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2,4-Dihydroxybenzamide

    • Product Name 2,4-Dihydroxybenzamide
    • Alias Protocatechuic acid amide
    • Einecs 208-701-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    438760

    Chemical Name 2,4-Dihydroxybenzamide
    Molecular Formula C7H7NO3
    Molecular Weight 153.14 g/mol
    Cas Number 2504-37-8
    Appearance White to off-white solid
    Melting Point 229-233 °C
    Solubility In Water Slightly soluble
    Inchi InChI=1S/C7H7NO3/c8-7(11)6-4(9)2-1-3-5(6)10/h1-3,9-10H,(H2,8,11)
    Smiles C1=CC(=C(C=C1O)C(=O)N)O

    As an accredited 2,4-Dihydroxybenzamide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 2,4-Dihydroxybenzamide is supplied in a 25g amber glass bottle with a secure screw cap, labeled with product and safety information.
    Shipping 2,4-Dihydroxybenzamide is shipped in tightly sealed, corrosion-resistant containers to prevent contamination and moisture absorption. The packaging complies with chemical safety regulations, including labeling and documentation for safe handling. Transport follows standard hazardous material protocols, ensuring temperature control and protection from physical damage during transit. Suitable for laboratory and industrial delivery.
    Storage 2,4-Dihydroxybenzamide should be stored in a tightly sealed container, away from direct sunlight, heat, and moisture. It should be kept at room temperature in a well-ventilated, dry area, and separated from incompatible substances such as strong oxidizers. Proper labeling and secure storage will help prevent contamination and unauthorized access. Always follow standard chemical storage protocols and safety guidelines.
    Application of 2,4-Dihydroxybenzamide

    Applications of 2,4-Dihydroxybenzamide in Industrial Manufacturing

    As a specialized manufacturer, we supply 2,4-Dihydroxybenzamide to diverse industries where it serves precise chemical and functional roles. Below are specific industrial applications, with details targeting regulatory compliance, manufacturing ratios, process integration, and finished product outcomes.

    1. Pharmaceutical Intermediate for API Synthesis

    2,4-Dihydroxybenzamide acts as a core building block in the synthesis of multiple active pharmaceutical ingredients, particularly in the production of selective COX-2 inhibitors and certain phenolic drugs. Pharmaceutical manufacturers rely on its high purity grade in controlled reaction environments. The raw material undergoes amidation and hydroxylation steps under GMP procedures, with integration at pre-final intermediate stages for process consistency and compliance.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • Current Good Manufacturing Practice (cGMP) as specified by FDA 21 CFR Part 210/211
    • European Pharmacopoeia Monographs (where applicable for finished molecule)
    • USP General Chapter <1078> for impurity profiling

    Typical usage ratio

    • 0.2 mol to 1.0 mol relative to targeted API batch yield
    • Ratio adjusted by molecular stoichiometry, impurity control, and scale of specific pharmaceutical synthesis

    Downstream process integration

    • Introduced after initial aromatic ring functionalization
    • Used in amidation reaction under inert atmosphere within jacketed reactors
    • Purity tested by HPLC before transfer to coupling stage
    • Washing and crystallization steps follow to purify intermediate

    Final product types

    • Cyclooxygenase-2 (COX-2) inhibitor APIs
    • Hydroxyphenylamine-based anti-inflammatory drugs
    • Specialty intermediates for antipyretics and analgesics
    • Bulk pharmaceutical chemicals for onward synthesis

    2. Dye Intermediate for Azo Compound Manufacturing

    The material functions as an essential intermediate in the formulation of high-stability azo and anthraquinone dyes. Dye manufacturers integrate the compound for controlled synthesis of chromophoric groups due to its consistent reactivity. The application involves coupling it with aromatic amines under alkaline conditions to produce specialty coloring agents for textiles and plastics.

