O5
Mol.Wt.: 598.7
Status: Custom Synthesis
Atorvastatin EP Impurity P (Sodium salt)
CAT No: VS-A114021
CAS No: 862260-38-6
Mol.F.: C36H39FN2O5 : Na
Mol.Wt.: 598.7 : 23.0
Status: Custom Synthesis
Atorvastatin EP Impurity P Calcium
CAT No: VS-A114132
CAS No: 929540-41-0
Mol.F.: C36H39FN2O5.Ca
Mol.Wt.:
Status: Custom Synthesis
Atorvastatin EP Impurity Q
CAT No: VS-A114022
CAS No: 906552-18-9
Mol.F.: C33H35FN2O6
Mol.Wt.: 574.6
Status: Custom Synthesis
Atorvastatin Epoxy Pyrrolooxazin 6-Hydroxy Analog
CAT No: VS-A114117
CAS No: 873950-17-5
Mol.F.: C33H35FN2O7
Mol.Wt.: 590.64
Status: Custom Synthesis
Atorvastatin Epoxy Pyrrolooxazin 6-Hydroxy Analog (USP) (SODIUM SALT)
CAT No: VS-A114061
CAS No: 1316291-19-6
Mol.F.: C33H34FN2O7 : Na
Mol.Wt.: 589.6 : 23.0
Status: In Stock
Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy Analog Calcium Salt (usp)
CAT No: VS-A114122
CAS No: NA
Mol.F.: C66H68CaF2N4O14
Mol.Wt.: 1219.36
Status: Custom Synthesis
Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy Analog Sodium salt (USP)
CAT No: VS-A114060
CAS No: 1315629-79-8
Mol.F.: C33H34FN2O7 : Na
Mol.Wt.: 589.6 : 23.0
Status: Custom Synthesis
Atorvastatin Epoxy Pyrrolooxazin Tricyclic Analog
CAT No: VS-A114023
CAS No: N/A
Mol.F.: C33H33FN2O6
Mol.Wt.: 572.6
Status: Custom Synthesis
Atorvastatin Epoxy Tetrahydrofuran Analog (USP)
CAT No: VS-A114059
CAS No: 873950-19-7
Mol.F.: C26H24FNO5
Mol.Wt.: 449.5
Status: Custom Synthesis
Atorvastatin Impurity 11
CAT No: VS-A114082
CAS No: 616201-27-5
Mol.F.: C38H43FN2O5
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Impurity 13
CAT No: VS-A114084
CAS No: 62148-67-8
Mol.F.: C14H10ClFO
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Impurity 14
CAT No: VS-A114085
CAS No: 1403667-07-1
Mol.F.: C14H9Cl2FO
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Impurity 15
CAT No: VS-A114086
CAS No: 444577-70-2
Mol.F.: C26H25NO3
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Impurity 16
CAT No: VS-A114087
CAS No: 363599-73-9
Mol.F.: C36H39FN2O5
Mol.Wt.: 556.6
Status: Custom Synthesis
Atorvastatin Impurity 17
CAT No: VS-A114088
CAS No: 666714-64-3
Mol.F.: C26H23FN2O
Mol.Wt.: 398.5
Status: Custom Synthesis
Atorvastatin Impurity 18
CAT No: VS-A114089
CAS No: 141942-85-0
Mol.F.: C7H11NO3
Mol.Wt.: 157.2
Status: Custom Synthesis
Atorvastatin Impurity 20
CAT No: VS-A114091
CAS No: 873950-18-6
Mol.F.: C33H35FN2O7
Mol.Wt.: 590.64
Status: Custom Synthesis
Atorvastatin Impurity 21
CAT No: VS-A114092
CAS No: N/A
Mol.F.: C37H43N3O6
Mol.Wt.: 625.8
Status: Custom Synthesis
Atorvastatin Impurity 22
CAT No: VS-A114110
CAS No: 2514955-94-1
Mol.F.: C14H9Br2FO
Mol.Wt.: 372.03
Status: Custom Synthesis
Atorvastatin Impurity 23
CAT No: VS-A114111
CAS No: 40281-50-3
Mol.F.: C14H11FO
Mol.Wt.: 214.2
Status: Custom Synthesis
Atorvastatin Impurity 24
CAT No: VS-A114113
CAS No: 2299304-89-3
Mol.F.: C24H44N2O7
Mol.Wt.: 472.6
Status: Custom Synthesis
Atorvastatin Impurity 25
CAT No: VS-A114115
CAS No: NA
Mol.F.: C60H81FN4O11
Mol.Wt.: 1053.3
Status: Custom Synthesis
Atorvastatin Impurity 26
CAT No: VS-A114116
CAS No: NA
Mol.F.: C47H60FN4O11 : Ca
Mol.Wt.: 876.0 : 40.1
Status: Custom Synthesis
Atorvastatin Impurity 37
CAT No: VS-A114121
CAS No: 88675-31-4
Mol.F.: C14H10BrFO
Mol.Wt.: 293.1
Status: In Stock
Atorvastatin Impurity 38
CAT No: VS-A114123
CAS No: 347-84-2
Mol.F.: C14H11FO
Mol.Wt.: 214.2
Status: In Stock
Atorvastatin impurity 39
CAT No: VS-A114119
CAS No: 1371615-55-2
Mol.F.: C47H60FN3O8
Mol.Wt.: 814.01
Status: In Stock
Atorvastatin Impurity 40
CAT No: VS-A114124
CAS No: 1821498-27-4
Mol.F.: C27H30FNO6
Mol.Wt.: 483.5
Status: Custom Synthesis
Atorvastatin Impurity 41
CAT No: VS-A114127
CAS No: 125971-93-9
Mol.F.: C11H19NO4
Mol.Wt.: 229.3
Status: Custom Synthesis
Atorvastatin Lactam Calcium Salt Impurity
CAT No: VS-A114131
CAS No: 148127-11-1
Mol.F.: C33H37CaFN2O6
Mol.Wt.: 616.74
Status: Custom Synthesis
Atorvastatin Lactone 3-O-Methyl Ether
CAT No: VS-A114062
CAS No: N/A
Mol.F.: C34H35FN2O4
Mol.Wt.: 554.7
Status: Custom Synthesis
Atorvastatin lactone diepoxide
CAT No: VS-A114103
CAS No: 842162-99-6
Mol.F.: C₃₉H₄₇FN₂O₄Si
Mol.Wt.: 654.89
Status: Custom Synthesis
