Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

2-(4-Hydroxybenzoyl)Benzoic Acid

    • Product Name 2-(4-Hydroxybenzoyl)Benzoic Acid
    • Einecs 242-487-2
    • 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

    601795

    Productname 2-(4-Hydroxybenzoyl)benzoic acid
    Molecularformula C14H10O4
    Molecularweight 242.23 g/mol
    Casnumber 5397-89-1
    Appearance White to off-white powder
    Meltingpoint 218-221°C
    Solubility Slightly soluble in water, soluble in organic solvents
    Purity Typically ≥98%
    Pka 4.1 (carboxylic acid group), 9.7 (phenolic group)
    Density 1.38 g/cm³ (approximate)
    Iupacname 2-(4-hydroxybenzoyl)benzoic acid
    Synonyms 4-Hydroxybenzoyl-o-benzoic acid
    Structuretype Aromatic carboxylic acid
    Storageconditions Store at room temperature, protect from moisture

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

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 2-(4-Hydroxybenzoyl)benzoic acid, labeled with chemical name, purity, and safety warnings.
    Shipping The chemical **2-(4-Hydroxybenzoyl)benzoic acid** is shipped in tightly sealed containers, protected from light and moisture. Packaging complies with applicable chemical safety regulations to prevent leaks or contamination. During transit, the chemical is clearly labeled with hazard information, and handled in accordance with industry standards for safe transportation of laboratory reagents.
    Storage 2-(4-Hydroxybenzoyl)benzoic acid should be stored in a tightly sealed container, protected from light and moisture. Keep it in a cool, dry, and well-ventilated area, ideally at room temperature or below. Store away from incompatible substances such as strong oxidizing agents. Handle with care, using appropriate personal protective equipment to prevent skin and eye contact.
    Application of 2-(4-Hydroxybenzoyl)Benzoic Acid

    Applications of 2-(4-Hydroxybenzoyl)Benzoic Acid in Industrial Manufacturing

    As an established chemical raw material producer, we supply high-grade 2-(4-Hydroxybenzoyl)benzoic acid for specialized industrial applications. Our material supports downstream manufacturers in advanced sectors where strict regulatory standards, advanced process integration, and precise formulation control are vital to operational success.

    1. Photoinitiator Manufacturing for UV-Cured Coatings

    Our 2-(4-Hydroxybenzoyl)benzoic acid serves as a key intermediate in the synthesis of specific benzophenone-based photoinitiators used in UV-curable coatings. This application demands high material purity to ensure consistency in photoinitiator batch quality, directly influencing polymerization speed and film performance in end-use products such as automotive OEM clearcoats and high-gloss digital printing inks. Chemical handling in this scenario requires compliance with occupational exposure limits and documentation for REACH registration in Europe as well as TSCA inventory listing in the United States.

    Industry compliance standards

    • EU REACH Regulation (EC) No 1907/2006
    • TSCA (Toxic Substances Control Act) – USA
    • DIN EN ISO 9001:2018 – Quality Management Systems
    • OSHA 29 CFR 1910.1200 – Hazard Communication Standard

    Typical usage ratio

    • Intermediate incorporated at 0.5–2.0 wt% in final photoinitiator synthesis batch; actual ratio adjusted based on target absorption properties and resultant photoinitiator molecular structure.

    Downstream process integration

    • Introduced during the condensation reaction for photoinitiator base synthesis; maintained under inert atmosphere to prevent side reactions with atmospheric oxygen.

    Final product types

    • Benzophenone-based photoinitiators (e.g., BP-4 derivatives)
    • UV-cured acrylate coatings for wood and plastics
    • Offset and digital printing UV inks
    • High-durability automotive clearcoats

    2. Specialty Liquid Crystal Material Synthesis

    Chemical companies employ 2-(4-Hydroxybenzoyl)benzoic acid to produce certain mesogenic esters and aromatic intermediates for liquid crystal display (LCD) materials. This application demands trace impurity control, as even minor contaminant levels impact molecular alignment and phase transition temperatures. Liquid crystal production for modern displays integrates this raw material during the synthesis of key core units in LC mixtures, subject to electronics industry guidelines for purity and environmental safety.

