Febuxostat 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-Hydroxybenzothioamide
CAT No: VS-F006030
CAS No: 7133-90-6
Mol.F.: C7H7NOS
Mol.Wt.: 153.2
Status: Custom Synthesis
3-Hydroxybenzothioamide
CAT No: VS-F006029
CAS No: 104317-54-6
Mol.F.: C7H7NOS
Mol.Wt.: 153.2
Status: Custom Synthesis
4-Hydroxybenzothioamide
CAT No: VS-F006060
CAS No: 25984-63-8
Mol.F.: C7H7NOS
Mol.Wt.: 153.2
Status: Custom Synthesis
Ethyl 2,2-dichloro-3-oxobutanoate
CAT No: VS-F006028
CAS No: 6134-66-3
Mol.F.: C6H8Cl2O3
Mol.Wt.: 199
Status: Custom Synthesis
Febuxostat 4-Hydroxy Acid Impurity
CAT No: VS-F006001
CAS No: 407582-48-3
Mol.F.: C12H8N2O3S
Mol.Wt.: 260.27
Status: In Stock
Febuxostat 4-Hydroxy Ethyl Ester
CAT No: VS-F006002
CAS No: 161798-02-3
Mol.F.: C14H12N2O3S
Mol.Wt.: 288.32
Status: Custom Synthesis
Febuxostat Acyl-Β-D-Glucuronide
CAT No: VS-F006003
CAS No: N/A
Mol.F.: C22H24N2O9S
Mol.Wt.: 492.5
Status: Custom Synthesis
Febuxostat Amide Impurity
CAT No: VS-F006004
CAS No: 1239233-86-3
Mol.F.: C16H18N2O4S
Mol.Wt.: 334.39
Status: In Stock
Febuxostat Bromo Impurity
CAT No: VS-F006005
CAS No: 144060-40-2
Mol.F.: C15H16BrNO3S
Mol.Wt.: 370.26
Status: Custom Synthesis
Febuxostat Butyl Ester Impurity
CAT No: VS-F006024
CAS No: 1619982-02-3
Mol.F.: C20H24N2O3S
Mol.Wt.: 372.5
Status: Custom Synthesis
Febuxostat Butyl Ether Analog
CAT No: VS-F006006
CAS No: 1657014-33-9
Mol.F.: C16H16N2O3S
Mol.Wt.: 316.37
Status: Custom Synthesis
Febuxostat DEE Impurity
CAT No: VS-F006058
CAS No: 1643131-93-4
Mol.F.: C20H25NO5S
Mol.Wt.: 391.5
Status: Custom Synthesis
Febuxostat Descarboxy Impurity
CAT No: VS-F006007
CAS No: 1335202-60-2
Mol.F.: C15H16N2OS
Mol.Wt.: 272.37
Status: Custom Synthesis
Febuxostat Descyano Ethyl Ester
CAT No: VS-F006008
CAS No: 144060-97-9
Mol.F.: C17H21NO3S
Mol.Wt.: 319.42
Status: In Stock
Febuxostat Descyano Hydroxy Ethyl Ester
CAT No: VS-F006009
CAS No: 161797-99-5
Mol.F.: C13H13NO3S
Mol.Wt.: 263.31
Status: Custom Synthesis
Febuxostat Descyano Hydroxy Impurity
CAT No: VS-F006010
CAS No: 886501-78-6
Mol.F.: C11H9NO3S
Mol.Wt.: 235.26
Status: In Stock
Febuxostat Descyano Impurity
CAT No: VS-F006011
CAS No: 1206550-99-3
Mol.F.: C15H17NO3S
Mol.Wt.: 291.37
Status: In Stock
Febuxostat Dicarboxylic Acid Impurity
CAT No: VS-F006012
CAS No: 1239233-87-4
Mol.F.: C16H17NO5S
Mol.Wt.: 335.37
Status: In Stock
Febuxostat Diformyl Impurity
CAT No: VS-F006026
CAS No: 2073891-59-3
Mol.F.: C15H13NO5S
Mol.Wt.: 319.3
Status: Custom Synthesis
Febuxostat Dimethylthiazole Ethyl Ester Impurity
CAT No: VS-F006013
CAS No: 7210-77-7
