Sofosbuvir 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.
2(R)-Methyl Sofosbuvir
CAT No: VS-S031003
CAS No: 1496552-28-3
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
2(R)-Methyl Sofosbuvir alpha-Isomer
CAT No: VS-S031010
CAS No: 1064684-71-4
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
2',3'-Beta Sofosbuvir
CAT No: VS-S031021
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
2',3'-Beta Sofosbuvir alpha-Isomer
CAT No: VS-S031022
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
2'-Alkene Sofosbuvir
CAT No: VS-S031015
CAS No: 2095551-20-3
Mol.F.: C22H28N3O9P
Mol.Wt.: 509.5
Status: Custom Synthesis
2'-Hydroxy Sofosbuvir
CAT No: VS-S031013
CAS No: N/A
Mol.F.: C22H30N3O10P
Mol.Wt.: 527.5
Status: Custom Synthesis
2'-Keto Sofosbuvir
CAT No: VS-S031014
CAS No: N/A
Mol.F.: C21H26N3O10P
Mol.Wt.: 511.4
Status: Custom Synthesis
2'-S-Fluoro Sofosbuvir
CAT No: VS-S031006
CAS No: 1987957-28-7
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
2'-S-Fluoro Sofosbuvir alpha-Isomer
CAT No: VS-S031009
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
3'-Beta Sofosbuvir
CAT No: VS-S031017
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
3'-Beta Sofosbuvir alpha-Isomer
CAT No: VS-S031018
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
Ethyl Sofosbuvir analog
CAT No: VS-S031020
CAS No: 2164516-85-0
Mol.F.: C21H27FN3O9P
Mol.Wt.: 515.4
Status: Custom Synthesis
O-Desphenyl Sofosbuvir
CAT No: VS-S031004
CAS No: 1233335-82-4
Mol.F.: C16H25FN3O9P
Mol.Wt.: 453.4
Status: Custom Synthesis
Propyl Sofosbuvir analog
CAT No: VS-S031019
CAS No: 2190510-86-0
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
RP-Isomer of Sofosbuvir
CAT No: VS-S031005
CAS No: 1190308-01-0
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: In Stock
Sofosbuvir 3',5'-Bis-O-Phosphoramidate
CAT No: VS-S031008
CAS No: 1337482-17-3
Mol.F.: C34H45FN4O13P2
Mol.Wt.: 798.7
Status: Custom Synthesis
Sofosbuvir 3',5'-Bis-O-Phosphoramidate alpha-Isomer
CAT No: VS-S031011
CAS No: N/A
Mol.F.: C35H47FN4O12P2
Mol.Wt.: 796.7
Status: Custom Synthesis
Sofosbuvir 3'-O-Phosphoramidate
CAT No: VS-S031007
CAS No: 1337482-15-1
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
Sofosbuvir 3'-O-Phosphoramidate alpha-Isomer
CAT No: VS-S031012
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
Sofosbuvir Acid
CAT No: VS-S031001
CAS No: 1859162-79-0
Mol.F.: C19H23FN3O9P
Mol.Wt.: 487.4
Status: Custom Synthesis
Sofosbuvir alpha-Isomer
CAT No: VS-S031002
CAS No: N/A
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.5
Status: Custom Synthesis
Sofosbuvir Chloro Analog
CAT No: VS-S031016
CAS No: 1496552-51-2
Mol.F.: C22H29ClN3O9P
Mol.Wt.: 545.9
Status: Custom Synthesis
Sofosbuvir Impurity 1
CAT No: VS-S031025
CAS No: 879551-04-9
Mol.F.: C6H9FO4
Mol.Wt.: 164.1
Status: Custom Synthesis
Sofosbuvir Impurity 10
CAT No: VS-S031034
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 100
CAT No: VS-S031123
CAS No: 2095879-16-4
Mol.F.: C33H28FN3O7
Mol.Wt.: 597.6
Status: Custom Synthesis
Sofosbuvir Impurity 101
CAT No: VS-S031124
CAS No: 2766447-19-0
Mol.F.: C22H29FN3O9P
Mol.Wt.: 529.45
Status: Custom Synthesis
Sofosbuvir Impurity 102
CAT No: VS-S031121
CAS No: 2500766-09-4
Mol.F.: C23H32N3O10P
Mol.Wt.: 541.5
Status: Custom Synthesis
Sofosbuvir Impurity 11
CAT No: VS-S031035
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 12
CAT No: VS-S031036
CAS No: 2041584-99-8
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 13
CAT No: VS-S031037
CAS No: 1040882-61-8
Mol.F.: C6H9FO4
Mol.Wt.: 164.1
Status: Custom Synthesis
