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Oseltamivir
Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Oseltamivir reference materials. Our portfolio includes both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamine derivatives (N-NO products). These reference standards play a crucial role in pharmaceutical R&D, aiding in formulation development, ANDA/DMF submissions, quality control, method validation, stability studies, and impurity profiling—including the identification and assessment of potentially genotoxic impurities.
Each Oseltamivir-related product is rigorously characterized and delivered with a detailed Certificate of Analysis (COA) and comprehensive analytical data to ensure regulatory compliance. Upon request, we also offer EP/USP traceable standards. To maintain the highest quality standards, all materials are subject to periodic re-testing and continuous quality monitoring.
Oseltamivir Phosphate
CAT No: VS-O023001
CAS No: 204255-11-8
Mol.F.: C16H28N2O4 : H3PO4
Mol.Wt.: 312.4 : 98.0
Status: Custom Synthesis
Oseltamivir EP Impurity A
CAT No: VS-O023002
CAS No: 1364932-19-3
Mol.F.: C14H24N2O4
Mol.Wt.: 284.4
Status: In Stock
Oseltamivir EP Impurity B
CAT No: VS-O023003
CAS No: N/A
Mol.F.: C16H29N5O4
Mol.Wt.: 355.4
Status: In Stock
Oseltamivir EP Impurity C
CAT No: VS-O023004
CAS No: 187227-45-8
Mol.F.: C14H24N2O4
Mol.Wt.: 284.4
Status: In Stock
Oseltamivir EP Impurity D
CAT No: VS-O023005
CAS No: 1346604-18-9
Mol.F.: C11H13NO4
Mol.Wt.: 223.2
Status: In Stock
Oseltamivir EP Impurity E
CAT No: VS-O023006
CAS No: 208720-71-2
Mol.F.: C15H26N2O4
Mol.Wt.: 298.4
Status: Custom Synthesis
Oseltamivir EP Impurity G
CAT No: VS-O023007
CAS No: 956267-10-0
Mol.F.: C16H28N2O4
Mol.Wt.: 312.4
Status: Custom Synthesis
Oseltamivir EP Impurity F
CAT No: VS-O023008
CAS No: 1052063-37-2
Mol.F.: C15H26N2O4
Mol.Wt.: 298.3
Status: In Stock
Oseltamivir EP Impurity H
CAT No: VS-O023009
CAS No: 814-29-9
Mol.F.: C12H27OP
Mol.Wt.: 218.3
Status: In Stock
5-Azido Oseltamivir
CAT No: VS-O023010
CAS No: 204255-06-1
Mol.F.: C16H26N4O4
Mol.Wt.: 338.4
Status: Custom Synthesis
Oseltamivir Citric acid Adduct
CAT No: VS-O023011
CAS No: N/A
Mol.F.: C22H34N2O10
Mol.Wt.: 486.5
Status: Custom Synthesis
Oseltamivir Citric Acid Adduct-2
CAT No: VS-O023012
CAS No: N/A
Mol.F.: C22H34N2O10
Mol.Wt.: 486.5
Status: Custom Synthesis
Oseltamavir Diamine Impurity
CAT No: VS-O023013
CAS No: 212504-89-7
Mol.F.: C14H26N2O3
Mol.Wt.: 270.4
Status: Custom Synthesis
Oseltamivir RSS Isomer
CAT No: VS-O023014
CAS No: 2413185-97-2
Mol.F.: C26H44N2O4
Mol.Wt.: 448.6
Status: Custom Synthesis
Oseltamivir RSR Isomer
CAT No: VS-O023015
CAS No: 2413185-98-3
Mol.F.: C26H44N2O4
Mol.Wt.: 448.6
Status: Custom Synthesis
