NAD+ 15mg — Vial Spec, Reconstitution Math & COA

NAD+ 15mg Specification Overview and Available Catalog Formats

A 15mg vial of Nicotinamide Adenine Dinucleotide (NAD+) supplies a highly targeted mass of the essential pyridine nucleotide coenzyme for precise bench-scale research. In academic and industrial laboratories, a 15mg fill mass is frequently selected for low-volume enzymatic assays, high-throughput microplate screens, or pilot cell culture experiments where working solutions must be prepared fresh without requiring multiple freeze-thaw cycles of a larger stock supply.

Please note: while PX1 Research maintains a comprehensive inventory of research-grade compounds across various mass options, specific fill sizes may vary based on synthesis cycles and batch availability. Principal investigators can review our primary catalog listing for NAD+ to confirm current stock, or browse our full range of research peptides to identify alternative mass specifications suitable for prospective research protocols.

Biochemical Profile and Molecular Properties of NAD+

Nicotinamide Adenine Dinucleotide exists as a critical redox dinucleotide consisting of two phosphate groups joined by an anhydride bond, linking an adenine ring and a nicotinamide ring. In biological systems, NAD+ acts as an electron acceptor, transitioning to its reduced form, NADH, during catabolic pathways such as glycolysis, beta-oxidation, and the citric acid cycle.

Beyond its classic metabolic role as a redox coenzyme, NAD+ serves as an essential consumable substrate for non-redox enzymes. These include poly(ADP-ribose) polymerases (PARPs), which regulate genomic stability and DNA repair pathways, and sirtuins (SIRT1–SIRT7), a class of NAD+-dependent deacetylases that modulate epigenetic expression, mitochondrial biogenesis, and cellular longevity signaling in preclinical research models. In vitro data indicate that maintaining stable NAD+ micro-concentrations is critical when evaluating the enzymatic kinetics of these target pathways.

Reconstitution Math for a 15mg NAD+ Research Vial

Calculating precise target concentrations from a 15mg lyophilized mass requires accurate solvent volume metering. Depending on the desired concentration for assay working stocks, researchers commonly use sterile Bacteriostatic Water, Sterile Water for Injection (SWFI), or phosphate-buffered saline (PBS) adjusted to optimal pH.

Below are standard volumetric concentration outputs achieved when reconstituting a single 15mg vial of NAD+ with varying diluent volumes:

1. Reconstitution with 1.0 mL Diluent: Total Mass: 15 mg in 1.0 mL Final Concentration: 15.0 mg/mL (15.0 µg/µL) For a molecular weight of approximately 663.43 g/mol, a 15 mg/mL solution yields a molarity of ~22.61 mM.

2. Reconstitution with 2.0 mL Diluent: Total Mass: 15 mg in 2.0 mL Final Concentration: 7.5 mg/mL (7.5 µg/µL) Calculated Molarity: ~11.30 mM working stock solution.

3. Reconstitution with 3.0 mL Diluent: Total Mass: 15 mg in 3.0 mL Final Concentration: 5.0 mg/mL (5.0 µg/µL) Calculated Molarity: ~7.54 mM stock solution.

For complex dilution schemes involving multi-well microplate mapping or custom molarity targets, researchers should utilize our interactive reconstitution calculator to eliminate manual conversion error during experiment setup.

Aliquot Planning and Degradation Prevention Protocols

A primary advantage of utilizing a 15mg vial size is the minimization of excess material handling. Once reconstituted in aqueous solution, the dinucleotide backbone of NAD+ becomes susceptible to hydrolysis over time, particularly at elevated temperatures or non-neutral pH levels. Freezing and thawing whole reconstituted vials repeatedly accelerates chemical cleavage into nicotinamide and ADP-ribose, altering the active concentration of the research sample.

