4-Cresol

    • Product Name: 4-Cresol
    • Alias: p-Cresol
    • Einecs: 202-423-8
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    616305

    Cas Number 106-44-5
    Iupac Name 4-methylphenol
    Molecular Formula C7H8O
    Molar Mass 108.14 g/mol
    Appearance Colorless to pale yellow crystalline solid
    Melting Point 35–37 °C
    Boiling Point 201 °C
    Density 1.034 g/cm³
    Solubility In Water 2.4 g/L at 20 °C
    Flash Point 86 °C
    Odor Medicinal, phenolic

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

    Packing & Storage
    Packing The 4-Cresol is packaged in a 500g amber glass bottle with a tightly sealed cap and hazard labeling for laboratory use.
    Shipping 4-Cresol is shipped as a hazardous material and should be packed in tightly sealed containers, protected from light, heat, and incompatible substances. It must be labeled according to local and international regulations, such as UN 2076. Suitable packaging includes corrosion-resistant drums. Transport requires proper ventilation and adherence to all safety guidelines.
    Storage 4-Cresol should be stored in a cool, dry, and well-ventilated area away from sources of ignition, heat, and incompatible substances such as strong oxidizers and acids. The chemical should be kept in a tightly sealed container, clearly labeled, and protected from moisture and direct sunlight. Proper secondary containment and appropriate safety signage are recommended to prevent leaks and accidental exposure.
    Application of 4-Cresol

    Applications of 4-Cresol in Industrial Manufacturing

    As a direct manufacturer of high-purity 4-Cresol, we supply this crucial phenolic intermediate to support specialized production in multiple industrial sectors. Reliable downstream integration relies on precise formulation, strict regulatory adherence, and quality control throughout the value chain. The following sections highlight key industries and detailed practical information on how 4-Cresol is applied.

    1. Antiseptic and Disinfectant Formulations

    4-Cresol plays a critical role in manufacturing phenolic-based antiseptics and hospital-grade disinfectants. Its strong antimicrobial properties make it indispensable for formulating actives used in medical, institutional, and veterinary sanitation. Downstream manufacturers depend on its consistent purity to meet stringent biocidal regulations and deliver products that withstand real-world bactericidal testing.

    Industry compliance standards

    • EU Biocidal Products Regulation (BPR, Regulation (EU) 528/2012)
    • U.S. EPA Office of Pesticide Programs (OPP) Registration Requirements
    • EN 1040: Chemical disinfectants and antiseptics – Basic bactericidal activity
    • China GB 26369-2010: Hygienic standard for disinfectants

    Typical usage ratio

    • 2–7% by weight as the primary phenolic active; formula concentration is selected based on required disinfection efficacy and application site, with higher doses for industrial surface cleaners and lower for topical antiseptics.

    Downstream process integration

    • Manufacturers add 4-Cresol during the active ingredient preparation stage prior to final mixing and pH adjustment; post-blending, the mixture undergoes microbicidal performance validation, filtration, and filling.

    Final product types

    • Liquid antiseptics, disinfectant concentrates, veterinary surgical cleansers, preoperative skin preparations, institutional decontamination solutions.

    2. Agrochemical Intermediate for Herbicide Synthesis

    Agricultural chemical producers utilize 4-Cresol as an essential synthetic intermediate for manufacturing certain phenoxy herbicides. It enters the agrochemical value chain at the key condensation reaction stage, ultimately affecting both product purity and field efficacy. Strict monitoring of impurity profiles is essential for compliance with crop safety and environmental standards.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products (JMPS)
    • China NY/T 1974 Agrochemical Technical Material Standard
    • U.S. EPA Registration Requirements for Technical Active Ingredients
    • ISO 15913:2000 (Pesticides — Guidelines for specification)

    Typical usage ratio

    • 8–15% of batch mass (as a precursor) in the synthesis of MCPA and MCPB herbicides; actual ratio is optimized based on target active ingredient yield and minimization of by-products.