    Industry compliance standards

    • IEC 60810:2014 (International Standard for LCD components)
    • RoHS Directive (2011/65/EU)
    • ISO 14001:2015 (Environmental Management Systems)
    • Sony SS-00259 (Green Partner Environmental Quality approval for electronics supply chain)

    Typical usage ratio

    • Employed at 0.1–0.3 molar equivalent in the synthesis step for mesogenic core units, with precise adjustment according to the final LC mixture design and birefringence requirements.

    Downstream process integration

    • Added during solution-phase esterification or acid chloride formation under controlled low-moisture and temperature conditions to preserve structural integrity of the resultant LC intermediate.

    Final product types

    • Liquid crystal mixtures for TFT and IPS LCD panels
    • Advanced mobile display substrates
    • Industrial display modules
    • Specialty LC films for polarizers and backlights

    3. API Intermediate in Nonsteroidal Anti-Inflammatory Drug (NSAID) Synthesis

    In the pharmaceutical sector, downstream manufacturers utilize 2-(4-Hydroxybenzoyl)benzoic acid as a building block for select NSAID active pharmaceutical ingredients, particularly where a benzophenone backbone is required for efficacy and safety profiles. This application handles stringent regulatory environments, including mandatory GMP production controls and multi-stage validation protocols to satisfy global pharmacopoeia standards during bulk intermediate manufacture.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for APIs
    • United States Pharmacopoeia (USP)
    • European Pharmacopoeia (Ph. Eur.)
    • Chinese Pharmacopoeia (ChP)

    Typical usage ratio

    • Used at 1.0–1.2 molar equivalents relative to amine or acid chlorides in the final coupling steps, with precise adjustment based on API batch yield optimization.

    Downstream process integration

    • Input into amide or esterification stage as a purified crystalline solid, followed by solvent removal and crystallization to prepare the next step towards the finished pharmaceutical ingredient.

    Final product types

    • NSAID bulk APIs for human pharmaceuticals
    • Veterinary analgesic drug intermediates
    • Anti-inflammatory finished tablets and capsules

    4. Functional Monomer for High-Performance Polymers

    Advanced polymer producers incorporate 2-(4-Hydroxybenzoyl)benzoic acid as a multifunctional monomer in the synthesis of polyesters and polyarylates, particularly those requiring enhanced dimensional stability, color retention, and UV durability for engineering plastics. This use targets sectors like electronics and high-visibility construction components, driving formulations toward low-volatile, high-strength matrices.

    Industry compliance standards

    • UL 94 Flammability Standard
    • EN ISO 11357 (Thermal Analysis of Plastics)
    • RoHS Directive (2011/65/EU) for electronic applications
    • REACH Regulation (Annex XVII restriction check for monomers)

    Typical usage ratio

    • Applied at 2–8 mol% in co-polymerization batches, with ratios fine-tuned according to the performance profile and molecular weight targets for the end polymer.

    Downstream process integration

    • Charged during polycondensation with dihydroxy or dicarboxy monomers; processed in molten or solvent-phase reactors to achieve narrow molecular weight distribution.

    Final product types

    • High-performance engineering plastics (e.g., specialty polyarylates)
    • Flame-retardant films and sheets
    • UV-resistant architectural glazing
    • Precision-molded electronic housings

    5. Light Stabilizer Intermediate for Polymer Additives

    Producers of advanced light stabilizer systems use 2-(4-Hydroxybenzoyl)benzoic acid as a core intermediate in synthesizing benzotriazole and benzophenone UV absorbers. In this context, careful control of reaction parameters guarantees high-purity intermediates that directly affect the absorber’s ability to improve weather resistance and color retention in polymers exposed to aggressive outdoor environments, such as polyethylene films and automotive plastics.

