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Carboxymethoxylamine Hemihydrochloride

    • Product Name Carboxymethoxylamine Hemihydrochloride
    • Alias CMO
    • Einecs 249-412-3
    • 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

    614223

    Productname Carboxymethoxylamine Hemihydrochloride
    Casnumber 835-31-4
    Molecularformula C2H6ClNO2
    Molecularweight 111.53 g/mol
    Appearance White to off-white crystalline powder
    Meltingpoint 151-153 °C (decomposition)
    Solubility Soluble in water
    Purity Typically ≥98%
    Storageconditions Store at 2-8°C, tightly closed
    Synonyms O-(Carboxymethyl)hydroxylamine hemihydrochloride
    Ecnumber 212-521-3
    Phvalue Approximately 5.5 (1% solution in water)
    Boilingpoint Decomposes before boiling
    Hscode 29242190

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

    Packing & Storage
    Packing Carboxymethoxylamine Hemihydrochloride is supplied in a 25g amber glass bottle with a secure screw cap and labeled for safety.
    Shipping Carboxymethoxylamine Hemihydrochloride is shipped in tightly sealed containers to protect from moisture and air. It is transported as a non-hazardous chemical under ambient conditions, following standard chemical shipping guidelines. Ensure packaging is secure to avoid spills, and include appropriate labeling and documentation in compliance with regulatory requirements.
    Storage Carboxymethoxylamine Hemihydrochloride should be stored in a tightly sealed container, protected from moisture and light. Keep it in a cool, dry, and well-ventilated area, preferably at room temperature (15–25°C). Avoid exposure to incompatible substances, such as strong acids or bases. Label storage containers clearly, and handle under appropriate safety conditions to prevent contamination and degradation.
    Application of Carboxymethoxylamine Hemihydrochloride

    Applications of Carboxymethoxylamine Hemihydrochloride in Industrial Manufacturing

    Carboxymethoxylamine hemihydrochloride serves as a critical intermediate for several industrial sectors where controlled oxime derivative formation and aldehyde protection are necessary. As a direct manufacturer, we supply this raw material primarily for advanced synthesis processes across pharmaceuticals, agrochemicals, analytical chemistry, and fine chemical manufacturing.

    1. Pharmaceutical Active Ingredient Synthesis

    In the pharmaceutical industry, many complex small molecule drugs require oxime intermediates to protect carbonyl groups during multi-step synthesis. This raw material delivers controlled reactivity for aldehyde and ketone protection, especially during coupling, condensation, or reduction reactions. In cephalosporin and certain anti-infective API lines, this approach is an essential step to maintain molecule integrity throughout further transformation or purification stages.

    Industry compliance standards

    • ICH Q7 (Good Manufacturing Practice for APIs)
    • USP/NF Monograph relevant to synthesized API
    • 21 CFR Part 210/211 (FDA cGMP regulations)
    • EU EudraLex Volume 4 GMP guidelines

    Typical usage ratio

    • 1.05:1 to 1.1:1 molar equivalent relative to aldehyde or ketone in the reaction batch
    • Adjust ratio based on substrate reactive site quantity and desired conversion rate

    Downstream process integration

    • Added after substrate dissolution and base neutralization step
    • Oxime protection step directly before subsequent reduction, alkylation, or acylation reactions
    • Removed by mild acid hydrolysis before final purification

    Final product types

    • Antibiotic APIs (e.g. cephalosporin derivatives)
    • Anti-inflammatory agents
    • Central nervous system medications
    • Advanced pharmaceutical intermediates

    2. Agrochemical Intermediate Formation

    Major agrochemical manufacturers utilize this reagent for key steps in synthesizing pesticides and herbicides that require selective oxime ligand formation. Controlled addition prevents overreaction and avoids unwanted by-products during the route to oxime esters or amidoximes, which serve as precursors to active ingredients such as sulfonylurea or dinitroaniline agents.

    Industry compliance standards

    • FAO/WHO Specifications for the Quality Control of Pesticides
    • ISO 9001:2015 for agrochemical process management
    • EU Regulation (EC) No 1107/2009 on Plant Protection Products
    • China GB standard for pesticide intermediates

    Typical usage ratio

    • 1:1 to 1.2:1 molar ratio versus substrate (usually aldehyde functionalized aryl compounds)
    • Higher ratio used in cases of incomplete conversion due to substrate sterics

    Downstream process integration

    • Mix with aryl aldehyde compounds after initial substrate preparation
    • Oximation step before formation of hydrazones or amidoximes
    • Intermediate directly purified before further derivatization into actives

    Final product types

    • Sulfonylurea herbicides
    • Dinitroaniline herbicide intermediates
    • Phenoxyacetic acid derivative insecticides
    • Plant growth regulator precursors

    3. Custom Synthesis in Analytical Chemistry

    Analytical laboratories and reference standard producers incorporate this oxime-former during derivatization of aldehydes and ketones for GC and LC detection. It enables quantification of carbonyl-containing contaminants or metabolites by improving analyte stability, reducing decomposition, and enhancing detector response for accurate trace-level analysis of complex environmental, biological, or industrial samples.