    Downstream process integration

    • 4-Cresol is charged to the reactor during the initial phenol alkylation, followed by etherification or carboxylation, with subsequent purification and crystallization prior to formulation of finished crop protection products.

    Final product types

    • MCPA technical concentrate, MCPB technical concentrate, formulated selective weed killers.

    3. Resin and Polymer Stabilizer Manufacturing

    Polymer chemical plants incorporate 4-Cresol for the synthesis of phenolic resin stabilizers and antioxidants, particularly for industrial adhesives and high-temperature plastics. Performance in these applications depends on accurate dosing and molecular purity, as downstream thermal and oxidative stability hinge on residue control from the raw material stage.

    Industry compliance standards

    • ISO 9001:2015 Quality Management in Resin Production
    • UL 94 Flammability Standard (for U.S.-marketed resins)
    • China GB/T 30778.2-2014: Phenolic resin technical requirements
    • EU REACH Regulation (EC) No 1907/2006 for chemical registration

    Typical usage ratio

    • 0.5–3% by weight as a stabilizer monomer in phenolic and epoxy resin batches; tuning the percentage depends on resin viscosity, end-use temperature range, and resistance requirements.

    Downstream process integration

    • Addition occurs during reactive blending with formaldehyde or analogous cross-linkers, prior to condensation and curing; residue is checked throughout QA sampling to uphold polymer specifications.

    Final product types

    • Industrial adhesive binders, circuit board laminate resins, brake lining materials, engineering thermoplastics with enhanced oxidation resistance.

    4. Pharmaceutical Intermediate for API Synthesis

    Pharma-grade 4-Cresol sees widespread use as a critical intermediate during the multi-step synthesis of active pharmaceutical ingredients such as certain anesthetics and antiseptic actives. Regulatory scrutiny covers not only the purity of the input but also full traceability and residual solvent levels in the GMP environment.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice Guide (APIs)
    • U.S. Pharmacopeia (USP) Monographs
    • European Pharmacopoeia (Ph. Eur.) quality specifications
    • China Pharmacopoeia (ChP) standards for intermediates

    Typical usage ratio

    • Varies between 0.8–5 molar equivalents, depending on the synthetic route; optimized for each specific API with careful control of excess reagent to minimize purification steps.

    Downstream process integration

    • 4-Cresol enters at targeted oxidation, alkylation, or halogenation steps; manufacturers monitor conversion and impurity carryover, with downstream isolation and chromatography stages to achieve compendial purity.

    Final product types

    • Paracetamol/acetaminophen API, p-hydroxybenzyl alcohol derivatives, pharmaceutical antiseptics.

    5. Dye and Pigment Intermediates Production

    Dye and pigment synthesis facilities incorporate 4-Cresol during the early diazotization and coupling reactions, supporting high-color-strength products for the textile and plastics sectors. Regulatory focus lies both in trace impurity control and meeting migration standards for end-use consumer goods.

    Industry compliance standards

    • Oeko-Tex® Standard 100 for textiles
    • EU Regulation (EC) No 1907/2006 (REACH) for pigments and dyes
    • ISO 105-A02:2019 for textile fastness
    • China GB/T 22899: Synthetic dyes quality standard

    Typical usage ratio

    • 1–6% by weight of the coupling or diazotization step input; dosage is adjusted to modulate purity and color intensity for specific dye chemistry.

    Downstream process integration

    • 4-Cresol is introduced during the color base formation, proceeding to coupling under controlled temperature and pH to manage shade and yield, with subsequent filtration and salt formation for pigment isolation.

    Final product types

    • Azo and triphenylmethane dyes, high-performance pigment dispersions, textile-printing colorants, plastic color masterbatches.