    Industry compliance standards

    • ISO 4892-2:2013 (Plastics – Methods of exposure to laboratory light sources)
    • FDA 21 CFR 177.1520 (Polymers for food-contact articles, for indirect additive assessment)
    • GMP for Additive Manufacturing (EFfCI GMP Guide for Cosmetic Ingredients where applicable)
    • REACH Annex XIV authorization for UV stabilizers

    Typical usage ratio

    • Integrated at 1–5 wt% in stabilizer synthesis reactions, adjusted to achieve targeted UV absorption spectra and migration characteristics in the final additive formulation.

    Downstream process integration

    • Fed into alkylation or triazole ring closure stages, followed by purification protocols specific to light stabilizer intermediate isolation before downstream blending with plastic masterbatches.

    Final product types

    • Benzotriazole-based UV absorbers
    • Polyolefin masterbatches for outdoor films
    • Weathering-resistant auto interior plastics
    • Polymer additive concentrates for extrusion and compounding
    Free Quote

    Competitive 2-(4-Hydroxybenzoyl)Benzoic Acid prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    2-(4-Hydroxybenzoyl)Benzoic Acid: From Our Reactor to Your Application

    What Sets Our 2-(4-Hydroxybenzoyl)Benzoic Acid Apart

    In chemical manufacturing, the real challenge isn’t just reaching a number on a purity report—it’s delivering reliable performance batch after batch. We have spent years refining our approach to 2-(4-Hydroxybenzoyl)benzoic acid production. Our methods hinge on precision and careful monitoring of each step, from raw starting materials to the final crystalline product. What we deliver comes directly from our reactors, under the watch of operators who understand that quality means more than test results. It’s the consistency and trust built over years of hands-on experience. We do not just analyze a batch—we know the story behind every drum we ship.

    Understanding the Product: Molecular Details and Production Process

    2-(4-Hydroxybenzoyl)benzoic acid has the molecular formula C14H10O4, and its identity reveals a lot about its behavior. The compound features a hydroxy group in the para position relative to the benzoyl moiety, which distinguishes its applications and reactivity. In the factory, the synthesis requires both vigilance and patience. The reaction involves an acylation of salicylic acid derivatives with p-hydroxybenzoic acid or their suitable equivalents, monitored throughout by experienced chemists. Small temperature swings and trace impurities influence yield and quality—operators see it on chromatograms and in the yellowish-white color of the pure product.

    Each stage, from charging raw materials to final filtration, leaves its mark. Standard procedures are full of quick checks—solubility in ethanol, melting point tests, scanning for contaminants like residual starting acids or solvents. Our teams work on keeping the total impurity load low, often below 0.5%. We do not just look at numbers; we watch for subtle clues, like a change in filtration speed or a faintly different odor, that tell us something’s off before the analytics confirm it. This hands-on awareness makes the difference between a batch that meets specifications and a batch that delivers uninterrupted performance in downstream synthesis.

    From Quality Control to Real-World Use

    Customers expect more than chemical identity. They need material that behaves predictably for pharmaceuticals, dyes, and advanced polymers. Past lessons matter. Each time a customer has called with an issue—delayed crystallization, unexpected coloration, low assay—our technical team has gone back to the reactor logbooks and inventory records. Adjustments in equipment cleaning or the sequence of additions can make all the difference. Quality control is not an afterthought; it’s an integrated process. Testing finished product in-house using NMR, HPLC, and mass spectrometry ensures the molecule meets expectations. It’s not enough to hit a minimum assay—clients value the extra effort to suppress trace byproducts that can derail sensitive syntheses.

    2-(4-Hydroxybenzoyl)benzoic acid plays a role as an intermediate, especially in the pharmaceutical sector. Its structure supports further derivatization, which makes it valuable for developing certain nonsteroidal anti-inflammatory compounds and UV-absorbing agents. Customers have commented that too much residual moisture, trace solvents, or even particle size inconsistencies slow down their own processing or force additional filtration steps. We act on this information, optimizing our drying and milling operations, aiming for clean, free-flowing powder with tightly controlled particle size distribution.

    Comparisons: Industry Insight into Alternative Products

    Some manufacturers supply 2-benzoylbenzoic acid or similar compounds with substitutions on the ring. Small chemical differences, such as the presence or absence of a hydroxy group, paint a different chemical portrait. The hydroxy substitution on our product gives customers more options for downstream chemistry, especially in nucleophilic substitution and condensation reactions. It alters electron density, providing a different reactivity profile and enhancing versatility for research chemists pushing the boundaries of molecular design.