To maximize compound integrity, immediately following reconstitution, the solution should be divided into single-use micro-aliquots using polypropylene microcentrifuge tubes. Aliquots should be sized to match the volume requirements of a single experimental run (e.g., 50 µL to 100 µL per tube). Once aliquoted, snap-freeze the tubes in liquid nitrogen or a dry ice/ethanol bath before placing them in ultra-low storage.

Solvent Compatibility and Experimental Stability

The solubility of lyophilized NAD+ is optimal in aqueous media. However, selection of the appropriate solvent depends directly on the downstream analytical platform. For enzymatic assays where ionic strength must be strictly controlled, reconstitution in pure laboratory-grade sterile water is recommended prior to final dilution into assay buffers.

When preparing stock solutions in cell culture media or buffered salt solutions (such as PBS or HEPES), maintain a pH range between 6.0 and 7.5. Preclinical studies suggest that NAD+ undergoes accelerated decomposition in strongly alkaline environments (pH > 8.0) and rapid degradation under highly acidic conditions (pH < 4.0). Ensuring buffered stability prevents false negatives or inconsistent kinetic data during high-throughput spectrophotometric measurement at 340 nm.

Storage Parameters: Lyophilized Powder vs. Reconstituted Solution

Unopened, lyophilized NAD+ 15mg vials exhibit excellent long-term stability when stored under controlled environment conditions. Sealed vials must be maintained at -20°C for standard short-to-medium-term laboratory storage, or at -80°C for extended archiving. Vials should be protected from direct light exposure and desiccated to prevent atmospheric moisture absorption.

Once reconstituted, liquid stock solutions should be kept at 2°C to 8°C only if they are to be consumed within 24 to 48 hours. For longer storage, reconstituted aliquots must be maintained at -80°C. Researchers should avoid standard auto-defrost (frost-free) freezers, as temperature cycling severely compromises dinucleotide stability.

Analytical Verification: Lot-Matched COA and Purity Assurance

Every batch of NAD+ supplied by PX1 Research undergoes rigorous third-party analytical verification prior to catalog distribution. Quality assurance protocols mandate that each production lot is tested via High-Performance Liquid Chromatography (HPLC) coupled with Mass Spectrometry (MS) to confirm identity, exact molecular mass, and chemical purity.

To inspect batch-specific documentation—including purity percentages, chromatograms, and mass spectra—investigators can access our dedicated COA lookup database. PX1 Research guarantees that all listed research compounds achieve a minimum purity threshold of 98%, ensuring that contaminants or degraded co-factors do not interfere with downstream preclinical findings.

Comparative Analysis: NAD+ vs. Related Metabolic Research Compounds

In metabolic and longevity research clusters, investigators frequently compare the kinetics of direct coenzymes against intermediate precursors or ancillary cellular support compounds. While NAD+ represents the active dinucleotide substrate, precursor molecules such as NMN (Nicotinamide Mononucleotide) and Nicotinamide Riboside (NR) require enzymatic conversion via the salvage pathway to raise intracellular NAD+ pools in preclinical models.

In contrast, non-pyridine research compounds like Glutathione operate via distinct pathways, functioning primarily as master intracellular antioxidants to neutralize reactive oxygen species (ROS) rather than serving as direct electron carriers in ATP synthesis. When evaluating cellular energy dynamics alongside redox stress, researchers often design parallel arms utilizing both direct dinucleotides and metabolic regulators such as CJC-1295 to assess overall mitochondrial response. For a broader exploration of metabolic research targets, visit our central research library.

Scaling Laboratory Protocols: Choosing 15mg vs. Bulk Formats

Selecting the correct vial specification depends on operational scope and protocol frequency. A 15mg vial format is optimal for target validation, microplate assay standardisation, or pilot studies where minimizing reagent waste is paramount. Working with smaller initial masses limits potential financial loss from reagent degradation during long assay setup times.

Conversely, multi-center studies, automated screening platforms, or ongoing longitudinal animal models may require larger mass quantities to maintain batch uniformity across extended timelines. For high-volume research institutions requiring bulk allocations or recurring lot reservations, explore custom sourcing options via our wholesale portal.