Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Zafirlukast 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 Zafirlukast-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.
CAT No: VS-Z001000
CAS No: 107753-78-6
Mol.F.: C31H33N3O6S
Mol.Wt.: 575.7
Status: Custom Synthesis
CAT No: VS-Z001001
CAS No: 1159195-67-1
Mol.F.: C27H27N3O6S
Mol.Wt.: 521.6
Status: Custom Synthesis
CAT No: VS-Z001002
CAS No: 1159195-69-3
Mol.F.: C31H33N3O6S
Mol.Wt.: 575.7
Status: Custom Synthesis
CAT No: VS-Z001003
CAS No: 1159195-70-6
Mol.F.: C31H33N3O6S
Mol.Wt.: 575.7
Status: Custom Synthesis
CAT No: VS-Z001004
CAS No: N/A
Mol.F.: C31H32ClN3O6S
Mol.Wt.: 610.1
Status: Custom Synthesis
CAT No: VS-Z001005
CAS No: N/A
Mol.F.: C62H64N6O12S2
Mol.Wt.: 1149.3
Status: Custom Synthesis
CAT No: VS-Z001006
CAS No: 1160235-28-8
Mol.F.: C49H49N5O8S
Mol.Wt.: 868
Status: Custom Synthesis
CAT No: VS-Z001007
CAS No: 1391990-94-5
Mol.F.: C37H48N4O5
Mol.Wt.: 628.8
Status: Custom Synthesis
CAT No: VS-Z001008
CAS No: 1160235-24-4
Mol.F.: C46H49N5O8S
Mol.Wt.: 832
Status: In Stock
CAT No: VS-Z001009
CAS No: 1160235-26-6
Mol.F.: C47H48N4O10S2
Mol.Wt.: 893
Status: In Stock
CAT No: VS-Z001010
CAS No: 107754-14-3
Mol.F.: C19H20N2O3
Mol.Wt.: 324.4
Status: In Stock
CAT No: VS-Z001011
CAS No: 107754-19-8
Mol.F.: C25H28N2O5
Mol.Wt.: 436.5
Status: In Stock
CAT No: VS-Z001012
CAS No: 107754-20-1
Mol.F.: C24H26N2O5
Mol.Wt.: 422.5
Status: In Stock
CAT No: VS-Z001013
CAS No: 116-37-0
Mol.F.: C21H28O4
Mol.Wt.: 344.5
Status: In Stock
CAT No: VS-Z001014
CAS No: 1795185-03-3
Mol.F.: C11H12N2O2
Mol.Wt.: 204.23
Status: Custom Synthesis
CAT No: VS-Z001015
CAS No: N/A
Mol.F.: C28H28N4O3
Mol.Wt.: 468.56
Status: Custom Synthesis
CAT No: VS-Z001016
CAS No: N/A
Mol.F.: C40H44N4O7
Mol.Wt.: 692.81
Status: Custom Synthesis
CAT No: VS-Z001017
CAS No: N/A
Mol.F.: C39H42N4O7
Mol.Wt.: 678.79
Status: Custom Synthesis
CAT No: VS-Z001018
CAS No: N/A
Mol.F.: C33H34N2O8
Mol.Wt.: 586.64
Status: Custom Synthesis
CAT No: VS-Z001019
CAS No: N/A
Mol.F.: C35H38N2O8
Mol.Wt.: 614.7
Status: Custom Synthesis