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

Clemastine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Clemastine N-Oxide-d5 Stable Isotopes CS-T-97683 Not Available Enquire
Clemastine-d5 Fumarate Stable Isotopes CS-T-97684 Not Available Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Clemastine Fumarate API Standards CS-O-06237 14976-57-9 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Clemastine EP Impurity B Impurities CS-EO-02906 1352549-49-5 Enquire
Clemastine EP Impurity D Impurities CS-Q-01261 67004-64-2 Enquire
Clemastine Fumarate Impurity A (Mixture of Diastereomers) Impurities CS-P-00896 108825-05-4 In Stock
Clemastine Fumarate Impurity B HCl Impurities CS-P-00897 61771-18-4 (freebase) In Stock
Clemastine Fumarate Impurity C Impurities CS-P-00898 59767-24-7 In Stock
N-desmethyl Clemastine Impurities CS-O-57188 178698-79-8 Enquire