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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Rifaximin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Rifaximin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Rifaximin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Rifaximin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
11-Desmethyl Rifaximin D4 Stable Isotopes CS-T-52267 1316302-12-1 Enquire
25-Desacetyl Rifaximin-d6 Stable Isotopes CS-P-02778 Not Available Enquire
Rifaximin-d6 Stable Isotopes CS-O-06926 80621-81-4(Unlabeled) In Stock
Rifaximin-d6 (Major) Stable Isotopes CS-T-85315 1262992-43-7 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Rifaximin API Standards CS-O-02226 80621-81-4 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Dehydro Rifaximin Impurities CS-T-73193 80621-76-7 Enquire
Desacetyl Rifaximin Impurities CS-T-63098 80621-88-1 In Stock
Rifaximin degradation Impurity -1 Impurities CS-O-57230 Not Available Enquire
Rifaximin EP Impurity B Impurities CS-T-41832 13929-35-6 Enquire
Rifaximin EP Impurity D Impurities CS-O-14278 Not Available In Stock
Rifaximin EP Impurity E Impurities CS-O-02278 13553-79-2 In Stock
Rifaximin EP Impurity H Impurities CS-EO-00887 1210022-90-4 In Stock
Rifaximin Impurity 1 Impurities CS-T-64040 1351775-04-6 Enquire
Rifaximin Impurity 5 Impurities CS-O-59614 Not Available Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Rifaximin (Y0001074) EP Standards CS-EG-03046 80621-81-4 Enquire
Rifaximin System suitability(Y0001075) EP Standards CS-EG-00716 80621-81-4 Enquire