Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Rifaximin 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 Rifaximin-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-R035000
CAS No: 80621-81-4
Mol.F.: C43H51N3O11
Mol.Wt.: 785.9
Status: Custom Synthesis
CAT No: VS-R035001
CAS No: 695-34-1
Mol.F.: C6H8N2
Mol.Wt.: 108.1
Status: Custom Synthesis
CAT No: VS-R035002
CAS No: 13929-35-6
Mol.F.: C39H49NO14
Mol.Wt.: 755.8
Status: Custom Synthesis
CAT No: VS-R035003
CAS No: 14897-39-3
Mol.F.: C37H47NO12 : Na
Mol.Wt.: 697.8 : 23.0
Status: Custom Synthesis
CAT No: VS-R035004
CAS No: N/A
Mol.F.: C43H49N3O12
Mol.Wt.: 799.9
Status: Custom Synthesis
CAT No: VS-R035005
CAS No: 13553-79-2
Mol.F.: C37H45NO12
Mol.Wt.: 695.8
Status: Custom Synthesis
CAT No: VS-R035006
CAS No: 14487-05-9
Mol.F.: C39H47NO14
Mol.Wt.: 753.8
Status: Custom Synthesis
CAT No: VS-R035007
CAS No: 80621-76-7
Mol.F.: C43H49N3O11
Mol.Wt.: 783.9
Status: Custom Synthesis
CAT No: VS-R035008
CAS No: 1210022-90-4
Mol.F.: C43H51N3O12
Mol.Wt.: 801.9
Status: Custom Synthesis
CAT No: VS-R035009
CAS No: 16783-99-6
Mol.F.: C41H56N4O11
Mol.Wt.: 780.9
Status: Custom Synthesis
CAT No: VS-R035010
CAS No: N/A
Mol.F.: C44H60N4O11
Mol.Wt.: 821
Status: Custom Synthesis
CAT No: VS-R035011
CAS No: 80621-88-1
Mol.F.: C41H49N3O10
Mol.Wt.: 743.9
Status: Custom Synthesis
CAT No: VS-R035012
CAS No: 1351775-04-6
Mol.F.: C43H49N3O11
Mol.Wt.: 783.9
Status: Custom Synthesis
CAT No: VS-R035013
CAS No: 1351775-03-5
Mol.F.: C43H49N3O11
Mol.Wt.: 783.9
Status: Custom Synthesis