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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Rifamycin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Rifamycin 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 Rifamycin-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.

Rifamycin Related Compounds

API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Rifamycin API Standards CS-O-02237 6998-60-3 In Stock
Rifamycin Y API Standards CS-O-40949 15271-73-5 Enquire


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Fomyl Rifamycin Metabolites CS-O-11173 13292-22-3 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
25-Desacetyl Rifamycin-O Impurities CS-O-49041 Not Available In Stock
3-(Isonicotinoylhydrazonomethyl) Rifamycin Impurities CS-T-56828 13292-53-0 In Stock
3-Amino-4-deoxy-4-imino Rifamycin S Impurities CS-T-47727 62041-01-4 Enquire
3-Amino-4-imino-Rifamycin S Impurities CS-O-32173 62041-01-4 Enquire
3-Aminorifamycin S Impurities CS-T-66600 51756-80-0 Enquire
3-Nitrorifamycin S Impurities CS-O-54970 72788-67-1 Enquire
Desacetyl Rifamycin S Impurities CS-P-08865 17555-51-0 Enquire
Desacetyl Rifamycin SV Impurities CS-P-08864 17750-90-2 Enquire
Rifamycin O Impurities CS-T-61153 14487-05-9 In Stock
Rifamycin R Impurities CS-ED-00270 59264-04-9 Enquire
Rifamycin sodium salt Impurities CS-T-61154 14897-39-3 In Stock
Rifaximin EP Impurity B Impurities CS-T-41832 13929-35-6 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"3-Azido-1,4-dideoxy-1,4-dihydro-1,4-dioxorifamycin" Intermediates CS-T-48517 59886-91-8 Enquire
3-Bromorifamycin S Intermediates CS-T-49901 57375-25-4 Enquire
3-Formyl-25-desacetyl Rifamycin Intermediates CS-T-55031 16783-97-4 Enquire