    Industry compliance standards

    • ISO/IEC 17025:2017 for analytical laboratory operations
    • GLP (Good Laboratory Practice) as per OECD Principles
    • EPA Method 556 for carbonyl compound analysis
    • Pharmacopeia guidelines for reference standard traceability

    Typical usage ratio

    • Usually 1:1 stoichiometry with carbonyl analyte in sample extract
    • Excess up to 1.2:1 if analyte is highly sensitive or low in abundance

    Downstream process integration

    • Mix with sample extract after initial purification
    • Derivatization occurs prior to injection into gas or liquid chromatograph
    • Resulting oxime derivatives used for calibration and quantitation

    Final product types

    • Reference oxime derivatives for regulatory residue analysis
    • Certified analytical standards
    • Trace-level quantitation products for industrial hygiene
    • Sample preparation kits for VOCs and carbonyl testing

    4. Fine Chemical Synthesis for Specialty Intermediates

    Producers of electronic materials, colorants, and modified aromatics use this substance to prepare functionalized oximes for further transformation into specialty amines, nitriles, or ligands. Controlled protection of carbonyl groups ensures high purity and prevents side reactions during electrophilic aromatic substitution or polymer precursor synthesis, essential in high-specification fine chemicals.

    Industry compliance standards

    • ISO 9001:2015 for fine chemical manufacturing
    • REACH Regulation (EC) No 1907/2006 registration and SVHC controls
    • QC protocols as required by electronic and colorant industries
    • Customer-specific quality agreements for intermediates

    Typical usage ratio

    • 1.0:1 to 1.15:1 molar ratio relative to carbonyl-containing starting material
    • Ratio depends on conversion efficiency and purity requirements

    Downstream process integration

    • Charged into reactor following substrate activation or acid scavenging
    • Oxime formation step followed by isolation prior to reduction or rearrangement
    • Integrated with continuous-flow or batch production schemes

    Final product types

    • Aromatic amine intermediates for dyes and pigments
    • Nitrile compounds for electronic materials
    • Bipyridine and phenanthroline ligand precursors
    • Colorant and specialty resin building blocks
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    Certification & Compliance
    More Introduction

    Unlocking the Real Value of Carboxymethoxylamine Hemihydrochloride in Modern Chemistry

    The Story Behind Carboxymethoxylamine Hemihydrochloride

    Every molecule we manufacture comes loaded with years of lessons, feedback, and research from real labs facing real project deadlines. Carboxymethoxylamine Hemihydrochloride (CMO·HCl) doesn’t arrive by chance. Our experience on the production floor and in the quality control lab has taught us how valuable this reagent remains for synthetic chemists facing complex protection and derivatization challenges. Sometimes, teams in pharmaceuticals or biotech look for compounds that check boxes on a spreadsheet. Our work focuses on those who look beyond checklists and need solutions that work, consistently, with high purity.

    Getting Technical: Advantages Born from Direct Feedback

    We manufacture CMO·HCl to the specifications requested by process developers. The majority of chemists working with sensitive aldehydes respect this compound for its performance as an oxime-forming reagent. The specific model we produce comes in a fine, free-flowing white crystalline powder. Quality starts with the raw material controls and continues with every quality test, from loss on drying to HPLC purity. We target a typical purity specification of over 98% by HPLC, with moisture content kept low because water impacts downstream yields.

    In our own formulation work, sloppy control of particle size, residual solvent, or trace metals quickly derails projects. We never take a shortcut with washing or crystallization steps just to hit a number on a cert. Each batch undergoes full characterization. Missed specs go back for remediation, not into the drum awaiting shipment. Chemists in the field rely on predictability, not surprises, so we stick with what works—and we publish those results freely.

    What Sets It Apart From the Alternatives

    Having handled alternatives like O-methylhydroxylamine hydrochloride and related reagents, our process teams regularly compare their chemical behavior and performance. Carboxymethoxylamine Hemihydrochloride, by design, integrates the carboxymethoxy group, delivering selectivity you can’t get from unsubstituted alkoxyamines alone. Our experience has shown that this substitution makes a true difference where side reactions threaten valuable starting materials.

    Ampoule after ampoule, we’ve measured side products and byproducts across dozens of routes. CMO·HCl’s structure promotes cleaner formation of oximes, particularly with aromatic and unsaturated aldehydes or ketones. That’s one reason process chemists return to it even after trialing less expensive alternatives. During scale-up for pharma intermediates, cutting down on polish and re-work time delivers a real cost benefit, even if the raw material costs slightly more.