    Industry compliance standards

    • Oeko-Tex Standard 100 for ecological textile production
    • REACH Regulation (EC) No 1907/2006 for registration and safety
    • ZDHC MRSL (Zero Discharge of Hazardous Chemicals) for input chemicals
    • ISO 9001:2015 quality management requirements for process control

    Typical usage ratio

    • 5% to 15% by weight relative to total dye intermediate charge
    • Varies based on target dye chemotype and intensity; adjusted for shade and fastness specifications

    Downstream process integration

    • Charged into diazotization and coupling reactors after initial solution preparation
    • Reacted with substituted aromatic amines to create specific dyes
    • Product washed, filtered, and subjected to pH adjustment for isolation
    • Stabilized with sodium sulfate and acetate where required

    Final product types

    • Synthetic azo dyes for polyester and cotton fabrics
    • Reactive dyes for cellulosic fibers
    • Pigmented color concentrates for thermoplastics
    • Water-dispersible colorants for inks and coatings

    3. Photographic Chemical Intermediate

    In silver halide photographic processing, 2,4-Dihydroxybenzamide enters as a fine chemical for developer or stabilizer synthesis. The compound’s hydroxy and amide groups confer controlled reactivity in imaging chemistry, supporting the formulation of photographic developers used in professional imaging and radiography.

    Industry compliance standards

    • ISO 18901: Imaging materials — Processed silver-gelatin type black-and-white films
    • EN 14074: Chemicals used for photographic processing
    • GHS labelling and MSDS for safe handling
    • ICPE (Imaging Chemicals Product Evaluation) best-practices documentation

    Typical usage ratio

    • 0.3% to 1.2% by total weight of developer concentrate
    • Exact percentage regulated by required image contrast and processing speed parameters

    Downstream process integration

    • Compound blended with other development agents in stainless mixing tanks
    • Dissolved in aqueous or buffered solution as part of the developer concentrate
    • Undergoes filtration and standardization before bottling
    • Stability tested for shelf-life and homogeneity

    Final product types

    • Photographic developer concentrates for silver halide films
    • Monobath developer-fixer solutions for laboratory use
    • Stabilizing chemicals for digital photo paper
    • Radiographic imaging chemicals for medical diagnostics

    4. Polymer Stabilizer Additive

    2,4-Dihydroxybenzamide is engaged as an antioxidant or UV stabilizer precursor during compounding of specialty engineering polymers. Its phenolic structure assists in prolonging shelf-life and performance of plastics under thermal or light stress. Downstream polymer manufacturers dose the raw material during the pelletizing or masterbatch preparation phase, ensuring thorough dispersal and efficacy.

    Industry compliance standards

    • UL 94 plastics flammability standard
    • FDA 21 CFR 177.1520 (where suitable for food-contact polyolefins)
    • RoHS Directive 2011/65/EU for hazardous substance limits
    • ASTM D256 for impact-resistance plastics testing

    Typical usage ratio

    • 0.05% to 0.5% by polymer mass
    • Adjusted according to polymer matrix type and ageing performance

    Downstream process integration

    • Fed via gravimetric dosing at extruder throat in pellet compounding
    • Pretreated with compatibilizer where necessary
    • Integrated as part of antioxidant/stabilizer packages
    • Mixed under controlled temperature and nitrogen blanket to prevent degradation

    Final product types

    • UV-stable polyethylene and polypropylene pellets
    • Masterbatches for polycarbonate and ABS applications
    • Extruded films and foam panels with extended weathering resistance
    • Stabilized engineering thermoplastics for automotive interiors

    5. Corrosion Inhibitor Formulation in Metalworking

    In the metalworking and surface treatment sector, 2,4-Dihydroxybenzamide serves as a specialized chelating agent and corrosion inhibitor in water-based fluids. Plant operators blend the compound into cutting fluid concentrates to protect ferrous and non-ferrous metals against acidic attack. Careful formulation ensures compatibility with biocides and lubricants present in workshop environments.