    Compounds without the hydroxy group might work in similar contexts, but the possibilities shrink. Some manufacturers bypass extensive purification, targeting only broad industry requirements. Our commitment comes from experience: downstream reactions don’t always forgive inconsistent quality. Customers have returned to our production time and again, citing improved batch yields and fewer purification cycles. These comments reflect years of experience and collaboration. We’ve found that attention to small distinctions—batch records, trace impurity tracking, analytical trend analysis—drives customer confidence and keeps their processes running reliably.

    Specifications and the Practicalities of Manufacturing

    Each kilogram of 2-(4-hydroxybenzoyl)benzoic acid matches long hours spent zeroing in on optimal conditions in the plant. We monitor melting point—usually between 192 °C and 196 °C—since a shift here can indicate minute impurities or process variation. This melting point consistency, batch by batch, reassures our partners downstream. Assay by HPLC frequently comes in at 99.0% or better, a number supported by both GC and TLC checks. Water content is kept below 0.5%, traced by Karl Fischer titration. The appearance—a yellowish to white crystalline powder—serves as a practical check routinely used by technicians as an early warning system for any process drift.

    Stability is important for shipping and storage. We use airtight packaging, protecting against atmospheric moisture, and recommend cool, dry storage based on empirical observations. A surprising source of customer frustration over the years has been slow caking due to residual solvent; we addressed this by redesigning our drying protocol, adding additional checks for process completion, and confirming on each shipment. Longevity isn’t just about shelf life—it’s about whether the product maintains its flow and reactivity even after months or a year in a customer warehouse.

    From Factory Floor to Final Formulation: Customer Experience Matters

    We’ve walked factory floors, listened to customer bottlenecks, and learned that logistical and packaging quirks often make or break a successful project. Some discoveries came through trial and error. Bulk shipments suffered bridging in silos until we adapted particle size controls. In smaller pharma and R&D labs, researchers asked for smaller pack sizes to minimize exposure and avoid repeated weighing, which can alter the product if left uncapped. Packaging choices evolved so that material arrives as expected—an investment in customer peace of mind.

    A meaningful part of our process improvement comes from customer conversations. Comments about reactivity in complex syntheses, filtration times, even something as routine as lab cleanliness after weighing out product—each has shaped how we refine not just manufacturing, but also the way we support customers with documentation, packaging options, and flexible delivery schedules. The truth is, manufacturing gets better as partnerships strengthen. We want customers to trust what arrives off our loading dock because it reflects the same product and commitment every time.

    Applications: Beyond Basic Chemistry

    Chemists use 2-(4-hydroxybenzoyl)benzoic acid for far more than its core function as a synthetic intermediate. In the pharmaceutical field, it lends itself to the creation of specialty molecules. Its structure makes it a preferred starting point for certain anti-inflammatory medications. The compound’s robust profile appeals to organizations researching new medicines, as its chemical stability and reliable reactivity open more doors for synthetic exploration. Production teams report how crucial it is to have starting materials that won’t introduce variation in downstream reactions, especially where human health is concerned.

    In dye manufacture, its resonance-stabilized structure and reactive sites give color formers and specialty pigment producers what they need for advanced color performance. End-users in materials science, especially those experimenting with new UV-absorbing coatings or advanced plastics, comment that small changes in raw material purity or physical form impact the optical properties or strength of their final goods. We’ve learned to fine-tune particle size, control morphological consistency, and avoid contaminants that would otherwise produce costly rework.

    Regulatory, Safety, and Transparent Manufacturing Practices

    Working in chemical manufacturing today means more than filling an order. It’s a question of making sure what leaves our gates stands up to scrutiny—by regulators, quality auditors, and our own production team. We routinely test our product for residual metals and common organic impurities. Experience has shown that overlooking even minor sources of cross-contamination—think shared dryers or insufficient equipment cleaning—adds risk and undermines our reputation. We do not take shortcuts. Certificates of analysis document each batch, supported by full traceability and the option for extended impurity profiling on request.