Oseltamivir RRR Isomer
CAT No: VS-O023016
CAS No: 2413185-96-1
Mol.F.: C26H44N2O4
Mol.Wt.: 448.6
Status: Custom Synthesis
Oseltamavir Citric Acid Adduct Mix
CAT No: VS-O023017
CAS No: N/A
Mol.F.: C22H34N2O10
Mol.Wt.: 486.5
Status: Custom Synthesis
Oseltamivir Glucose Adduct-1
CAT No: VS-O023018
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Fructose Adduct-1
CAT No: VS-O023019
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Fructose Adduct-2
CAT No: VS-O023020
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Glucose Adduct-2
CAT No: VS-O023021
CAS No: N/A
Mol.F.: C20H32N2O8
Mol.Wt.: 428.5
Status: Custom Synthesis
Oseltamivir Impurity 1
CAT No: VS-O023022
CAS No: N/A
Mol.F.: C18H30N2O5
Mol.Wt.: 354.5
Status: Custom Synthesis
Oseltamivir Impurity 3
CAT No: VS-O023023
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Impurity 4
CAT No: VS-O023024
CAS No: N/A
Mol.F.: C22H32N2O6
Mol.Wt.: 420.5
Status: Custom Synthesis
Oseltamivir Impurity 5
CAT No: VS-O023025
CAS No: N/A
Mol.F.: C22H32N2O9
Mol.Wt.: 468.5
Status: Custom Synthesis
Oseltamivir Impurity 6
CAT No: VS-O023026
CAS No: 651324-04-8
Mol.F.: C18H33NO4
Mol.Wt.: 327.5
Status: In Stock
Oseltamivir Impurity 7
CAT No: VS-O023027
CAS No: N/A
Mol.F.: C22H32N2O6
Mol.Wt.: 420.5
Status: Custom Synthesis
Oseltamivir Impurity 8
CAT No: VS-O023028
CAS No: 204254-96-6
Mol.F.: C14H22O4
Mol.Wt.: 254.3
Status: Custom Synthesis
Oseltamivir Impurity 9
CAT No: VS-O023029
CAS No: N/A
Mol.F.: C22H32N2O6
Mol.Wt.: 420.5
Status: Custom Synthesis
Oseltamivir Impurity 10
CAT No: VS-O023030
CAS No: N/A
Mol.F.: C17H28N2O4
Mol.Wt.: 324.4
Status: Custom Synthesis
Oseltamivir Impurity 11
CAT No: VS-O023031
CAS No: 1266663-89-1
Mol.F.: C14H22O4
Mol.Wt.: 254.3
Status: Custom Synthesis
Oseltamivir Impurity 12
CAT No: VS-O023032
CAS No: 2413185-89-2
Mol.F.: C14H22O4
Mol.Wt.: 254.3
Status: Custom Synthesis
Oseltamivir Impurity 13
CAT No: VS-O023033
CAS No: 2413185-88-1
Mol.F.: C14H22O4
Mol.Wt.: 254.3
Status: Custom Synthesis
Oseltamivir Impurity 14
CAT No: VS-O023034
CAS No: 2417645-75-9
Mol.F.: C18H31NO3
Mol.Wt.: 309.5
Status: In Stock
Oseltamivir Impurity 15
CAT No: VS-O023035
CAS No: 651324-06-0
Mol.F.: C24H42N2O3
Mol.Wt.: 406.6
Status: In Stock
Oseltamivir Impurity 16
CAT No: VS-O023036
CAS No: 651324-07-1
Mol.F.: C26H44N2O4
Mol.Wt.: 448.6
Status: Custom Synthesis
Oseltamivir Impurity 17
CAT No: VS-O023037
CAS No: 1151665-78-9
Mol.F.: C14H20O3
Mol.Wt.: 236.3
Status: Custom Synthesis
Oseltamivir Impurity 18
CAT No: VS-O023038
CAS No: N/A
Mol.F.: C26H44N2O3
Mol.Wt.: 432.6
Status: Custom Synthesis
Oseltamivir Impurity 19
CAT No: VS-O023039
CAS No: N/A
Mol.F.: C26H44N2O3
Mol.Wt.: 432.6
Status: Custom Synthesis
Oseltamivir Impurity 20
