Description

Finrozole is a high-purity, non-steroidal aromatase inhibitor compound with significant research and development applications. Its primary value lies in its potent and selective inhibition of the aromatase enzyme, a key target in endocrine-related studies. This makes it a critical intermediate and reference standard for pharmaceutical R&D, particularly in the fields of oncology and endocrinology. B2B clients in the global pharmaceutical, biotechnology, and advanced fine chemical synthesis sectors rely on a consistent supply of this material for their discovery and development pipelines.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of advanced therapeutic agents targeting hormone-dependent conditions.
• Research & Development: Used as a reference standard and active compound in preclinical studies for breast cancer and other aromatase-related research.
• Biochemical Research: Employed in enzymatic assays and studies to investigate aromatase inhibition mechanisms and structure-activity relationships (SAR).
• Fine Chemical Synthesis: Acts as a specialized intermediate for custom synthesis and the production of novel chemical entities in contract manufacturing.
• Academic Research: Utilized in university and institutional labs for pharmacological and biochemical investigations.

Basic Information

Product Name	Finrozole
CAS No.	204714-56-7
Molecular Formula	C20H21FN4O
Molecular Weight	352.41 g/mol
Synonyms	6-[(4-Cyanoanilino)methyl]-1-(4-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one; CGS 20267; Letrozole Impurity; Letrozole Related Compound A; Aromatase Inhibitor CGS 20267; UNII-7LKK855W8I
EINECS	Contact for details

Quality Control

Our Finrozole is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality assurance includes comprehensive analytical testing via HPLC, GC, and NMR to confirm identity, potency, and impurity profiles. We provide full traceability and Certificates of Analysis (COA) are available for every batch, detailing all critical specifications. Our production adheres to cGMP guidelines where applicable, supporting its use in regulated research environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0% Any single impurity ≤0.5%
Water Content (KF)	≤0.5%
Residue on Ignition	≤0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.