Mol.F.: C8H11NO2S
Mol.Wt.: 185.24
Status: Custom Synthesis
Febuxostat Dithiazole Acid Impurity
CAT No: VS-F006014
CAS No: 1330632-48-8
Mol.F.: C20H20N2O5S2
Mol.Wt.: 432.51
Status: Custom Synthesis
Febuxostat Ethyl Ester
CAT No: VS-F006015
CAS No: 160844-75-7
Mol.F.: C18H20N2O3S
Mol.Wt.: 344.43
Status: In Stock
Febuxostat Ethyl Ester Amide Impurity
CAT No: VS-F006032
CAS No: 1346238-15-0
Mol.F.: C18H22N2O4S
Mol.Wt.: 362.4
Status: Custom Synthesis
Febuxostat Impurity (4-Isobutoxy benzene-1,3-bis(carbothio amide))
CAT No: VS-F006022
CAS No: 1330632-46-6
Mol.F.: C12H16N2OS2
Mol.Wt.: 268.4
Status: Custom Synthesis
Febuxostat Impurity (Dimethyl 2,2'-(4-isobutoxy-1,3-phenylene)bis(4-methylthiazole-5-carboxylate))
CAT No: VS-F006023
CAS No: 1330632-47-7
Mol.F.: C22H24N2O5S2
Mol.Wt.: 460.57
Status: Custom Synthesis
Febuxostat Impurity 1
CAT No: VS-F006034
CAS No: 161798-01-2
Mol.F.: C14H13NO4S
Mol.Wt.: 291.33
Status: Custom Synthesis
Febuxostat Impurity 10
CAT No: VS-F006039
CAS No: N/A
Mol.F.: C16H16N2O4S
Mol.Wt.: 332.38
Status: Custom Synthesis
Febuxostat Impurity 11
CAT No: VS-F006040
CAS No: 31643-49-9
Mol.F.: C8H3N3O2
Mol.Wt.: 173.13
Status: Custom Synthesis
Febuxostat Impurity 12
CAT No: VS-F006041
CAS No: N/A
Mol.F.: C9H2N4O2
Mol.Wt.: 198.14
Status: Custom Synthesis
Febuxostat Impurity 13
CAT No: VS-F006042
CAS No: N/A
Mol.F.: C32H36N4O6S2
Mol.Wt.: 636.79
Status: Custom Synthesis
Febuxostat Impurity 15
CAT No: VS-F006043
CAS No: N/A
Mol.F.: C15H14N2O3S
Mol.Wt.: 302.35
Status: Custom Synthesis
Febuxostat Impurity 16
CAT No: VS-F006044
CAS No: N/A
Mol.F.: C15H14N2O3S
Mol.Wt.: 302.35
Status: Custom Synthesis
Febuxostat Impurity 17
CAT No: VS-F006045
CAS No: N/A
Mol.F.: C14H12N2O3S
Mol.Wt.: 288.33
Status: Custom Synthesis
Febuxostat Impurity 18
CAT No: VS-F006046
CAS No: N/A
Mol.F.: C15H15NO4
Mol.Wt.: 273.29
Status: Custom Synthesis
Febuxostat Impurity 19
CAT No: VS-F006047
CAS No: 2375033-35-3
Mol.F.: C18H20N2O3S
Mol.Wt.: 344.4
Status: Custom Synthesis
Febuxostat Impurity 2
CAT No: VS-F006035
CAS No: 161798-03-4
Mol.F.: C18H21NO4S
Mol.Wt.: 347.44
Status: In Stock
Febuxostat Impurity 20
CAT No: VS-F006048
CAS No: 163597-57-7
Mol.F.: C12H14N2OS
Mol.Wt.: 234.32
Status: Custom Synthesis
Febuxostat Impurity 21
CAT No: VS-F006049
CAS No: 1346238-12-7
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.36
Status: Custom Synthesis
Febuxostat Impurity 22
CAT No: VS-F006050
CAS No: N/A
Mol.F.: C16H16N2O3S
Mol.Wt.: 316.38
Status: Custom Synthesis
Febuxostat Impurity 23
CAT No: VS-F006051
CAS No: N/A
