|
HS Code |
203731 |
| Name | Coenzyme I (NAD) |
| Synonyms | Nicotinamide adenine dinucleotide |
| Cas Number | 53-84-9 |
| Molecular Formula | C21H27N7O14P2 |
| Molecular Weight | 663.43 g/mol |
| Appearance | White to off-white powder |
| Solubility | Soluble in water |
| Storage Temperature | -20°C |
| Biological Role | Electron carrier in redox reactions |
| Purity | Typically ≥ 95% |
| Source | Biochemical or synthetic |
| Ph Stability | Stable from pH 5 to 8 |
| Melting Point | Decomposes before melting |
| Uv Absorbance Max | 260 nm |
| Usage | Biochemical research, enzymatic assays |
As an accredited Coenzyme I (Nad) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Coenzyme I (NAD), 25g, packaged in a sealed amber glass bottle with tamper-evident cap and labeled for laboratory use. |
| Shipping | Coenzyme I (NAD) is shipped in secure, airtight containers to prevent moisture and degradation. It is typically transported at controlled room temperature, but may require refrigeration or cold packs during transit, depending on supplier specifications. Proper labeling and documentation ensure compliance with chemical transport regulations and safe delivery to the recipient. |
| Storage | Coenzyme I (NAD) should be stored tightly sealed in a cool, dry place, protected from light and moisture. For long-term storage, it is recommended to keep NAD refrigerated at 2-8°C. Avoid repeated freeze-thaw cycles. If stored as a powder, NAD is stable at -20°C; for solutions, aliquot and freeze at -20°C to prevent degradation. |
| Purity 98%: Coenzyme I (Nad) with purity 98% is used in enzymatic bioassays, where increased assay sensitivity is achieved.Molecular Weight 663.43 g/mol: Coenzyme I (Nad) with molecular weight 663.43 g/mol is used in biochemical research, where precise molecular interactions are ensured.Stability Temperature 2-8°C: Coenzyme I (Nad) stable at 2-8°C is used in clinical diagnostics, where prolonged reagent shelf life is maintained.Aqueous Solubility 20 mg/mL: Coenzyme I (Nad) with aqueous solubility 20 mg/mL is used in cell culture studies, where homogeneous solution preparation is facilitated.Enzyme Grade: Coenzyme I (Nad) of enzyme grade is used in metabolic enzyme assays, where optimal reaction kinetics are supported.pH Stability 6.5-8.5: Coenzyme I (Nad) with pH stability 6.5-8.5 is used in industrial fermentation, where enzyme-catalyzed processes are stabilized.Endotoxin Level <0.1 EU/mg: Coenzyme I (Nad) with endotoxin level less than 0.1 EU/mg is used in pharmaceutical manufacturing, where biological safety requirements are met.UV Absorbance 260 nm: Coenzyme I (Nad) with UV absorbance at 260 nm is used in spectrophotometric analysis, where accurate NAD/NADH quantification is obtained.Particle Size <50 μm: Coenzyme I (Nad) with particle size less than 50 μm is used in formulation development, where uniform dispersion is achieved.Lyophilized Form: Coenzyme I (Nad) in lyophilized form is used in diagnostic kit production, where extended storage stability is provided. |
Competitive Coenzyme I (Nad) prices that fit your budget—flexible terms and customized quotes for every order.
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A lot of people see NAD—nicotinamide adenine dinucleotide—listed on a bottle or lab catalog and think about basic metabolic chemistry. At our production site, NAD means precision from start to finish. The process runs deeper than mixing up a few powders, passing a purity test, and slapping on a label. It’s a world of small but critical variables: controlling temperature at every reaction step, calibrating pH meters down to a fraction of a unit, tracking batch origins, and checking for any sign of contamination long before we reach the final drying stage. Experience tells us that inconsistency here costs everyone down the line.
Each lot of NAD carries the memory of its fermentation, extraction, and crystallization journey. If there’s excess moisture or an unchecked residual ion, the entire batch’s shelf life suffers. Enzyme-dependent labs and pharmaceutical stages end up blaming the manufacturer when delicate co-factors underperform. Avoiding this starts in the fermenter. Our microbial biosynthesis routes for NAD rely on robust strains validated across hundreds of cycles. We monitor the time-point sampling and constantly cross-reference current output with historical data from prior runs.
What we produce falls under our own model designation: NAD-100, available as a white to off-white crystalline powder. Every kilogram appears identical on the surface, but we know subtle differences tell the story behind our lot management. After the fermentation broth clears coarse filtration, we apply multiple chromatographic purifications, targeting purity levels above 98 percent. Replicating this specification run after run isn’t a promise—it’s a target requiring constant oversight.