    6. Synthesis of Fragrance and Flavor Ingredients

    Manufacturers of specialty aroma chemicals employ 4-Cresol as a fundamental building block in the synthesis of natural and artificial fragrance compounds, especially for smoky, leather, and medicinal notes. Rigid adherence to food and cosmetic industry standards ensures the traceability and sensory consistency demanded by major fragrance houses.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards
    • U.S. Food Chemicals Codex (FCC) for flavor raw materials
    • EU Regulation (EC) No 1334/2008 (flavoring substances)
    • China GB 2760 Food Additive Standards

    Typical usage ratio

    • 0.1–1.5% by weight in aroma chemical blending or as a reaction precursor; actual ratio depends on downstream concentration restrictions and the target olfactory profile.

    Downstream process integration

    • Enters at the methylation or esterification step in aroma ingredient synthesis, immediately followed by fractional distillation and specification testing for sensory approval.

    Final product types

    • Synthetic guaiacol, creosol, and other fragrance bases, food-grade smoky and clove flavorings, perfumery components for aromatic compositions.

    Free Quote

    Competitive 4-Cresol prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    4-Cresol: Production Quality and Application from an Experienced Manufacturer

    Understanding the Roots of 4-Cresol Production

    Over decades spent handling aromatic compounds, the unique challenges and practical aspects of 4-Cresol production often shape our daily routines. As direct producers, we see raw materials at every stage—from selection and reaction to purification and packing—so it’s clear how each choice affects what end users actually receive. The product’s performance reflects our attention to detail, right down to the subtle distinctions that set 4-Cresol apart among cresol isomers.

    Our experience tells us that 4-Cresol, or para-cresol, forms the cornerstone for many downstream syntheses and formulations. Because its chemical structure features a methyl group at the para position of phenol, 4-Cresol brings a specific reactivity profile well-suited for targeted chemical reactions. We concentrate on keeping purity levels high—often striving for 99% or better—since trace impurities can spoil delicate catalysis steps or prompt unwanted byproducts.

    Its physical nature also matters. 4-Cresol appears as colorless to pale yellow crystals at room temperature, sometimes with a faint, phenolic odor that reminds us this is an authentic, freshly produced product. Over time, a batch exposed to air or incorrectly stored might darken, which signals polymerization or contamination. Such details point not only to purity but to the handling rigor prior to delivery.

    From Feedstocks to Finished Product: What Guides Precise Manufacturing?

    Our expertise in high-temperature alkylation and thoughtful distillation forms the foundation of every release. Securing cresol isomer mixtures from reputable upstream partners provides control at step one. During separation and purification, we adjust fractionation to maximize 4-Cresol throughput while minimizing phenol and ortho- or meta-cresol carryover, which can wreck downstream reactions in resin or antioxidant synthesis.

    Maintaining tight quality parameters allows us to guarantee melting points, moisture, and acidity well within established industry benchmarks. After extensive experience, we’ve found that sample analysis—using gas chromatography, mass spectrometry, and precise titration—builds real trust and traceability for our customers. Each lot reflects lessons learned from previous runs, with modifications made as needed when new applications surface.

    Technical Specifications Backed by Practice

    Most end users request a crystalline product with consistent melting points around 36–37 °C and minimal water content. Such consistency saves time for formulators in plant labs and avoids disputes over material acceptance. Any residual phenol or ortho-cresol adds unnecessary noise to chemical processes, so our focus on multi-step distillation, rigorous filtration, and small-batch sample analysis proves critical.

    In our experience, customers operating on an industrial scale value shipment size flexibility, stable packaging, clear labeling, and up-to-date batch documentation. Packaging has evolved: steel drums with inert lining, tamper-evident seals, and ventilated closures hold up far better in transit, avoiding oxidation or cross-contamination. For those needing special packaging or delivery schedules, we draw on a deep logistical network, built over years of solving real-world shipping problems.

    Why End Users Rely on 4-Cresol’s Distinct Properties

    Within chemical manufacturing, synthetic precision always starts with the quality and consistency of inputs. 4-Cresol supports a broad range of uses, spanning from specialty resins, antioxidants, and herbicides to pharmaceutical intermediates, perfumes, and disinfectants. Manufacturers often choose 4-Cresol for its balanced volatility, manageable toxicity profile, and reliable methyl group placement—all factors that let it slip into precise spots in molecular frameworks.