    Transparency on Handling and Stability

    Anyone who has left a batch of moisture-sensitive reagent too long on the benchtop knows the pain of ruined material. Our CMO·HCl arrives factory-sealed in double-layer packaging and includes a full Certificate of Analysis detailing key contaminants, melting point range, and moisture. In-use stability represents more than words on a label; we have held some of our inventories for over 12 months under controlled storage with negligible degradation, and we share this data openly because customers have demanded it during supplier audits.

    Our plant runs tight control over environmental conditions during drying and packing. In regions of high ambient humidity, we provide additional storage guidance based on direct field experience in both tropical and temperate climates. We rarely see drop-off in performance so long as customers follow recommended storage instructions, but we still monitor every batch’s performance in the field with periodic check-ins. Feedback guides our own shelf-life declarations, which are always based on real data, not marketing goals.

    Usage in Real Synthesis Projects

    Though CMO·HCl ends up with many labels in the market, our customers often return for direct technical engagement. Many are moving complex synthetic routes forward or looking for trace-analytical consistency in the final product. We work directly with development chemists inside pharmaceutical, agricultural, and specialty chemistry divisions whose synthesis uses this material in oxime formation for intermediate derivatization or analytical tagging.

    A process team working on a novel cephalosporin, for example, needed a reliable method to mask an aldehyde group without scrambling sensitive protecting groups elsewhere on the molecule. They learned through hard experience that alternative O-substituted hydroxylamines brought along more byproducts, wasting effort on purification and chromatography. By switching to our CMO·HCl, their overall purification time dropped by several days per batch, with notable improvements in reproducibility. That type of case study happens more often than most would suspect.

    Technical Differences and Analytical Data

    Technical differentiation always brings up questions about trace contaminants and residual salts. We have built a QC program that looks for more than just purity by area. Residual solvents fall under strict per-batch auditing, since solvents from the synthesis stage can carry over if not removed diligently. Counterion purity matters, especially with hydrochloride salts—unreacted acids or other cations can compromise yield during the crucial oxime formation step. Every batch gets tested for trace heavy metals and halide balance.

    By continually reviewing our process data, we avoid the pitfalls of shortcut-driven manufacturing. In the wrong hands, inconsistent particle size or excessive moisture can cause batch-to-batch variability that frustrates analytical and process groups. We make no secret of our process improvements and gladly invite scrutiny from customers’ technical teams. Over the last two years, we’ve moved to an upgraded crystallization and washing protocol, delivering tighter particle size distributions and lower extractables. We see immediate benefits for customers doing method development on HPLC or GC systems, since baseline drift and tailing reduce with cleaner inputs.

    Comparing Cost and Value: Beyond the Price Tag

    Many chemists have confronted the reality that lower up-front reagent costs can balloon into higher project expenses. Cleaning up side reactions, running extra purification, double-checking analytical results—these often trace back to small shifts in reagent quality. As a manufacturer, we have invested in improved drying and packing, real-time batch tracking, and test result transparency. ‘Cost’ means more than invoice totals. Our CMO·HCl finds its way into customers’ pilot programs not because it sits cheapest on a price list but because it saves days of time and avoids avoidable headaches.

    Comparisons with alternative hydroxylamine reagents reinforce this lesson. Even after customers have trialed O-methylhydroxylamine or unsubstituted salts, some synthesis challenges simply demand the extra selectivity and cleaner reaction profile afforded by carboxymethoxylamine derivatives. Time and again, project managers circle back for these performance gains. In a world where time-to-market and batch reproducibility matter, no one enjoys spending late nights troubleshooting unexplained side reactions.

    Listening to Industry and Academic Partners

    We don’t develop compounds in a vacuum or rely solely on internal results. Over the past decade, collaborative work with academic groups—particularly those focused on metabolomics or advanced probe synthesis—has shaped how we make and test this product. Rigorous round-robins and ring trials between companies have drilled home which technical attributes affect synthetic success: solubility profiles in polar and non-polar solvents, heat stability, and clean conversion to oximes.

    Feedback from university groups challenged us to lower trace amine and formaldehyde content even further, pushing us to invest more in process control and analytical precision. If a change in process doesn’t survive scrutiny at this level, we don’t keep it. This ongoing dialog delivers both product improvements and real relationships, since peer review and shared data put marketing claims under the microscope.

    Supporting Scale-Up and Pilot Plant Demands

    Process chemistry rarely stands still. Those moving from test-tube scale to multi-kilogram reactor batches need more than technical data—they require real engagement about what consistent supply looks like. We have invested in scalable production lines with batch sizes ranging from hundreds of grams up to tens of kilograms, ensuring the same batch-to-batch repeatability demanded by regulatory agencies and project leads. Our technical team supports both large and small customers, tracking raw material sources and lots through the entire chain.