Sofosbuvir Impurity 15
CAT No: VS-S031038
CAS No: N/A
Mol.F.: C20H19FO6
Mol.Wt.: 374.4
Status: Custom Synthesis
Sofosbuvir Impurity 16
CAT No: VS-S031039
CAS No: N/A
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 17
CAT No: VS-S031040
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 18
CAT No: VS-S031041
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 19
CAT No: VS-S031042
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 2
CAT No: VS-S031026
CAS No: 874638-80-9
Mol.F.: C20H17FO6
Mol.Wt.: 372.4
Status: Custom Synthesis
Sofosbuvir Impurity 20
CAT No: VS-S031043
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 21
CAT No: VS-S031044
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 22
CAT No: VS-S031045
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 23
CAT No: VS-S031046
CAS No: 1987950-05-9
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 24
CAT No: VS-S031047
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 25
CAT No: VS-S031048
CAS No: 53008-90-5
Mol.F.: C6H10O5
Mol.Wt.: 162.1
Status: Custom Synthesis
Sofosbuvir Impurity 26
CAT No: VS-S031049
CAS No: 874638-79-6
Mol.F.: C20H18O7
Mol.Wt.: 370.4
Status: Custom Synthesis
Sofosbuvir Impurity 27
CAT No: VS-S031050
CAS No: N/A
Mol.F.: C20H20O7
Mol.Wt.: 372.4
Status: Custom Synthesis
Sofosbuvir Impurity 28
CAT No: VS-S031051
CAS No: N/A
Mol.F.: C20H19ClO6
Mol.Wt.: 390.8
Status: Custom Synthesis
Sofosbuvir Impurity 29
CAT No: VS-S031052
CAS No: 863329-62-8
Mol.F.: C31H27N3O8
Mol.Wt.: 569.6
Status: Custom Synthesis
Sofosbuvir Impurity 3
CAT No: VS-S031027
CAS No: 1884385-12-9
Mol.F.: C20H19FO6
Mol.Wt.: 374.4
Status: Custom Synthesis
Sofosbuvir Impurity 30
CAT No: VS-S031053
CAS No: N/A
Mol.F.: C31H27N3O8
Mol.Wt.: 569.6
Status: Custom Synthesis
Sofosbuvir Impurity 31
CAT No: VS-S031054
CAS No: N/A
Mol.F.: C24H23N3O7
Mol.Wt.: 465.5
Status: Custom Synthesis
Sofosbuvir Impurity 32
CAT No: VS-S031055
CAS No: N/A
Mol.F.: C24H23N3O7
Mol.Wt.: 465.5
Status: Custom Synthesis
Sofosbuvir Impurity 33
CAT No: VS-S031056
CAS No: 1910099-11-4
Mol.F.: C24H22N2O8
Mol.Wt.: 466.5
Status: Custom Synthesis
Sofosbuvir Impurity 34
CAT No: VS-S031057
CAS No: N/A
Mol.F.: C24H22N2O8
Mol.Wt.: 466.5
Status: Custom Synthesis
Sofosbuvir Impurity 35
CAT No: VS-S031058
CAS No: 114262-49-6
Mol.F.: C10H14N2O6
Mol.Wt.: 258.2
Status: Custom Synthesis
Sofosbuvir Impurity 36
CAT No: VS-S031059
CAS No: N/A
Mol.F.: C10H14N2O6
Mol.Wt.: 258.2
Status: Custom Synthesis
Sofosbuvir Impurity 37
CAT No: VS-S031060
CAS No: 1622930-61-3
Mol.F.: C6H9FO4
Mol.Wt.: 164.1
Status: Custom Synthesis
Sofosbuvir Impurity 38
CAT No: VS-S031061
CAS No: 1639833-40-1
Mol.F.: C20H17FO6
Mol.Wt.: 372.4
Status: Custom Synthesis
Sofosbuvir Impurity 39
CAT No: VS-S031062
CAS No: N/A
Mol.F.: C20H19FO6
Mol.Wt.: 374.4
Status: Custom Synthesis
Sofosbuvir Impurity 4
CAT No: VS-S031028
CAS No: 1621160-31-3
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 40
CAT No: VS-S031063
CAS No: N/A
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 41
CAT No: VS-S031064
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 42
CAT No: VS-S031065
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 43
CAT No: VS-S031066
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 44
CAT No: VS-S031067
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 45
CAT No: VS-S031068
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 46
CAT No: VS-S031069
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 47
CAT No: VS-S031070
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 48
