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

Pyridines Related Compounds

Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,3-Cyclopentenopyridine N-oxide Metabolite CS-AC-11284 90685-58-8 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Pyridinesulfonic acid Impurity CS-M-57748 636-73-7 Enquire
2-Pyridinesulfonamide Impurity CS-M-51715 63636-89-5 Enquire
3-Hydroxy-2-imino-1(2H)-pyridinesulfonic Acid Monohydrate Impurity CS-T-79400 363619-90-3 Enquire
4-Pyridinesulfonamide Impurity CS-M-51714 65938-88-7 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Hydroxy-3-pyridinesulfonic Acid Intermediate CS-T-28572 51498-37-4 In Stock
N-Methyl-3-pyridinesulfonamide Intermediate CS-ED-41982 4847-34-1 Enquire
N-Methyl-4-pyridinesulfonamide Intermediate CS-ED-41983 1509701-26-1 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Pyridinesulfonyl Chloride Building Blocks CS-T-96108 66715-65-9 Enquire