    Through regular review meetings with our industrial clients, we update production schedules and shipping standards based on customer feedback, not hypothetical demand. Seasonal needs, new regulatory filings, and shifts in downstream supply chains feed directly into our planning cycles. We understand that missing a single delivery can stall an entire production campaign, so our input on product planning and inventory management runs as deep as our synthetic knowledge.

    Regulatory and Documentation Transparency

    Full transparency on raw material sources, batch records, and test protocols matters when customer submissions go before regulatory agencies. For years, our team has provided full documentation packages, including Certificates of Analysis, method development support, and sample batch chromatograms. We’ve seen the time-savings from sharing impurity profiles and residual solvent data, since regulatory due diligence always runs smoother with upfront honesty.

    Audits from global pharmaceutical and specialty chemical companies challenge us to stay ready for process tracking on a lot-by-lot basis. Maintaining this level of preparedness requires constant vigilance and an honest feedback loop both internally and with our collaborators. Any sign of an issue gets addressed at the root, immediately, with all corrective action recorded and shared. This process ensures uninterrupted production and continued trust from our industrial and research partners.

    Evolving Alongside Customer Needs

    Process requirements never stop changing, and neither does our QC approach or production methodology. Customer requests often highlight gaps we didn’t know existed, whether it’s a new analytical standard, shifting purity requirements, or updated regulatory compliance. Each batch of CMO·HCl incorporates feedback and analytical improvements. We monitor both trends in demand and emerging regulatory guidance worldwide—whether it comes from pharma regulations in Europe or advancing analytical limits demanded by food chemistry teams.

    Real-world problems don’t yield to templated solutions. We deal directly with process engineers, development chemists, sourcing teams, and sometimes bench scientists who aren’t happy until their full workflow delivers clean data and repeatable product. Staying engaged with the actual users motivates iterative improvement and open reporting, rather than resting on standard procedure.

    Practical Tips for Storage, Use, and Problem-Solving

    From the factory floor to the final user, we recommend keeping CMO·HCl sealed in its original packaging until ready for use. Even a little atmospheric moisture can impact handling. After each use, reseal containers tightly and store in cool, dry conditions away from light. Many customers split shipments into working and archive portions, minimizing degradation and ensuring consistent performance across longer projects.

    If unexpected results show up during synthesis, reach out directly. We maintain an active technical support line—run by the actual manufacturing and QC teams, not an anonymous help desk. Timely feedback allows us to track potential issues and offer rapid replacements, second opinions on analytics, or advice on alternate reaction conditions. Our plant stands ready to ship both standard and custom batch sizes.

    Investing in Sustainable and Safe Production

    The chemical industry faces stronger environmental and safety demands every year. At our manufacturing site, we’ve made long-term investments in waste minimization, energy efficiency, and staff safety programs. Process solvent recovery and water management programs cut down overhead and shrink environmental footprint. By using monitored closed systems, we keep both staff and environment protected, and these savings translate directly into both lower operating costs and more consistent batches.

    Incorporating sustainable practices doesn’t just make sense for the bottom line. Customers increasingly inspect suppliers for environmental ratings and documented safety records. Over the last five years, audits from major multinationals and smaller biotechs alike have driven us to document every aspect of safety, waste handling, and air quality management. Our plant routinely shares this data with customers upon request.

    Continuous Improvement, Data-Driven Results, and Accountability

    Data sharing runs through our entire organization. Every technical meeting draws on the latest batch results, customer survey insights, and field complaints. Minor process hiccups yield new lessons, whether it’s a temperature excursion in the dryer or a packaging flaw noticed during shipping. Quarterly reviews with large customers help us anticipate new needs and avoid repeating mistakes. Progress reports keep our own organization honest and informed.

    Investing in process analytics, upgraded equipment, and real-time monitoring technology improves every aspect of product consistency and customer satisfaction. We never claim perfection, but our willingness to invite transparent review and share raw data with users keeps project timelines on schedule. Long-term partnerships result not from marketing promises but by solving the actual headaches encountered by working chemists, one batch at a time.

    The Bottom Line: Value Shaped by Real-World Practice

    Carboxymethoxylamine Hemihydrochloride represents more than a commodity chemical for our company. Our hands-on involvement—from raw material sourcing through delivery—means every drum, jar, or ampoule leaves the plant meeting our own internal benchmarks and those demanding third-party reviews. Differences between this reagent and competitors’ versions emerge most clearly during real-world processes, not just in side-by-side paperwork comparisons.

    New demands, broader applications, and a relentless flow of feedback from both industrial and academic customers keep us on our toes. We improve specifications, review analytical methods, and adapt packaging every year, all to minimize headaches for the folks who depend on us. This approach has built steady trust and turned what could be “just another chemical” into a reliable workhorse for demanding synthesis work. Our path forward will continue to prioritize openness, improvement, and hands-on engagement with each user’s evolving needs.