    Safety remains a running thread—both in our facility and in what we put in customers’ hands. Based on experience handling thousands of kilograms over the years, we provide recommendations drawn from real incidents—safe handling, PPE, proper storage. Each safety data sheet reflects not just theoretical hazards but also observations from the real world. Most importantly, customers have an open channel for sharing any incident or near-miss, and we act on this feedback to update internal protocols.

    Environmental Impact and Sustainable Production Choices

    Sustainability now sits at the center of chemical manufacturing decisions. Our process evolves every year, not just as a reaction to regulation but also as a matter of company principle. Solvent recovery from acylation and recrystallization steps helps reduce waste and lowers environmental load. Our teams began by optimizing filtration to reduce frequent filter changes and solvent disposal. Incremental changes—using safer alternatives, targeting near-complete conversions to reduce byproducts—add up. We track emissions, report openly on effluent quality, and invest in process tweaks that make each campaign cleaner than the last.

    Customers ask about the environmental profile of their inputs more often than ever. We welcome those questions. Our open-door policy means customers can audit us, see how solvents are managed, how energy is used in drying, and what measures reduce water use or emissions. These practical answers matter in today’s world, where end-consumers and regulators demand more than promises. Sharing best practices and learning from others across the industry helps everyone raise the bar—safer, greener chemistry is not only a market demand but a practical responsibility we take seriously.

    Reliable Supply in an Unpredictable Global Market

    Global markets shift fast. Over the past decade, we have witnessed raw material tightness, logistics slowdowns, and cost spikes that forced fast problem-solving. Weather events, shipping gridlocks, and sudden regulatory changes challenged us to keep product moving without compromising on standards. Our response has been to deepen relationships with steady suppliers, invest in secondary sourcing, and keep larger-than-average inventory buffers. This isn’t about locking up capital—it’s about making sure partners down the chain get uninterrupted supply, even during uncertain times.

    Some lessons came hard. Substituting raw materials under pressure can create issues down the line—color instability, reactivity drift, new impurity profiles. We learned to document each change, run trial syntheses, and keep customers informed about why a given batch might differ from the last. Our willingness to be transparent, even if it means a delay or small premium, shows clients that our commitment isn’t just lip service. We believe this approach pays back in mutual trust, fewer surprises, and smoother collaborations for all involved.

    Building Tomorrow’s Chemistry: Ongoing Innovation

    Manufacturing isn’t static. Our R&D team regularly reviews not just the literature, but also in-plant data, looking for efficiencies and safer methods. Some improvements spring from operator suggestion—a tweak to agitation speed, more precise pH endpoint detection, or a change in crystallization solvent. Others result from collaborating with academic partners or technology providers piloting greener or more efficient processes. Each year, we invest in process safety improvements and analytical upgrades—faster identification of off-spec batches keeps problems contained and gets production back on track sooner.

    Customers bring real-world challenges to our door: requests for lower residual solvent, alternative pack sizes, or guidance for niche analytical questions. For example, one client’s R&D team needed a grade with higher light stability; we developed a new grade by refining our recrystallization, and the process spread to improve the baseline. Years of experience tell us that, above all, a willingness to adapt (backed with chemical know-how) keeps us relevant as demands shift.

    Long-Term Value: Earning Trust One Batch at a Time

    In chemical production, reputation grows with every shipment that arrives on time, every challenge resolved through honest dialogue, and every investment in better practice. 2-(4-Hydroxybenzoyl)benzoic acid isn’t just another product on a list—it’s a reflection of detailed work, respect for the discipline of chemistry, and consistent focus on improvement. Our team understands the needs behind each order, whether that’s for a full container headed to a multinational or a small pack dispatched to a biotechnology startup. We invest in communication, quality, and the steady accumulation of real manufacturing know-how.

    By listening, sharing, and staying technically curious, we make sure the material you receive strengthens your process and your confidence. Every technical inquiry, every feedback loop, and every shared problem shapes our journey toward better chemistry—for us, for you, and for the projects that depend on our commitment.