LN732 Flubromazolam: A High-Potency Triazolobenzodiazepine for Advanced Neuropharmacological Research

Product Name: Flubromazolam (LN732)
Chemical Name: 8-Bromo-6-(2-fluorophenyl)-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine
Common Designation: LN732
CAS Number: 612526-40-6
Molecular Formula: C₁₇H₁₂BrFN₄
Molar Mass: 371.21 g/mol
Appearance: Fine, white to off-white crystalline powder

Introduction: A Benchmark in Potency and Duration

Flubromazolam, designated in research catalogs as LN732, stands as one of the most potent and pharmacologically distinct compounds within the triazolobenzodiazepine class. It is structurally characterized by the critical fusion of a triazole ring to a benzodiazepine core, augmented by a fluorine atom at the ortho position of the 2-phenyl ring and a bromine atom at the 8-position. These deliberate molecular modifications synergize to create a research chemical of exceptional binding affinity, potency, and metabolic stability, making it a paramount subject for serious investigative research into the extremes of GABAergic modulation.

This product is synthesized and provided exclusively as a high-purity chemical for non-human, in vitro research applications conducted by qualified scientific professionals.

Key Characteristics and Research Properties

• Exceptional Potency: Flubromazolam is renowned in research literature for its extreme potency, significantly exceeding that of many classical benzodiazepines like alprazolam and diazepam. Its high affinity for the benzodiazepine binding site on GABA-A receptors makes it a powerful tool for studying high-efficacy allosteric modulation. This ultra-potency demands the use of sophisticated, calibrated analytical equipment and strict handling protocols.

• Triazolo Ring System: The presence of the triazole ring contributes to both its high binding affinity and its resistance to metabolic degradation. This ring system is a key focus for researchers studying the impact of heterocyclic additions on drug-receptor interaction kinetics and metabolic half-life.

• Halogen Substitutions: The strategic ortho-fluorine and para-bromine substitutions on the molecular structure are critical to its pharmacological profile. The fluorine atom enhances lipid solubility and receptor binding affinity, while the bromine atom influences the compound’s electronic properties and overall receptor interaction. This makes it an excellent candidate for Structure-Activity Relationship (SAR) studies.

• Prolonged Duration of Action: Preliminary in vitro metabolic studies suggest a very long half-life, indicating slow dissociation from receptor sites and resistance to hepatic breakdown. This property is crucial for researchers designing long-term receptor occupancy studies or investigating cumulative effects.

Intended Applications and Research Use

Flubromazolam (LN732) is a chemical for controlled, non-human scientific investigation and is categorically not for human or veterinary use.

Its primary applications include, but are not limited to:

• Receptor Binding Assays: Quantitative in vitro studies to determine binding affinity (Ki), inhibitory concentration (IC50), and efficacy (EC50) at various GABA-A receptor subunit compositions (e.g., α1, α2, α3, α5).

• Metabolic Pathway Analysis: Investigation of cytochrome P450 metabolism using human liver microsome models to identify characteristic phase I and II metabolites, which is vital for forensic toxicology and understanding metabolic stability.

• Analytical Reference Standard: Use as a primary standard for developing and validating highly sensitive analytical methods for the detection and quantification of novel psychoactive substances (NPS) in forensic samples using techniques such as GC-MS, LC-MS/MS, and HPLC-DAD.

• Structure-Activity Relationship (SAR) Research: Serves as a benchmark compound for comparing the pharmacological impact of halogenation and triazolo-ring fusion against other benzodiazepine analogs.

Handling, Storage, and Safety Information

• Purity: >99% (as rigorously verified by High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS)).

• Solubility: Soluble in common organic solvents such as dimethyl sulfoxide (DMSO), ethanol, and methanol. It has very limited solubility in water.

• Storage: Must be stored in its original sealed container under inert conditions. Storage should be in a cool, dry, and dark environment, ideally refrigerated between +2°C and +8°C, to protect it from light, moisture, and oxidation, ensuring long-term stability.

• Handling: EXTREME CAUTION – HIGH POTENCY COMPOUND. This material is active in the microgram range and poses a severe risk even through accidental exposure. It must only be handled by trained researchers in a controlled laboratory setting. Mandatory safety protocols include the use of personal protective equipment (PPE) such as nitrile gloves, a lab coat, safety glasses, and the use of a certified fume hood for any manipulation of the pure powder. Proper decontamination procedures must be in place.