CAT No: VS-O023040
CAS No: 651324-08-2
Mol.F.: C26H44N2O4 : HCl
Mol.Wt.: 448.6 : 36.5
Status: Custom Synthesis
Oseltamivir Impurity 21
CAT No: VS-O023041
CAS No: 347378-74-9
Mol.F.: C14H22O4
Mol.Wt.: 254.3
Status: Custom Synthesis
Oseltamivir Impurity 22
CAT No: VS-O023042
CAS No: N/A
Mol.F.: C14H24N2O4 : H3O4P
Mol.Wt.: 284.4 : 98.0
Status: Custom Synthesis
Oseltamivir Impurity 23
CAT No: VS-O023043
CAS No: 1035895-88-5
Mol.F.: C16H28N2O4
Mol.Wt.: 312.4
Status: Custom Synthesis
Oseltamivir Impurity 24
CAT No: VS-O023044
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Impurity 25
CAT No: VS-O023045
CAS No: N/A
Mol.F.: C22H38N2O9
Mol.Wt.: 474.6
Status: Custom Synthesis
Oseltamivir Impurity 26
CAT No: VS-O023046
CAS No: N/A
Mol.F.: C16H28N2O4 : HCl
Mol.Wt.: 312.4 : 36.5
Status: Custom Synthesis
Oseltamivir Impurity 27
CAT No: VS-O023047
CAS No: N/A
Mol.F.: C16H28N2O4 : HCl
Mol.Wt.: 312.4 : 36.5
Status: Custom Synthesis
Oseltamivir Impurity 28
CAT No: VS-O023048
CAS No: 2413185-95-0
Mol.F.: C16H28N2O4
Mol.Wt.: 312.4
Status: Custom Synthesis
Oseltamivir Impurity 29
CAT No: VS-O023049
CAS No: 2081110-44-1
Mol.F.: C16H28N2O4
Mol.Wt.: 312.4
Status: Custom Synthesis
Oseltamivir Impurity 26
CAT No: VS-O023050
CAS No: N/A
Mol.F.: C16H28N2O4 : HCl
Mol.Wt.: 312.4 : 36.5
Status: Custom Synthesis
Oseltamivir Impurity 27
CAT No: VS-O023051
CAS No: N/A
Mol.F.: C14H24N2O4 : HCl
Mol.Wt.: 284.4 : 36.5
Status: Custom Synthesis
Oseltamivir Impurity 28
CAT No: VS-O023052
CAS No: 204254-98-8
Mol.F.: C14H23N3O4
Mol.Wt.: 297.4
Status: Custom Synthesis
N-Desacetyl 5-Azido Oseltamivir
CAT No: VS-O023053
CAS No: 204255-04-9
Mol.F.: C14H24N4O3
Mol.Wt.: 296.4
Status: Custom Synthesis
Oseltamivir Impurity 29
CAT No: VS-O023054
CAS No: 204255-02-7
Mol.F.: C14H23NO3
Mol.Wt.: 253.3
Status: Custom Synthesis
Oseltamivir Nitroso Impurity 1
CAT No: VS-O023055
CAS No: NA
Mol.F.: C14H22N2O4
Mol.Wt.: 282.3
Status: Custom Synthesis
Oseltamivir Impurity 30
CAT No: VS-O023056
CAS No: NA
Mol.F.: C13H20O4
Mol.Wt.: 240.3
Status: Custom Synthesis
Oseltamivir
CAT No: VS-O023057
CAS No: 196618-13-0
Mol.F.: C16H28N2O4
Mol.Wt.: 312.4
Status: Custom Synthesis
Oseltamivir Impurity 31
CAT No: VS-O023058
CAS No: 204254-94-4
Mol.F.: C15H26O7S
Mol.Wt.: 350.4
Status: In Stock
Oseltamivir EP Impurity E (HCl)
CAT No: VS-O023059
CAS No: 208720-78-9
Mol.F.: C15H26N2O4 : HCl
Mol.Wt.: 298.38 : 36.5
Status: In Stock
Oseltamivir Hydrochloride
CAT No: VS-O023060
CAS No: 204255-09-4
Mol.F.: C16H28N2O4 : HCl
Mol.Wt.: 312.41 : 36.5
Status: In Stock
Oseltamivir Hydroxy Epoxide Impurity
CAT No: VS-O023061
CAS No: 876014-27-6
Mol.F.: C9H12O4
Mol.Wt.: 184.2
Status: Custom Synthesis
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