    Industry compliance standards

    • ASTM D4627: Standard Test Method for Iron Corrosion in Water-Based Metalworking Fluids
    • DIN 51360-2: Testing of lubricants — Kesternich test
    • OSHA Hazard Communication Standard 29 CFR 1910.1200 for workplace safety
    • TRGS 611 German Technical Rules for Hazardous Substances (cooling lubricants)

    Typical usage ratio

    • 0.02% to 0.1% by volume in ready-to-use coolant formulations
    • Level set by corrosion test requirements and environmental discharge limits

    Downstream process integration

    • Mixed at concentrate preparation phase with synthetic or semi-synthetic bases
    • Homogenized through high-shear mixing equipment
    • Quality controlled for solubility and anti-corrosion capacity
    • Drum-filled for direct dilution in plant systems

    Final product types

    • Fully formulated water-based cutting fluids
    • Coolant and lubricant concentrates for metal machining
    • Presswork anti-rust additive blends
    • Surface treatment solutions for pre-coating applications
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    Certification & Compliance
    More Introduction

    Introducing 2,4-Dihydroxybenzamide: Proven Value From Hands-On Manufacturing

    Why 2,4-Dihydroxybenzamide Deserves Attention

    In the world of specialty chemicals, we see 2,4-Dihydroxybenzamide playing a clear role for clients who want more reliability out of their raw ingredients. Chemists working with aromatic amides recognize the crucial place that this molecule fills—especially when handling advanced synthesis routes or looking to ensure product purity at every step. Its makeup delivers two distinct hydroxyl groups on the benzene ring, together with a reactive amide, which gives manufacturers plenty of options for transformations. If you ask teams engaged in organic synthesis or pharmaceutical development, purity and repeatability often determine the difference between a good batch and a failed process. Having produced thousands of kilograms over the past years, we have plenty to say about what matters most both on the shop floor and in the lab.

    Model and Specifications—What Sets Ours Apart

    In day-to-day production, 2,4-Dihydroxybenzamide stands out because of its versatility. Our standard grade comes with an assay above 99 percent, limiting trace impurities that could spoil downstream reactions. Through carefully controlled crystallization, we deliver a well-defined white to pale beige crystalline powder with very low moisture content. All batches pass through strict spectrometric and chromatographic checks. Routine FTIR and HPLC monitoring help identify unwanted peaks before packing. This approach saves chemists from mystery side reactions and sticky filtration steps later on. If the melt point comes in at a consistent 195 to 199 °C, the process team knows the product remains true-to-form. By investing in dedicated reactors and solvent recovery, we've found a way to keep batch variation low—even at multi-ton scale. This consistency isn't just lab-speak; it means customers can move straight to their own synthesis instead of running endless purification cycles up front.

    Proven Use Cases in Real-World Labs and Plants

    Research teams often turn to 2,4-Dihydroxybenzamide because the structure lends itself to transformation in a surprisingly broad range of settings. It serves as a core intermediate in synthesizing pharmacologically active molecules and agrochemicals. By modifying the amide nitrogen or introducing new substituents to the benzene scaffold, chemists find dozens of paths to complex targets. Many find it invaluable as a building block in designing selective inhibitors, dyes, stabilizers, or UV-absorbers. Applications in polymer science take advantage of those hydroxyl groups for functionalization. Material scientists playing with surface treatments and coatings often use it to tailor physical properties. All along, traceability and reproducibility come into play—nobody welcomes a variable ingredient. This is why using material produced on modern, continuous lines pays off, whether in a kilo lab or a full-scale pilot plant.

    Process Experience—Keeping Quality From Batch to Batch

    Those of us running reactors know the headaches that come from inconsistent upstream supply. We've learned over long runs that enumeration is not enough—repeat physical checks carry just as much weight. Over the years, by tuning reaction temperature ramps and holding times, our team has achieved low impurity content and the right granule profile for efficient handling. We notice the difference in flow rates and filtration times with our optimized batch protocol compared to old, poorly managed runs. Moisture control in both raw stock and final packing routinely makes the difference between a free-flowing bench sample and one prone to clumping or caking. For our partners, this translates both to yield and safety. Emergency downtime from a clogged feed line is never welcome, and by working directly from raw input to isolated product, we skip the pitfalls of cross-contamination that show up in reprocessed material. Low bioburden and absence of extraneous organic residues help ensure that each order mirrors the last—nothing left to chance or supplier-luck.