The molecular weight, 663.43 g/mol, or the C21H27N7O14P2 formula rarely comes into play for most end users, but anyone quantifying enzyme rates in diagnostics, cell biology, or vaccine manufacture will appreciate not having to troubleshoot unexpected batch-to-batch variation. Spectral controls show an absorption maximum at 259 nm and an extinction coefficient of around 18,000–a number confirmed by our in-house UV tests, not just copied from a catalog PDF. But these claims only matter if labs and industrial blenders downstream see consistent solubility, stability, and activity.
We don’t rely on one-off analyses—every production stage gets its own sample points. Most returns in the chemical manufacturing world link to a handful of avoidable errors: poor documentation, a shaky scale, or borrowed solvents. We address these steadily. Every drum leaving our facility carries a certificate based on in-house and third-party HPLC and microbiological assays. Microbial contamination once kept us awake at night—we learned to maintain argument-proof cleanliness across reactors, glassware, and storage vessels by sharing experience between shifts. Production managers with ten or more years on the site won’t send a lot out if the particulate count strays from internal norms.
Storage plays a larger role than most people realize. Even the purest NAD loses punch under high humidity or light. The drum lining, nitrogen blanket, and cold-chain provisions reflect years of troubleshooting feedback from the field.
Distributors can shuffle tubs across the ocean, but producers see what can go wrong before packing occurs. Enzyme researchers pull from our NAD lots for ATPase or dehydrogenase reactions and expect predictable results over months—not just for one publication or export run. We’ve watched contract manufacturers spend weeks tracking failures caused by poorly stored NAD. Each time, the original lot analysis sheets resolved confusion, tracing product fate from fermentation to final freeze-drying.
Pharmaceutical companies and biotech startups often call asking what makes our NAD different than third-party alternatives. Our response always returns to attention on fermentation cycles, crystal habit, and packing atmosphere. Multiple purification runs, not simple precipitation, keep non-NAD nucleotides at bay. We refuse to cut corners on filtration steps, accepting lower yields to boost purity. We meet requests for customized particle size or specific water content for those scaling up pilot lines, as these details drive process success and failure in the real world.
Blended or repacked NAD from secondary suppliers typically ‘inherits’ the problems of its source. The story behind the material—the actual route, reagents, and technical know-how—rarely gets carried over in reseller paperwork. What seems a minor difference in physical form, crystal size, or moisture results in unexpected instrument fouling, ruined reagent kits, or unstable lyophilized blends. At our factory, any change to a raw material triggers a review and stability check across affected product codes, stopping accidental drift in production quality before customers notice.
Labs using off-the-shelf NAD occasionally reach out with stories of assay drift or fading reactivity. Some buy cheap and pay for it with unreliable data, others simply don’t get told the history of what’s in the drum. By keeping our records detailed, running retention samples for every batch, and keeping technical staff available for direct conversations, we close the feedback loop quickly. A small change at the reactor or drier lands in a customer’s protocol days or weeks later—facing that reality head-on builds long-term business, even if it means reworking problem batches rather than pushing them through.
NAD’s best-known role lands in redox reactions in everything from clinical diagnosis to industrial fermentation. Medical device makers require grades pure enough for use in blood analyzer cartridges. Diagnostic companies blend our powder into reagent sticks or bulk kits and depend on it to retain potency through the distribution chain. The stakes escalate when work shifts from low-throughput university labs to multi-thousand liter fermenters, where gram-scale batch-to-batch variations add up to real cost, not just statistical noise.
Fuel ethanol plants and biotechnology labs needing metabolic engineering grade NAD draw from larger drums. Here, contamination—even at fractions of a percent—throws off entire process lines, causing shutdowns or expensive recalibration. We’ve customized specifications for customers after fielding calls about solubility hang-ups or process residuals. Improvements sometimes require hands-on visits to the user’s blending facility, checking humidity controls, and adapting our packing or granulation methods to fit real handling conditions.
Some buyers focus solely on certificate numbers, but customers with hands-on production stakes know every extra test run, every call to customer support, and every week spent validating substitutes comes out of operating budgets. We field feedback on buffer compatibility, shelf-life trends, and even send staff to help diagnose instrument fouling or odd assay performance. These interactions drive continual improvements on how NAD is extracted, dried, and sampled. The finished product benefits from this direct engagement, not through layers of paperwork or anonymous distributors.
