Section 01
What Is NAD+?
NAD+ (Nicotinamide Adenine Dinucleotide) is a dinucleotide coenzyme found in every living cell. Structurally, it consists of two nucleotides joined through phosphate groups — one containing adenine and one containing nicotinamide. It exists in two interconvertible forms: the oxidized form (NAD+) and the reduced form (NADH), enabling its function as an electron carrier in redox reactions central to cellular metabolism.
As a research compound, NAD+ is classified for use by licensed professionals and qualified researchers operating within appropriate regulatory frameworks. It is not approved by the FDA for therapeutic use in humans and is supplied strictly for research purposes.
- Full name: Nicotinamide Adenine Dinucleotide (oxidized form); also written NAD⁺
- Discovery: First described in 1906 by Arthur Harden and William John Young during studies of yeast fermentation; the full structure was later elucidated by Otto Warburg in the 1930s
- Classification: Coenzyme — a non-protein molecule required by enzyme activity; found endogenously in all living cells
- Molecular weight: 663.43 g/mol
- CAS number: 53-84-9
- Structure: Dinucleotide — adenosine monophosphate (AMP) and nicotinamide mononucleotide (NMN) joined at their phosphate groups
- Endogenous distribution: Present in the cytoplasm, mitochondria, and nucleus; intracellular concentrations decline measurably with age in published research models
Research use only. NAD+ is supplied by Sequence Labs strictly as a research compound for qualified researchers and licensed practitioners. It is not intended for human consumption, self-administration, or any therapeutic application.
Section 02
Research Background
NAD+ has one of the deepest and most expansive published research profiles of any compound in the research catalog. With thousands of peer-reviewed studies indexed on PubMed spanning decades of investigation across multiple biological disciplines, it is a foundational subject in modern cellular and molecular biology research.
Key research areas documented in the peer-reviewed literature include:
The depth of NAD+ literature is distinguished not just by volume but by breadth — published research spans metabolic biology, oncology models, neuroscience, aging biology, and chronobiology. This makes NAD+ one of the most multi-disciplinary research subjects available through the Sequence Labs catalog.
Search NAD+ studies on PubMedSection 03
NAD+ in Research Context
NAD+ has been employed across a wide variety of research disciplines. The following reflects applications as reported in published peer-reviewed literature — not as clinical claims or indications for human use.
- Sirtuin biology: Sirtuins are a family of NAD+-dependent deacylase enzymes (SIRT1–SIRT7) whose activity is directly dependent on intracellular NAD+ availability. Published research has extensively examined their roles in transcriptional regulation, mitochondrial biogenesis, and stress response pathways
- PARP substrate studies: PARP1 and PARP2 enzymes consume NAD+ as a substrate in DNA repair signaling. Published research examining PARP activity, NAD+ depletion kinetics, and DNA damage response represents a substantial body of oncology and aging biology literature
- Mitochondrial redox research: The NAD+/NADH ratio is a key parameter in published mitochondrial research — reflecting the oxidative state of the mitochondrial matrix and its relationship to electron transport chain function
- Aging model research: Published studies in model organisms (C. elegans, rodent models) have examined the relationship between NAD+ concentrations and age-associated biological changes — a major area of ongoing scientific investigation
- Circadian research: Published molecular biology research has documented oscillations in NAD+ levels that correspond to circadian clock gene activity, with SIRT1 and NAMPT among the enzymes studied in this context
Storage parameters (lyophilized form): NAD+ in lyophilized form is typically stored at −20°C, protected from light and moisture. NAD+ is notably hygroscopic — handling under dry conditions prior to reconstitution is important for maintaining research sample integrity. Researchers should follow institutional protocols and refer to batch-specific COA documentation.
