Lopinavir 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.
Lopinavir (2S,4R,5R) isomer
CAT No: VS-L054032
CAS No: N/A
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir 4R-Epimer
CAT No: VS-L054029
CAS No: N/A
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir Amino Alcohol Urea
CAT No: VS-L054028
CAS No: N/A
Mol.F.: C27H38N4O3
Mol.Wt.: 466.6
Status: Custom Synthesis
Lopinavir EP Impurity A
CAT No: VS-L054001
CAS No: 192726-05-9
Mol.F.: C27H38N4O3
Mol.Wt.: 466.6
Status: In Stock
Lopinavir EP Impurity B
CAT No: VS-L054002
CAS No: N/A
Mol.F.: C28H38N4O4
Mol.Wt.: 494.6
Status: Custom Synthesis
Lopinavir EP Impurity C
CAT No: VS-L054003
CAS No: N/A
Mol.F.: C36H52N6O5
Mol.Wt.: 648.8
Status: Custom Synthesis
Lopinavir EP Impurity D
CAT No: VS-L054004
CAS No: N/A
Mol.F.: C37H48N4O8S
Mol.Wt.: 708.9
Status: In Stock
Lopinavir EP Impurity E
CAT No: VS-L054005
CAS No: 192725-49-8
Mol.F.: C28H34N2O3
Mol.Wt.: 446.6
Status: In Stock
Lopinavir EP Impurity E Hydrochloride
CAT No: VS-L054006
CAS No: 2068137-94-8
Mol.F.: C28H34N2O3 : HCl
Mol.Wt.: 446.6 : 36.5
Status: Custom Synthesis
Lopinavir EP Impurity F
CAT No: VS-L054007
CAS No: N/A
Mol.F.: C29H34N2O4
Mol.Wt.: 474.6
Status: In Stock
Lopinavir EP Impurity G
CAT No: VS-L054008
CAS No: N/A
Mol.F.: C30H36N2O4
Mol.Wt.: 488.6
Status: Custom Synthesis
Lopinavir EP Impurity H
CAT No: VS-L054009
CAS No: N/A
Mol.F.: C29H32N2O4
Mol.Wt.: 472.6
Status: Custom Synthesis
Lopinavir EP Impurity I
CAT No: VS-L054010
CAS No: N/A
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: In Stock
Lopinavir EP Impurity J
CAT No: VS-L054011
CAS No: N/A
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir EP Impurity K
CAT No: VS-L054012
CAS No: 1623021-24-8
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir EP Impurity L
CAT No: VS-L054013
CAS No: N/A
Mol.F.: C22H26N2O4
Mol.Wt.: 382.5
Status: Custom Synthesis
Lopinavir EP Impurity M
CAT No: VS-L054014
CAS No: N/A
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir EP Impurity N
CAT No: VS-L054015
CAS No: 1798014-18-2
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir EP Impurity O
CAT No: VS-L054016
CAS No: N/A
Mol.F.: C46H62N6O7
Mol.Wt.: 811
Status: Custom Synthesis
Lopinavir EP Impurity P
CAT No: VS-L054017
CAS No: 1217628-64-2
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
Lopinavir EP Impurity Q
CAT No: VS-L054018
CAS No: 667904-94-1
Mol.F.: C38H44N2O5
Mol.Wt.: 608.8
Status: Custom Synthesis
Lopinavir EP Impurity R
CAT No: VS-L054019
CAS No: 943250-66-6
Mol.F.: C47H58N4O7
Mol.Wt.: 791
Status: Custom Synthesis
Lopinavir EP Impurity S
CAT No: VS-L054020
CAS No: 943250-65-5
Mol.F.: C47H58N4O7
Mol.Wt.: 791
Status: Custom Synthesis
Lopinavir EP Impurity T
CAT No: VS-L054021
CAS No: 1797024-56-6
Mol.F.: C57H66N4O7
Mol.Wt.: 919.2
Status: In Stock
Lopinavir Free Amine
CAT No: VS-L054033
CAS No: N/A
Mol.F.: C27H38N4O3
Mol.Wt.: 466.6
Status: Custom Synthesis
Lopinavir Hydroxypropyl Carbamate Analog
CAT No: VS-L054042
CAS No: 1010809-50-3
Mol.F.: C32H42N4O7S
Mol.Wt.: 626.8
Status: Custom Synthesis
Lopinavir Impurity 1
CAT No: VS-L054035
CAS No: N/A
Mol.F.: C37H46N4O5
Mol.Wt.: 626.8
Status: Custom Synthesis
Lopinavir Impurity 2
CAT No: VS-L054036
CAS No: 1370045-08-1
Mol.F.: C9H16N2O3
Mol.Wt.: 200.2
Status: Custom Synthesis
Lopinavir Impurity 3
CAT No: VS-L054037
CAS No: N/A
Mol.F.: C38H50N4O5
Mol.Wt.: 642.8
Status: Custom Synthesis
Lopinavir Impurity 4
CAT No: VS-L054038
CAS No: N/A
Mol.F.: C38H50N4O5
Mol.Wt.: 642.8
Status: Custom Synthesis
Lopinavir Impurity 6
CAT No: VS-L054039
CAS No: 13335-71-2
Mol.F.: C10H12O3
Mol.Wt.: 180.2
Status: Custom Synthesis
Lopinavir Impurity 7
CAT No: VS-L054041
CAS No: 943238-68-4
Mol.F.: C35H44N4O5
Mol.Wt.: 600.75
Status: Custom Synthesis
Lopinavir Impurity A
CAT No: VS-L054022
CAS No: 162849-93-6
Mol.F.: C37H44N2O3
Mol.Wt.: 564.8
Status: Custom Synthesis
Lopinavir Impurity B
CAT No: VS-L054023
CAS No: 943238-69-5
Mol.F.: C38H50N4O5
Mol.Wt.: 642.8
Status: Custom Synthesis
Lopinavir Leucine Analog
CAT No: VS-L054034
CAS No: 192725-50-1
Mol.F.: C9H16N2O3
Mol.Wt.: 200.2
Status: Custom Synthesis
Lopinavir Metabolite M3-M4 (Mixture of Diastereomers)
CAT No: VS-L054030
CAS No: 357275-54-8
Mol.F.: C37H48N4O6
Mol.Wt.: 644.8
Status: Custom Synthesis
Lopinavir Pentanamide Analog
CAT No: VS-L054026
CAS No: 1132765-59-3
Mol.F.: C38H50N4O5
Mol.Wt.: 642.8
Status: Custom Synthesis
Lopinavir Phenoxyacetamide
CAT No: VS-L054040
CAS No: 943238-70-8
Mol.F.: C28H34N2O3
Mol.Wt.: 446.58
Status: Custom Synthesis
Lopinavir Related Compound C
CAT No: VS-L054024
CAS No: 2125942-48-3
Mol.F.: C30H33F3N2O4
Mol.Wt.: 542.6
Status: In Stock
Metabolite M1 Impurity
CAT No: VS-L054031
CAS No: 192725-39-6
Mol.F.: C37H46N4O6
Mol.Wt.: 642.8
Status: Custom Synthesis
Sulfolopinavir
CAT No: VS-L054027
CAS No: N/A
Mol.F.: C37H48N4O8S
Mol.Wt.: 708.9
Status: Custom Synthesis