Our oldest staff members recount shifts spent tracing air leaks, training on filter replacement, and dealing with reagent back-orders. This collective institutional memory feeds into rigorous staff onboarding—nobody skips steps, from the first cell bank thaw to the last QC vial. Micro-variations in upstream feedstock, such as a slight glucose gradient drift, shape NAD output downstream. We’ve run experiments comparing batches made under different growth conditions, tracking nucleoside and precursor levels, adjusting downstream wash cycles, and tightening up temperature curves.
Lessons come hard: a single mishandled step can derail an entire production run, wasting valuable fermentation real estate and storage. Downtime never brings pleasant memories, so adjustments are made not from abstract manuals, but lived experience on the floor. These corrections reflect in today’s batches—meticulously logged, constantly reviewed, and shared extensively throughout the operational and QC teams.
The market for NAD continues to evolve. Calls for increased customization, tighter specifications, and more transparent records rise with every customer audit. Biotech startups want DNA-verified microbial lineages, trace solvent residues, and zero carry-over from legacy runs. Equipment upgrades—such as improved lyophilization platforms and in-line moisture analysis—streamline output but demand constant training and procedural refinement.
Investments in analytical equipment don’t just produce pretty graphs. Mass spectrometry, UPLC, and high-sensitivity enzymatic assays allow rapid identification of contaminants and trace side products, catching problems before they cause downstream effects. In production meetings, we discuss raw material origins, review real-world blending tests, and adapt new cleaning protocols based on customer-submitted feed-forward data. NAD manufacturing today draws from a fusion of microbiology, analytical chemistry, engineering, and decades of hands-on problem solving—this is not a static recipe, but an evolving system shaped by real user input.
A product like NAD forms the backbone of countless laboratory and industrial protocols. Maintaining consistent performance keeps countless research and production lines running smoothly. The frustrations of troubleshooting faded activity or unexplained color changes often stem from overlooked nuances—a brief storage misstep, a supplier swapping intermediates, or a shortfall in sanitation procedures.
Our staff bear personal responsibility in every lot sent off the premises. Recertifications, audits, and customer requests for archived COAs pile up, so we keep detailed, unfiltered batch records with real-time access. New employees learn early that cutting corners leads to repeat disruptions. Information sharing among technical personnel ensures potential process drift or unexpected analytical results get addressed before products hit the road. None of this can—or should—be automated away; it takes human diligence and institutional pride to maintain consistency over years.
Daily production routines juggle conflicting pressures—maximizing output, minimizing waste, maintaining purity, reducing downtime and responding to customer emergencies. Fast fixes look tempting in any corner of manufacturing. Long-term stability comes from saying no to batch releases with questionable numbers and involving experienced chemists and engineers in each QC review. Raw materials—aqueous solvents, fermentation nutrients, sanitizing agents—receive equal attention, since hidden problems here magnify downstream.
Trials and setbacks lead to lessons shaping current-day protocols. Our staff stick to the technical playbook, making only carefully documented adjustments. That’s how we support research and commercial production lines dependent on one simple promise: every NAD drum you open will deliver exactly what you expect—and nothing you don’t.
Years of conversations with laboratory scientists, engineers, and factory managers drive continuous improvement efforts. Customers take on challenges from precise HPLC calibration to adapting NAD for high-throughput automation. We’ve shared technical tip sheets and troubleshooting protocols, worked shoulder-to-shoulder during equipment testing, and invested in training partners on how to interpret analytical results. Some commercial users request batch-specific handling suggestions based on climate, transport distance, or even planned use-case shifts.
Feedback gets logged and used to tweak everything from packaging materials to allowable solvents touched by production vessels. These adjustments, though time-consuming, hold the greatest value. They mean a user’s results aren’t undermined by unexpected variation or hidden chemical liabilities.
Having walked the path from cell culture flask to bulk drum, every stakeholder on our team sees first-hand the critical nature of a product like NAD. The strictest paperwork, cleanest documentation, and shiniest certificates can’t substitute for time spent on the line honing production craft. Consistent NAD isn’t luck—it’s sweat, vigilance, and willingness to address every lesson from the field.
Production experience shapes a strong, consistent product. Tight control over strain selection, fermentation optimization, purification methods, and packing forms the backbone. Open conversations across the supply chain—from university researchers to factory engineers—draw attention to real-world concerns, driving incremental improvements with each batch. The outcome is clear to anyone who depends on reliable, high-purity NAD to keep research, diagnostics, or production moving forward.