- Physical form: Lyophilized (freeze-dried) powder — requires reconstitution prior to use in research protocols
- Storage (lyophilized): −20°C, dry and dark conditions; hygroscopic — avoid repeated exposure to ambient humidity
- Storage (reconstituted): 2–8°C; use within the timeframe specified in research protocol documentation
- Reconstitution solvent: Sterile water or bacteriostatic water, depending on research protocol requirements
Section 04
NAD+ vs. NMN vs. NR in Research
NAD+, NMN (Nicotinamide Mononucleotide), and NR (Nicotinamide Riboside) occupy different positions in the NAD+ biosynthesis pathway and carry distinct research profiles. Understanding their structural and research distinctions is important context for researchers working in this area.
| Parameter | NAD+ | NMN | NR |
|---|---|---|---|
| Molecule type | Coenzyme (dinucleotide) | Mononucleotide precursor | Nucleoside precursor |
| Pathway position | End-product coenzyme | Immediate precursor to NAD+ | Precursor → NMN → NAD+ |
| Molecular weight | 663.43 g/mol | 334.22 g/mol | 255.25 g/mol |
| CAS number | 53-84-9 | 1094-61-7 | 1341-23-7 |
| Research volume | Broadest — thousands of studies | Growing — hundreds of studies | Substantial — hundreds of studies |
| Sirtuin substrate | Direct substrate | Not a direct substrate | Not a direct substrate |
| PARP substrate | Direct substrate | Not a direct substrate | Not a direct substrate |
Published research has examined all three molecules as research tools, each with distinct applications. NAD+ is the active coenzyme itself — directly consumed by sirtuins, PARPs, and CD38 in published enzyme studies. NMN and NR research has focused on their roles as biosynthetic precursors, with published studies investigating their metabolic conversion and cellular distribution profiles.
Section 05
Sequence Labs NAD+ Supply
Sequence Labs supplies NAD+ as a research compound for licensed professionals and qualified researchers. All products are independently tested and carry batch-specific Certificates of Analysis. Three sizes are available to accommodate varying research scale requirements.
| Specification | Sequence Labs Standard |
|---|---|
| Available sizes | 100mg · 500mg · 1000mg |
| Physical form | Lyophilized powder |
| Purity testing | ✓ HPLC + mass spectrometry |
| Testing laboratory | Krause Analytical, Austin TX |
| COA availability | ✓ Batch-specific, publicly accessible |
| COA verification | ✓ Verifiable via Finnrick Pulse |
| Catalog review | ✓ Reviewed by licensed PA-C |
| DEA registration | ✓ DEA-registered practitioner oversight |
| Storage (lyophilized) | −20°C, dry and dark; hygroscopic compound |
| Eligible purchasers | Licensed practitioners, qualified researchers |
| Wholesale / B2B | ✓ Available — see wholesale page |
Section 06
Reconstitution Reference
The following is provided as a general reference for researchers working with lyophilized NAD+. Researchers should follow their own institutional protocols and consult applicable regulatory guidelines. This is not medical or clinical instruction. NAD+ is hygroscopic — particular attention to moisture control during handling is warranted.
- Verify compound identity and COA. Confirm the batch COA from Krause Analytical prior to use. Verify via Finnrick Pulse if needed. Confirm that cold chain storage has been maintained from receipt through use.
- Equilibrate to room temperature before opening. Allow the sealed vial to reach room temperature before opening to prevent condensation forming on the hygroscopic powder — moisture contact before reconstitution can compromise research sample integrity.
- Prepare sterile solvent. Sterile water or bacteriostatic water (0.9% benzyl alcohol preserved) is appropriate depending on research protocol requirements. Use sterile technique throughout.
- Introduce solvent slowly to vial. Direct the solvent gently down the inner wall of the vial. Do not introduce solvent directly onto the lyophilized powder. Allow dissolution without agitation — do not shake. NAD+ dissolves readily in aqueous solvents.
- Gently roll to mix. Roll the vial between your palms to ensure complete dissolution. Avoid vigorous agitation to prevent degradation of the research preparation.
- Label the research preparation. Record compound name, concentration (mg/mL), reconstitution date, solvent used, and researcher or protocol identifier on the vial.
- Store at 2–8°C. Refrigerate the reconstituted research preparation. Do not freeze reconstituted vials. Use within the timeframe specified in your institutional protocol documentation.
For a full reconstitution reference guide applicable to all Sequence Labs research compounds, visit sequencelabs.health/resources.html.
Section 07
Frequently Asked Questions
Common questions from licensed researchers and practitioners regarding NAD+ research documentation, supply, and purity standards.
Sequence Labs
NAD+ — available now for licensed researchers
100mg, 500mg, and 1000mg. Batch-specific COA via Krause Analytical. Verifiable via Finnrick Pulse. Reviewed by a licensed PA-C. One of the most extensively researched compounds in the catalog. For licensed professionals and qualified researchers only.