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

Letrozole Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole-d4 Stable Isotopes CS-O-06716 1133712-96-5 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole API Standards CS-O-01788 112809-51-5 In Stock


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole Metabolite Metabolites CS-O-07880 Not Available In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole Bromo Impurity Impurities CS-O-13690 143030-54-0 Enquire
Letrozole Diamide Impurities CS-O-35989 2170106-13-3 In Stock
Letrozole EP Impurity C Impurities CS-O-32022 112809-25-3 In Stock
Letrozole Monoacid Impurity Impurities CS-EO-01994 Not Available Enquire
Letrozole Related Compound A Impurities CS-O-11054 112809-52-6 In Stock


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole (Y0000685) EP Standards CS-EG-00846 112809-51-5 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Letrozole Monoamide Monoacid Intermediates CS-O-59457 Not Available Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4,4',4''-Methanetriyltribenzonitrile Fine Chemicals CS-T-58281 113402-31-6 In Stock