    Paints, adhesives, and resins depend on 4-Cresol as a building block that lends thermal stability and weather resistance. The methyl group at the para position steers reactions in directions not possible with ortho- or meta-cresol, which makes reaction synthesis more predictable. In antiseptics, the right phenolic tone grants both potency and resistance to spoilage, especially where shelf life counts.

    Meeting Evolving Regulatory Expectations With Confidence

    As global standards evolve, we must review documentation and process control steps with every major batch. Working as direct producers allows us to react quickly to new purity regulations, labeling rules, and environmental restrictions. Over the years, we have overhauled the way waste streams are monitored and reported, reducing off-spec product and supporting our partners in passing regulatory audits.

    Employees handling 4-Cresol require special training. Familiarity with safety protocols shapes our safety culture—not just meeting minimums, but understanding how exposure levels, spill responses, and engineering controls keep the workflow secure day after day. This experience feeds back into improvements at every stage, so by the time the product reaches an end user, it reflects a commitment to both technical and ethical best practices.

    Comparing 4-Cresol With Other Cresol Isomers

    Having worked with the full range of cresol isomers, we have observed that the chemical differences translate into practical process outcomes. 4-Cresol, with its para-substitution, separates more cleanly during distillation and resists side reactions that often plague ortho- or meta-cresol fractions. When aiming for surface-active agents or resins that must withstand heat and light cycles, para-cresol’s structure shines. The same purity targets in ortho- or meta-cresol require more processing and still expose users to increased uncertainty in downstream reaction profiles.

    The decision on which cresol isomer to use often depends on specific application requirements. For instance, ortho-cresol serves better in certain dye syntheses where regioselectivity benefits from its functional group placement. Meta-cresol, meanwhile, finds niches in high-melting intermediates. Through trial, error, and project feedback, we have learned to advise users on what subtle differences will affect their process results, beyond what a textbook might list.

    Tackling Production and Supply Chain Bottlenecks

    Chemical manufacturing, especially for tight-spec aromatic intermediates, brings the risk of bottlenecks at several stages. Raw material quality, plant downtime, or unexpected shipment delays can throw off the best-laid plans. Our approach draws both on technical plant upgrades—such as automated distillation control—and long-term relationships with logistics partners in order to avoid interruption.

    Over the years, unpredictable swings in environmental regulations have affected precursor import availability. Quick communication with authorities, pre-qualified alternative supply lines, and flexible inventory management all play important roles. As competitors face raw material shortages, direct producers like us who maintain diverse supplier relationships and in-house troubleshooting capabilities are better positioned to guarantee steady flow.

    Building Quality Assurance Through Direct Involvement

    Direct supervision of plant operations sets professional manufacturers apart from mere resellers. Each new batch brings subtle shifts in yield, color, or odor that seasoned eyes recognize early. Routine in-process checks, batch retention samples, and customer feedback loops ensure ongoing improvement. We’ve learned that problems caught on the plant floor often never make it as far as the customer—a key difference between production and distribution.

    For example, a spike in water content from a new shipment of feedstock signals a necessary process tweak, not an abstract quality-control metric. Personal involvement in sample testing and real-time troubleshooting ensures rapid intervention, protecting customers from wasted time or ruined downstream synthesis. These lessons reinforce why hands-on manufacturing knowledge supports quality assurance in the chemicals industry.

    Addressing Environmental and Worker Safety Concerns

    A manufacturer’s duties extend far beyond product metrics. 4-Cresol carries health and environmental risks that must be managed by grounded experience, not just paperwork. Our investment in closed-system handling, dedicated safety teams, and strict exhaust air scrubbing safeguards the health of both workers and surrounding communities. Years ago, regulatory compliance alone would drive plant upgrades, but now, broader environmental responsibility motivates improvements to wastewater treatment and waste minimization efforts.