CAT No: VS-S031071
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 49
CAT No: VS-S031072
CAS No: 863329-63-9
Mol.F.: C31H25N3O7
Mol.Wt.: 551.6
Status: Custom Synthesis
Sofosbuvir Impurity 5
CAT No: VS-S031029
CAS No: 817204-32-3
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 50
CAT No: VS-S031073
CAS No: 1580001-93-9
Mol.F.: C30H23N3O8
Mol.Wt.: 553.5
Status: Custom Synthesis
Sofosbuvir Impurity 51
CAT No: VS-S031074
CAS No: 1910099-17-0
Mol.F.: C24H20N2O7
Mol.Wt.: 448.4
Status: Custom Synthesis
Sofosbuvir Impurity 52
CAT No: VS-S031075
CAS No: 2073854-58-5
Mol.F.: C23H18N2O8
Mol.Wt.: 450.4
Status: Custom Synthesis
Sofosbuvir Impurity 53
CAT No: VS-S031076
CAS No: 119410-95-6
Mol.F.: C10H12N2O5
Mol.Wt.: 240.2
Status: Custom Synthesis
Sofosbuvir Impurity 54
CAT No: VS-S031077
CAS No: 16731-31-0
Mol.F.: C9H10N2O6
Mol.Wt.: 242.2
Status: Custom Synthesis
Sofosbuvir Impurity 55
CAT No: VS-S031078
CAS No: 1496551-65-5
Mol.F.: C20H17ClO6
Mol.Wt.: 388.8
Status: Custom Synthesis
Sofosbuvir Impurity 56
CAT No: VS-S031079
CAS No: 1496551-72-4
Mol.F.: C10H13ClN2O5
Mol.Wt.: 276.7
Status: Custom Synthesis
Sofosbuvir Impurity 57
CAT No: VS-S031080
CAS No: N/A
Mol.F.: C10H15FN2O11P2
Mol.Wt.: 420.2
Status: Custom Synthesis
Sofosbuvir Impurity 58
CAT No: VS-S031081
CAS No: 1015073-43-4
Mol.F.: C10H14FN2O8P
Mol.Wt.: 340.2
Status: Custom Synthesis
Sofosbuvir Impurity 59
CAT No: VS-S031082
CAS No: 1033394-92-1
Mol.F.: C6H9FO4
Mol.Wt.: 164.1
Status: Custom Synthesis
Sofosbuvir Impurity 6
CAT No: VS-S031030
CAS No: 874638-94-5
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 60
CAT No: VS-S031083
CAS No: 1033394-94-3
Mol.F.: C20H17FO6
Mol.Wt.: 372.4
Status: Custom Synthesis
Sofosbuvir Impurity 61
CAT No: VS-S031084
CAS No: N/A
Mol.F.: C20H19FO6
Mol.Wt.: 374.4
Status: Custom Synthesis
Sofosbuvir Impurity 62
CAT No: VS-S031085
CAS No: N/A
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 63
CAT No: VS-S031086
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 64
CAT No: VS-S031087
CAS No: N/A
Mol.F.: C31H26FN3O7
Mol.Wt.: 571.6
Status: Custom Synthesis
Sofosbuvir Impurity 65
CAT No: VS-S031088
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 66
CAT No: VS-S031089
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 67
CAT No: VS-S031090
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 68
CAT No: VS-S031091
CAS No: N/A
Mol.F.: C24H21FN2O7
Mol.Wt.: 468.4
Status: Custom Synthesis
Sofosbuvir Impurity 69
CAT No: VS-S031092
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 7
CAT No: VS-S031031
CAS No: N/A
Mol.F.: C24H22FN3O6
Mol.Wt.: 467.5
Status: Custom Synthesis
Sofosbuvir Impurity 70
CAT No: VS-S031093
CAS No: N/A
Mol.F.: C10H13FN2O5
Mol.Wt.: 260.2
Status: Custom Synthesis
Sofosbuvir Impurity 71
CAT No: VS-S031094
CAS No: 1496551-70-2
Mol.F.: C31H26ClN3O7
Mol.Wt.: 588
Status: Custom Synthesis
Sofosbuvir Impurity 72
CAT No: VS-S031095
CAS No: 1199809-23-8
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 73
CAT No: VS-S031096
CAS No: 1500076-79-8
Mol.F.: C20H18ClFO5
Mol.Wt.: 392.8
Status: Custom Synthesis
Sofosbuvir Impurity 74
CAT No: VS-S031097
CAS No: 1233335-78-8
Mol.F.: C13H19FN3O9P
Mol.Wt.: 411.3
Status: Custom Synthesis
Sofosbuvir Impurity 75
CAT No: VS-S031098
CAS No: 1334513-02-8
Mol.F.: C18H17F5NO5P
Mol.Wt.: 453.3
Status: Custom Synthesis
Sofosbuvir Impurity 76
CAT No: VS-S031099
CAS No: N/A
Mol.F.: C24H21ClFN3O5
Mol.Wt.: 485.9
Status: Custom Synthesis
Sofosbuvir Impurity 77
CAT No: VS-S031100
CAS No: 81997-76-4
Mol.F.: C11H18O4
Mol.Wt.: 214.3
Status: Custom Synthesis