Mol.F.: C22H24N2O5S2
Mol.Wt.: 460.56
Status: Custom Synthesis
Febuxostat Impurity 24
CAT No: VS-F006052
CAS No: N/A
Mol.F.: C17H15N3O3S
Mol.Wt.: 341.39
Status: Custom Synthesis
Febuxostat Impurity 25
CAT No: VS-F006053
CAS No: 1643131-89-8
Mol.F.: C17H20N2O4S
Mol.Wt.: 348.42
Status: Custom Synthesis
Febuxostat Impurity 26
CAT No: VS-F006054
CAS No: 2230270-05-8
Mol.F.: C18H20N2O3S
Mol.Wt.: 344.4
Status: Custom Synthesis
Febuxostat Impurity 27
CAT No: VS-F006055
CAS No: N/A
Mol.F.: C32H31N3O6S2
Mol.Wt.: 617.7
Status: Custom Synthesis
Febuxostat Impurity 28
CAT No: VS-F006056
CAS No: 1350352-70-3
Mol.F.: C16H18N2O4S
Mol.Wt.: 334.4
Status: Custom Synthesis
Febuxostat Impurity 29
CAT No: VS-F006057
CAS No: N/A
Mol.F.: C12H7ClN2O2S
Mol.Wt.: 278.7
Status: Custom Synthesis
Febuxostat Impurity 30
CAT No: VS-F006059
CAS No: 1312815-35-2
Mol.F.: C12H9NO4S
Mol.Wt.: 263.3
Status: In Stock
Febuxostat Impurity 6
CAT No: VS-F006036
CAS No: 1271738-74-9
Mol.F.: C18H22N2O4S
Mol.Wt.: 362.45
Status: Custom Synthesis
Febuxostat Impurity 7
CAT No: VS-F006037
CAS No: N/A
Mol.F.: C16H18N2O4S
Mol.Wt.: 334.4
Status: Custom Synthesis
Febuxostat Impurity 8
CAT No: VS-F006038
CAS No: 144060-62-8
Mol.F.: C16H17NO4S
Mol.Wt.: 319.38
Status: In Stock
Febuxostat Impurity V
CAT No: VS-F006025
CAS No: N/A
Mol.F.: C18H21NO5S
Mol.Wt.: 363.4
Status: Custom Synthesis
Febuxostat Isobutyl Ester Impurity
CAT No: VS-F006033
CAS No: N/A
Mol.F.: C21H28N2O4S
Mol.Wt.: 404.5
Status: Custom Synthesis
Febuxostat Isopropyl Ester
CAT No: VS-F006016
CAS No: 1346238-10-5
Mol.F.: C19H22N2O3S
Mol.Wt.: 358.45
Status: Custom Synthesis
Febuxostat Isopropyl Ether Analog
CAT No: VS-F006017
CAS No: 144060-52-6
Mol.F.: C15H14N2O3S
Mol.Wt.: 302.35
Status: Custom Synthesis
Febuxostat Methyl Ester
CAT No: VS-F006018
CAS No: 923942-34-1
Mol.F.: C17H18N2O3S
Mol.Wt.: 330.4
Status: Custom Synthesis
Febuxostat n-Propyl Ether Acid Impurity
CAT No: VS-F006019
CAS No: 1530308-87-2
Mol.F.: C15H14N2O3S
Mol.Wt.: 302.35
Status: Custom Synthesis
Febuxostat sec-Butyl Ether Acid Impurity
CAT No: VS-F006020
CAS No: 1335202-59-9
Mol.F.: C16H16N2O3S
Mol.Wt.: 316.37
Status: Custom Synthesis
Febuxostat t-Butyl Ether Acid Impurity
CAT No: VS-F006021
CAS No: 2418591-43-0
Mol.F.: C16H16N2O3S
Mol.Wt.: 316.37
Status: Custom Synthesis
Isopropyloxycarbonyl Febuxostat
CAT No: VS-F006031
CAS No: N/A
Mol.F.: C19H23NO5S
Mol.Wt.: 377.5
Status: Custom Synthesis
Oxime Febuxostat Acid Impurity
CAT No: VS-F006027
CAS No: N/A
Mol.F.: C16H18N2O4S
Mol.Wt.: 334.4
Status: Custom Synthesis
