Parecoxib 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.
Parecoxib Impurity 1
CAT No: VS-P011007
CAS No: 1708094-99-8
Mol.F.: C22H23N3O7S2
Mol.Wt.: 505.6
Status: Custom Synthesis
Parecoxib Impurity 10
CAT No: VS-P011016
CAS No: 181695-72-7
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.4
Status: In Stock
Parecoxib Impurity 11
CAT No: VS-P011017
CAS No: 181696-12-8
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.4
Status: Custom Synthesis
Parecoxib Impurity 12
CAT No: VS-P011018
CAS No: 198470-84-7
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: In Stock
Parecoxib Impurity 14
CAT No: VS-P011019
CAS No: N/A
Mol.F.: C16H13NO7S2
Mol.Wt.: 395.4
Status: Custom Synthesis
Parecoxib Impurity 15
CAT No: VS-P011020
CAS No: 26306-06-9
Mol.F.: C14H13NO
Mol.Wt.: 211.3
Status: Custom Synthesis
Parecoxib Impurity 16
CAT No: VS-P011021
CAS No: 1884279-18-8
Mol.F.: C18H17NO4S
Mol.Wt.: 343.4
Status: Custom Synthesis
Parecoxib Impurity 17
CAT No: VS-P011022
CAS No: N/A
Mol.F.: C16H15NO2
Mol.Wt.: 253.3
Status: Custom Synthesis
Parecoxib Impurity 18
CAT No: VS-P011023
CAS No: 2338845-31-9
Mol.F.: C32H24N2O4S
Mol.Wt.: 532.6
Status: Custom Synthesis
Parecoxib Impurity 19
CAT No: VS-P011024
CAS No: 386273-25-2
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.4
Status: Custom Synthesis
Parecoxib Impurity 2
CAT No: VS-P011008
CAS No: 451-40-1
Mol.F.: C14H12O
Mol.Wt.: 196.3
Status: Custom Synthesis
Parecoxib Impurity 20
CAT No: VS-P011025
CAS No: 37928-17-9
Mol.F.: C16H13NO
Mol.Wt.: 235.3
Status: Custom Synthesis
Parecoxib Impurity 21
CAT No: VS-P011026
CAS No: 1709956-89-7
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: Custom Synthesis
Parecoxib Impurity 22
CAT No: VS-P011027
CAS No: 181696-73-1
Mol.F.: C16H15NO2
Mol.Wt.: 253.3
Status: Custom Synthesis
Parecoxib Impurity 23
CAT No: VS-P011028
CAS No: 1373038-60-8
Mol.F.: C32H25N3O6S2
Mol.Wt.: 611.7
Status: Custom Synthesis
Parecoxib Impurity 24
CAT No: VS-P011029
CAS No: 198471-07-7
Mol.F.: C18H15N2O4S : Na
Mol.Wt.: 355.4 : 23.0
Status: Custom Synthesis
Parecoxib Impurity 25
CAT No: VS-P011030
CAS No: 2235371-89-6
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: Custom Synthesis
Parecoxib Impurity 26
CAT No: VS-P011031
CAS No: N/A
Mol.F.: C19H17N2O4S : Na
Mol.Wt.: 369.4 : 23.0
Status: Custom Synthesis
Parecoxib Impurity 27
CAT No: VS-P011032
CAS No: N/A
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.4
Status: Custom Synthesis
Parecoxib Impurity 28
CAT No: VS-P011033
CAS No: N/A
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: Custom Synthesis
Parecoxib Impurity 3
CAT No: VS-P011009
CAS No: N/A
Mol.F.: C16H14N2O3S
Mol.Wt.: 314.4
Status: Custom Synthesis
Parecoxib Impurity 4
CAT No: VS-P011010
CAS No: 1373038-59-5
Mol.F.: C16H15N3O5S2
Mol.Wt.: 393.4
Status: Custom Synthesis
Parecoxib Impurity 5
CAT No: VS-P011011
CAS No: 198471-06-6
Mol.F.: C18H16N2O4S
Mol.Wt.: 356.4
Status: Custom Synthesis
Parecoxib Impurity 6
CAT No: VS-P011034
CAS No: 198470-91-6
Mol.F.: C20H20N2O4S
Mol.Wt.: 384.5
Status: Custom Synthesis
Parecoxib Impurity 6 Sodium Salt
CAT No: VS-P011012
CAS No: 198470-92-7
Mol.F.: C20H20N2O4S : Na
Mol.Wt.: 384.5 : 23.0
Status: Custom Synthesis
Parecoxib Impurity 7
CAT No: VS-P011013
CAS No: 501093-49-8
Mol.F.: C16H14N2O4S
Mol.Wt.: 330.4
Status: Custom Synthesis
Parecoxib Impurity 8
CAT No: VS-P011014
CAS No: 181696-35-5
Mol.F.: C16H13NO4S
Mol.Wt.: 315.4
Status: Custom Synthesis
Parecoxib Impurity 9
CAT No: VS-P011015
CAS No: N/A
Mol.F.: C17H18N2O4S
Mol.Wt.: 346.4
Status: Custom Synthesis
Parecoxib Impurity B
CAT No: VS-P011003
CAS No: 198471-06-6
Mol.F.: C18H16N2O4S
Mol.Wt.: 356.4
Status: Custom Synthesis
Parecoxib Impurity C
CAT No: VS-P011004
CAS No: N/A
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: Custom Synthesis
Parecoxib Impurity D
CAT No: VS-P011005
CAS No: 477594-28-8
Mol.F.: C19H18N2O4S
Mol.Wt.: 370.4
Status: Custom Synthesis
Parecoxib Impurity E
CAT No: VS-P011006
CAS No: N/A
Mol.F.: C19H17N2O4S : Na
Mol.Wt.: 369.4 : 23.0
Status: Custom Synthesis
Parecoxib N-Oxide
CAT No: VS-P011002
CAS No: N/A
Mol.F.: C19H18N2O5S
Mol.Wt.: 386.4
Status: Custom Synthesis
Parecoxib Sodium Salt
CAT No: VS-P011001
CAS No: 198470-85-8
Mol.F.: C19H18N2O4S : Na
Mol.Wt.: 370.4 : 23.0
Status: Custom Synthesis
