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

Zonisamide Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Zonisamide 15N D4 Stable Isotopes CS-O-46635 2308764-57-8 Enquire
Zonisamide-d4 Stable Isotopes CS-O-02921 1020720-04-0 In Stock


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Zonisamide API CS-O-11773 68291-97-4 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-(Benzo[d]isoxazol-3-yl)-N-methylmethanesulfonamide Impurity CS-O-47932 Not Available Enquire
Zonisamide N,N-Dimethylformimidamide Impurity CS-T-62700 1217201-89-2 In Stock
N-Acetyl Zonisamide Impurity CS-T-01238 68936-43-6 Enquire
Zonisamide Related Compound A Impurity CS-P-09224 342623-49-8 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,2-Benzisoxazole-3-methanesulfonic acid sodium salt Intermediate CS-O-30841 73101-64-1 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Zonisamide Glucuronide Glucuronide CS-O-48100 Not Available Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Methyl zonisamide Therapeutic CS-O-05940 68292-02-4 In Stock