    What Makes 2,4-Dihydroxybenzamide Distinct

    There are plenty of compounds in the benzamide family, so it’s worth pinning down where 2,4-Dihydroxy stands apart. Placement of those hydroxyl groups brings altered solubility and reactivity. For projects demanding site-specific chemical reactivity, such as stepwise functionalization, this structure offers tools that its 2-hydroxy or unsubstituted cousins do not. Some may see alternatives like 3,4-dihydroxybenzamide, but, based on our experience, reactivity in nucleophilic aromatic substitution and ease of downstream transformation differ dramatically. Purification steps tighten up, and post-reaction isolation becomes much more manageable with the right substitution pattern. These are not trivial differences—choosing the right isomer changes everything from formulation to shelf life.

    Supporting Claims With True Metrics, Not Marketing

    Any manufacturer can promise high purity; few can show consistent data over multi-year timelines. Running comparative analytics batch-over-batch, we’ve kept off-spec returns to under one percent for five consecutive production years—one marker of real steadiness in output. Reverse-phase HPLC and mass spec checks operate before drums get the green light for shipment. We publish typical NMR and purity data for buyers ready to verify our performance. Each drum can be traced back to a specific reactor run, with all logs attached. When enforcement agencies stepped up regulatory audits last quarter, full traceability and the absence of questionable supply sources meant no sleepless nights for us or our customers.

    Field Challenges and Practical Solutions

    Expanding global demand often means juggling raw material sources, so we’re honest about sourcing droughts and shipping hiccups. Rather than stretching output when quality would drop, we increase buffer stock and build backup vendor agreements. Chemists give us clear feedback: unreliable supply runs projects off the rails, especially in scaling-up phases. Maintaining tight on-spec product and just-in-time delivery acts as a challenge, so our warehouse and production schedules stay flexible to catch up with urgent orders. Direct, responsive communication bridged gaps when some forwarders delayed port clearance during the last shipping crunch. Our decades-old direct supplier contacts help avoid last-minute surprises or forced air shipments that could have damaged product quality.

    The Difference Only Direct Manufacturing Can Bring

    Having the material come straight out of our reactor lines rather than routed through anonymous consolidators pays off. We control the raw input, monitor every step, and rapidly catch deviations before loose standards come into play. Direct clients get not just a COA, but full transparency—batch data, analytical charts, and supporting logs to back up each metric. Problems become easier to troubleshoot and repeat purchases require no new learning curve. After coatings and ligands developers shared contamination horror stories with generic, resold batches from abroad, we adjusted our cleaning protocol and ran a tight discipline on process analytics. This paid off both for us and our core customer base aiming to scale from grams to tons.

    Meeting Regulatory and Sustainability Expectations

    Modern chemical manufacturing must face up to environmental and workplace safety standards. Solvent recycling and low-emission processes are key, not just for compliance but for cost and community health. Routine audits and operator training form the backbone of our day-to-day, not a last-minute scramble when authorities make a visit. Waste stream management and emission controls get handled with just as much attention as packing or warehousing. When supply chain partners show up for quality or sustainability audits, every stage of the process can be demonstrated in detail—from raw solid intake through final drum loading. These moves are more than window-dressing: an avoidable environmental compliance fine delays shipment and disrupts everyone who built their timeline around a trusted supply.

    Perspectives From Our Partners in Research and Production

    Feedback from R&D chemists tells us the story that most purchasing teams miss. Reproducibility in medicinal chemistry or polymerization work begins with source materials. A kilo sample batch from last quarter still matches the profile this quarter—no new artifacts or unexpected byproducts to confound the next reaction. Some groups tackling combinatorial synthesis on new inhibitor frameworks look for grams at a time; others developing pilot-scale material for launch demand tons with no batch-to-batch drift. We’ve learned to deliver both without compromising what makes this building block reliable. Application engineers working with surface coatings or technical textiles appreciate the uniform flowability and the absence of agglomeration, which cuts down on time spent prepping for their own downstream steps.

