|
HS Code |
239990 |
| Chemical Name | N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) |
| Molecular Formula | C22H24N2O4 |
| Molecular Weight | 380.44 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 210-215°C |
| Solubility | Slightly soluble in water; soluble in organic solvents like DMSO and DMF |
| Cas Number | 19441-86-0 |
| Boiling Point | Decomposes before boiling |
| Purity | Typically >98% |
| Storage Conditions | Store at 2-8°C, keep container tightly closed |
| Synonyms | 3,3'-Dimethyl-4,4'-biphenylenebis(acetoacetamide) |
| Functional Groups | Acetoacetamide, aromatic rings |
| Application | Organic synthesis, ligand design, dye intermediates |
As an accredited N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 25 grams of N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide), sealed with a PTFE-lined cap. |
| Container Loading (20′ FCL) | 20′ FCL typically accommodates around 10–12 MT of N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide), packed in 25 kg bags. |
| Shipping | **Shipping Description:** N,N'-(3,3'-Dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) should be shipped in a tightly sealed container, protected from moisture and light. Transport at ambient temperature, labeling the package according to chemical safety regulations. Ensure compliance with all local and international shipping requirements for non-hazardous laboratory chemicals. Handle with care to avoid spillage or contamination. |
| Storage | Store **N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide)** in a tightly sealed container, in a cool, dry, well-ventilated area, away from incompatible substances such as strong oxidizers and acids. Protect from moisture and direct sunlight. Label the container appropriately, and ensure it is stored in a designated chemical storage cabinet, ideally under controlled temperature conditions, following local safety regulations. |
| Shelf Life | Shelf life: Store in a cool, dry place; stable for at least 2 years in sealed containers under recommended storage conditions. |
Competitive N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.
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Our shop floor doesn’t whisper about N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) — it makes room for it. Every batch starts with a familiarity that only producers know: a specific weight, color, and crystalline profile, expected and checked by our lab team, not by automated formulas but by people who understand the chemical on sight and smell. Model variations do exist, with purity and grain size adjusted by real hands to meet real use cases.
This compound grows from the bench, not off an order sheet. Raw materials need careful monitoring; the acetoacetamide functions demand a thorough understanding of moisture, contamination, and temperature effects. We watch how the dimethylbiphenyl core interacts, not just in the flask but all the way to the pack-out. Workers use analytical tools and sometimes their own eyes to verify color and melt profile. If you ever walked past our reactors in mid-shift, you’d see the work: careful temperature ramps, deliberate pH adjustment, and human error checks running alongside machine readings.
Every chemical company likes to describe their specialty items as unique. We don’t riff with marketing jargon. The 3,3'-dimethyl substitution in this molecule brings particular solubility and melt characteristics to the table. That does more than tweak the technical data sheet — it impacts how the product interacts with resins, crosslinkers, and solvents on the production line. You don’t get the tackiness or interference that sometimes comes with less well-designed biphenyl backbone compounds.
On the user end, workers in resin manufacturing and pigment dispersion get consistency they count on, batch after batch, even amidst variable plant conditions. The acetoacetamide branches open up compatibility, especially for those looking for flexibility in polycondensation or as a blocking agent in isocyanate chemistry. Some competitors substitute different methyl positions, thinking any biphenyl core will do. We’ve run side-by-side reactivity and solubility tests. These minor structure shifts genuinely change miscibility and reaction curves — talk to a plant manager who's run a batch with out-of-spec dimethylbiphenyl and you’ll hear about real coating failures, not just bad paperwork.
Some companies parade numbers — HPLC purity, residual solvents, melting points. Those have their place. For us, focus falls on operational reproducibility. By tuning raw input and crystallization kinetics, we aim for a batch-to-batch deviation lower than 0.2% on our main physical parameters. Our technical staff pulls samples manually from the reactor drain, dries them, and gets direct feedback on flow, compressibility, and color. We’ve learned end-users respond more to how material handles than how it looks on paper. A less compressible lot runs better in powder coating extrusion and stays lump-free under typical humidity swings.
A certain fraction of material might fall outside the tightest color spec but remain chemically pure — we don’t pass it on as prime. Long-term customers have come to trust that. Fast-lane provision isn’t our style; consistency is. As a producer, not a labeler, the consistency comes not just out of quality control samples, but from feedback sessions with actual processors and hands-on troubleshooting for demanding clients; we keep records of run history to back every claim.
Over the last decade, production partners across coatings, adhesives, and specialty polymer sectors have shifted to this compound for reasonably straightforward reasons. Its dual acetoacetamide groups grant a wider reaction window with several families of alkyds, acrylics, and polyurethane precursors. Batch failures due to gelation or phase separation drop off when moving to this backbone. Color stability is also a factor: pigment manufacturers notice less yellowing and higher batch yield. Many feedback loops started after direct plant-site evaluation, not just from test lab reports.
The usage story is shaped by more than just intended chemistry. We’ve seen a jump in demand from clients switching away from standard N,N’-biphenyl diacetamides, especially those dealing with volatile cost inputs or shifting to powder processes. Particular praise keeps coming for how well it blends without gassing and for the low resistance to dispersal in viscous resin systems. Comparatively, less refined molecules linger in filters and pipes, leading to waste and cleanup headaches. Where tolerances are tight, small changes in end-group purity or sidechain substituent make a visible difference — that lands squarely in our core experience as manufacturer.
