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

Azure Related Compounds

API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure A Isomer API CS-EO-02328 34185-21-2 Enquire
Azure II API CS-CZ-00024 37247-10-2 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure B Impurity CS-ED-00595 531-55-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure A Intermediate CS-AC-12216 531-53-3 In Stock
Azure -C Intermediate CS-O-34552 531-57-7 In Stock


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Azure B Nitrosamine CS-O-59979 ---- Enquire
N-Nitroso Azure C Nitrosamine CS-O-59980 ---- Enquire
N-Nitroso Azure Impurity B Nitrosamine CS-O-57694 ---- Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure B Secondary Standards CS-SS-25313-100MG 531-55-5 Enquire