    Comparing 2,4-Dihydroxybenzamide to Alternatives

    To a synthetic chemist, how a hydroxyl group sits on the benzene ring steers not just reactivity, but solubility, crystallinity, and suitability for further transformation. Our direct feedback from process chemists shows 2,4-Dihydroxybenzamide regularly outperforms monosubstituted or meta-isomer products in stepwise derivatization. As an intermediate for more advanced functional molecules, the dual ortho-para substitution pattern supports regioselective reactions otherwise difficult or impossible with unsubstituted or alternative dihydroxybenzamides. The difference shows most clearly in reaction rate, product yield, and post-reaction work-up, especially in multi-step syntheses within pharmaceutical contract manufacturing projects. Several customers reported cutting purification time by up to 30 percent after switching from less pure, off-isomer variants.

    Handling, Storage, and Downstream Compatibility

    Chemists and warehouse managers find that stringent moisture and contaminant control during every step from vessel unloading to drum sealing pays long-term dividends. We invested in automated, sealed packaging lines for this product, keeping atmospheric water away and reducing the chances of caking. It’s typical for repacked or resold product to arrive with small but problematic moisture uptake, especially after long shipping routes through humid climates. Our vacuum-sealed drums keep the powder dry from packing through delivery, supported by desiccant packs and standardized palletization. This gives our clients fewer headaches with material separation and allows for direct use in solution-phase or solid-state processes.

    Supporting Ongoing Customer Innovation

    Innovation doesn’t stem from untested raw ingredients. Customers expect actionable analytical data for every lot. We maintain a rolling archive of spectral data for comparison and troubleshooting as pilot projects put new demands on old intermediates. With our batch documentation and ready access to archived samples, repeat buyers work with confidence—knowing we can review anything from last week or last year at a moment's notice. In more than one case, our clients’ work in new molecular modifications pushed us to run tandem analysis and extra purification cycles to meet a critical project need. This direct channel between synthesis, analysis, and customer use acts as a living feedback loop, supporting incremental improvement and long-term partnership.

    What the Future Holds In 2,4-Dihydroxybenzamide Manufacturing

    Between tightening standards and the complexity of new chemical entities, the bar for specialty intermediates keeps rising. We see more clients demanding full traceability, advanced analytics, and sustainable process certifications before even opening negotiations. Our response has been to double down on direct investment—new reactors, tighter in-line QC, and real-time process analytics that flag anomalies. None of this means more cost or red tape for the purchaser. Instead, these changes guarantee that projects relying on tight timelines and steep purity requirements keep moving. We invest in staff and infrastructure, not just for today’s projects, but for the inevitable push toward more sustainable, circular chemical supply chains.

    Solving Persistent Industry Challenges

    Running a chemical manufacturing operation rarely goes according to plan. Across seasonal demand spikes and supply chain bottlenecks, we build our schedule with room for emergency production runs and flexible logistics. Regular incident drills and clear internal communication keep our teams moving, ensuring the last-mile delivery matches what’s inside the drum. Serving customers at the forefront of pharmaceuticals and specialty materials means our job doesn’t end at shipment. We address problems with on-the-ground, practical support—navigating paperwork, sharing detailed cleaning logs, and adjusting to shifting technical requirements in real time. In this industry, a direct, informed approach trumps bureaucracy every time.

    Manufacturing With Purpose—Direct Benefits For Today’s Chemists

    Every decade of direct experience in making 2,4-Dihydroxybenzamide yields practical benefits for our customers. Predictability in homogeneity, transparency in analytics, and no handshake deals with blind third parties give us a unique selling point. The era of off-book consolidation and vague provenance has waned. Chemists counting on this intermediate for new therapies, coatings, or technological breakthroughs prefer knowing where their material began, every step it took, and what hands it passed through. We remain committed not just to supply, but to communication and partnership that puts projects ahead of paperwork. From raw input selection to finished lot analytics, we bring direct insight and a track record of results, not generic sales promises.