    Routine external audits, investment in containment infrastructure, and proactive risk assessment pave the way for trouble-free operations. We have noticed a marked improvement in worker engagement and retention since prioritizing concrete safety improvements over purely reactive measures. Beyond compliance, a safe, clean workplace translates directly into smoother operations and fewer production interruptions.

    Collaborating With Partners for Application Innovation

    Long-term customers bring new challenges—novel polymer blends, specialty pharmaceuticals, and emerging disinfectant technologies call for input grounded in what actually works. We often join development projects right from the pilot plant phase, fine-tuning product grades or impurity profiles to suit downstream applications that could never tolerate variability. These collaborative efforts drive us to keep improving purification approaches and process consistency.

    By sharing technical bulletins, root-cause case studies, and tailored advice, we foster trust and knowledge transfer. It is not unusual for process data from a single innovation project to inspire improvements across our entire product line. Other times, feedback on packaging or transit conditions leads us to trial new protective liners or stronger drums. Such iterative improvements set direct producers apart from traders who seldom receive, or act upon, such feedback.

    How Experience Shapes Manufacturing of 4-Cresol

    An experienced manufacturer becomes fluent in the language of raw material behavior, reaction control, impurity identification, and safe product delivery. Years spent balancing output, safety, and customer demand sharpen the ability to adjust to new regulations and application needs. This proven flexibility ensures that production schedules stay on track and that customers receive the particular grade and form they expect, shipment after shipment.

    Should a problem arise—a suspected off-odor, subtle color shift, or documentation inconsistency—the internal structure of hands-on manufacturing allows swift root-cause analysis. We can trace problems back to individual batches or process variables, intervening well before product leaves the facility. Many users underestimate the critical importance of such direct control in the specialty chemicals sector, but every successful project serves as validation of this approach.

    Supporting User Success Beyond Delivery

    Our involvement does not end once the batch ships out. Helping customers solve solubility issues, navigate process upsets, or troubleshoot batch-to-batch differences remains part of our daily routine. Some end users require technical workshops or best-practice sharing on 4-Cresol handling, especially when scaling up production. Experience on the producer side means we anticipate common hurdles and help customers address them.

    In some cases, collaborating on analytical method updates reveals unexpected benefits for both parties—tighter detection limits for trace impurities and faster batch approvals help everyone. Open channels between process engineers, laboratory analysts, and customer R&D teams encourage honest feedback, which we rely on to set goals for future process upgrades or plant expansions.

    Moving Forward: Anticipating Industry Trends and Needs

    The specialty chemicals field continues to grow more demanding each year. End users expect both high standards and accountability from their suppliers. Our long-running commitment to reliable 4-Cresol production, stable supply, and clear technical guidance keeps us connected to these evolving needs. Building in-house expertise around green chemistry, safer operations, and tailored downstream support ensures we can keep pace with these expectations.

    Changes on the horizon—such as stricter regulatory risk assessments, greater demand for circular economy compatibility, or increasing quality documentation—push us to keep investing in our people and technology. Drawing on practical know-how earned across years helps guide us through decisions that affect end users most, whether through batch upgrades, new logistics partners, or investments in new purification approaches.

    Why Trust the Manufacturer's Perspective?

    End users ultimately rely not on marketing language but on performance, responsiveness, and reliability. The real-world challenges of processing, packing, and dispatching pure 4-Cresol mean only firsthand expertise delivers the consistency that supports downstream innovation. As manufacturing specialists, we invite ongoing dialogue and feedback, knowing that transparency and real partnership remain the strongest foundation for lasting customer success.

    For those seeking a stable, predictable input into advanced chemical processes, a partner who shapes the product from the ground up—who understands, adapts, and innovates based on actual plant and customer feedback—makes all the difference. Experience, not just scale, ensures that each drum, bag, or bulk delivery of 4-Cresol matches not only specification sheets but also the true demands of modern chemical manufacturing.

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