It’s easy for suppliers to lump similar molecules together. Not all 4,4'-biphenyl-based diacetoacetamides achieve the stability of this particular 3,3'-dimethyl configuration. The methyl arrangement makes a massive difference in chemical inertness during processing at elevated temperatures; we’ve measured less byproduct formation under simulated extrusion stress compared to unsubstituted or differently substituted biphenyls. The biphenyl backbone itself, with methyls at the 3,3'-positions, shows different x-ray crystallographic packing than the 2,2' position, which comes across in improved shelf stability and dust handling.
Customers making high-value masterbatches or electronics-grade binders can’t afford flare-ups with side reactions. We hear about fouled lines or unplanned maintenance shutdowns — situations that often trace back to uncontrolled side-group reactions or batch variability. In head-to-head trials, our product has repeatedly outperformed more common isomers. The majority of our user feedback points to reduced lot-to-lot color drift and improved process safety.
Chemical manufacture isn’t a matter of switching on reactors and letting robots do the work. Raw material sourcing, batch staging, and reaction control take teamwork. Solvents must be dry; tanks must be clean — nobody likes coming in at night to strip gummed lines after a bad polymerization, and neither do we. The conditions for acetoacetamide introduction demand tight windows. Miss the window and side reactions bite. Our process engineers have learned, sometimes the hard way, the cost of cutting corners or rushing cycle times.
Direct feedback from line workers, not just QA labs, shapes each process iteration. When caking in storage became a complaint, back-and-forth between operations and technical team led us to modify drying profiles and packaging solutions. Now, fewer flowability issues in our bags, and less downtime downstream. We don’t succeed on certifications, but on shipments that meet the expected standard every time.
Every plant manager faces choices: speed up and chase incremental profits, or take the time to do it properly. We’re approached regularly by buyers who tried cutting costs with unbranded sources or traders — only to face unexplained machine stops or yellowed product. As chemical manufacturers, we’ve learned it doesn’t make sense to pass along half-baked goods. If a batch has an issue, we scrap it, eat the cost, and start over. Operators update production logs in real time, and traceability doesn’t just mean paperwork — it means knowing who actually signed off each stage.
Transparency counts. We document every solvent batch, verify each reaction input, and can point to where minor deviations occurred, even if they ended up on the cutting room floor. Trust grows on these details, not on pamphlet claims. Production partners recognize that calls to fix a bad batch are taken by someone who’s seen the reactor cloud up, not an anonymous call center.
End users are less interested in molecule names than in whether their line keeps running. Our users ask after lot continuity, resistance to discoloration in open handling, and freedom from characteristic odors that used to plague older biphenyl-based products. We hear of past years when substitutions led to inferior extrudates or unplanned color drift. Working directly with compounders who’ve experienced these issues drives us to keep process and materials in line with practical demand rather than abstract purity numbers.
Our role isn’t finished after shipping. Users sometimes return for advice when switching application methods or blending with new resin types. Those who stick with us do so because of the communication lines and response speed you only see from people who have handled and produced the chemical themselves. Every oddball complaint — residue after application, clamping problems in semi-automatic lines, filter clogging — gets tracked, tested in our pilot phase, and folded right back into process improvement.
Some newer plants look modern on paper but miss the marks in environmental and safety controls. Experience has taught us that both matter not just for compliance but for workers and surroundings. Our LEV systems intercept dust from every drier and mill. We cycle solvent vapors back through condensing tanks, not just to meet regulations, but to keep plant air tolerable and reduce community complaints.
Material handling protocol calls for regular retraining. Operators use full PPE by default, and in-process monitoring includes both classic physical checks and real-time digital logs. Management does not accept off-the-cuff shortcuts, and repeated drills mean even newer staff know the proper response for spill control, accidental inhalation, or glove breach. Clients and auditors visiting our plant often comment on the open P&ID diagrams posted in the process areas. Confidence grows from seeing safety and traceability at work, not just in PowerPoint slides.
Raw input sourcing often runs up against logistical snags, price swings, and transport delays. We keep buffer stocks to keep the shop running despite upstream shocks. Past storms taught us: not enough upstream prep means unreliable downstream delivery. Hurricanes or customs hold-ups sometimes hit, but backup warehousing and alternate sourcing let us deliver uninterrupted.
Clients counting on uninterrupted supply know our practice of sending early warnings for seasonal supply risks, not empty promises. If one input threatens to slow production, customers hear about it directly from plant management, sometimes with recommendations on acceptable interim alternatives that carry the same technical guarantee.
Every time a product like N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) gets put to work in a new context — additive in specialty coatings, functional monomer in new polymer classes, binder for advanced ceramics — client trials shape the ongoing product journey. Unlike traders, we stay in the loop, gathering technical feedback and re-tuning processes in response. Misalignments come up from real-world use, not theoretical performance, and these become the focal point for the next round of process tweaking.
We open the facility doors for technical teams, to exchange knowledge and insight — a practice that has fostered long-term business built on mutual respect. Case reviews, joint investigations, and collaborative trials yield progress, not just a sale. In this way, product and practice grow through hands-on, real-time chemical manufacturing, not arm’s length logistics.
N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) offers a proven backbone for advanced formulations, with differences that run deeper than catalog descriptions ever reach. Years of process scrutiny, customer feedback, and honest hands-on troubleshooting have honed the output into a product that serves beyond its base chemical value. From initial raw input through the last QC check, eyes and experience keep it honest.
End-users who value reliability keep coming back not for slogans, but for genuine, well-made product, clear technical support, and a manufacturer’s word. In the chemical industry, these are the touchstones that mark lasting quality and practical success.