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2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite

    • Product Name 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite
    • Alias CETI
    • Einecs 254-216-1
    • 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
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    Specifications

    HS Code

    317141

    Productname 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite
    Casnumber 102054-39-1
    Molecularformula C14H32N3OP
    Molecularweight 289.40
    Appearance Colorless to pale yellow liquid
    Purity Typically ≥98%
    Boilingpoint 132-134°C at 0.2 mmHg
    Density 0.94 g/cm³ (approximate)
    Solubility Soluble in organic solvents such as acetonitrile and dichloromethane
    Storagetemperature 2-8°C, under an inert atmosphere
    Synonyms Tetraisopropyl (2-cyanoethyl)phosphorodiamidite
    Refractiveindex 1.438-1.443

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

    Packing & Storage
    Packing The 10g 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite is packaged in a sealed amber glass bottle with tamper-evident cap.
    Shipping 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite is shipped in tightly sealed, inert containers under a dry nitrogen or argon atmosphere. The packaging prevents moisture and air exposure, as the chemical is highly sensitive to hydrolysis. It is handled as a hazardous material and shipped in compliance with relevant chemical transport regulations.
    Storage 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite should be stored under an inert atmosphere, such as argon or nitrogen, in a tightly sealed container. Keep it in a cool, dry place, protected from moisture and direct sunlight. Ideally, store at 2–8 °C (refrigerator). Avoid contact with oxidizing agents and acids, as the compound is moisture- and air-sensitive, and may degrade upon exposure.
    Application of 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite

    Applications of 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite in Industrial Manufacturing

    As an experienced manufacturer of specialty chemical intermediates, we have established reliable supply solutions for 2-cyanoethyl N,N,N',N'-tetraisopropylphosphorodiamidite in several high-value industrial segments. This phosphorodiamidite is well-recognized for its unique reactivity and purity critical in oligonucleotide synthesis and related downstream chemistries. The following sections describe real downstream applications, compliance standards, usage ratios, process points, and final product types.

    1. Automated Oligonucleotide Synthesis for Therapeutics

    Automated solid-phase oligonucleotide synthesizers across pharmaceutical and CDMO facilities require high-purity phosphorodiamidites as key monomer activators during nucleic acid elongation. The 2-cyanoethyl tetraisopropylamide structure supports precise phosphodiester formation and improved shelf stability, becoming indispensable in large-scale antisense, siRNA, and aptamer drug development. Regulatory authorities mandate traceability for reagents engaged in GMP active pharmaceutical ingredient processes, while end-users demand quantifiable consistency and contaminant control at every batch release.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • 21 CFR Part 210/211 US FDA cGMP
    • EMA Guideline on Manufacture of the Finished Dosage Form
    • Ph. Eur. 2.2.46 Chromatographic Separation Techniques (purity testing)

    Typical usage ratio

    • Applied at 0.95–1.05 molar equivalent per nucleotide coupling step
    • Ratio adjusted for sequence length and automated unit calibration
    • Reagent loading commonly validated in pilot and scale batches for lot-to-lot reproducibility
    • Excess held below 10% to minimize byproduct formation

    Downstream process integration

    • Charged into solid-phase synthesis reactors via automated pumps
    • Directly involved in the phosphoramidite coupling/synthesis cycle
    • Reacts in the presence of activators (tetrazole, ETT, etc.)
    • Residues removed during post-synthesis deprotection and purification

    Final product types

    • Oligonucleotide APIs for injectable formulations
    • Therapeutic siRNA and antisense drugs
    • Custom aptamer sequences for targeted delivery
    • Active intermediates for molecular diagnostics

    2. Custom DNA/RNA Synthesis for Genomics and Research

    Contract synthesis and in-house laboratories involved in genomics research utilize this reagent for controlled phosphoramidite chemistry in the scalable production of DNA and RNA strands. The tight control over side reactions, hydrolysis, and isomer formation directly correlates to assay quality, PCR fidelity, and sequence purity. Sequence customization, labeling, and incorporation of modified bases rely on monomers synthesized using this phosphorodiamidite, with clear requirements for research-use-only grade chemicals.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems for Laboratory Chemicals
    • USP General Chapter <1047> Genomic DNA Purity Standards (research reagents)
    • OECD Good Laboratory Practice (for traceability)
    • Local chemical handling and hazard communication regulations (OSHA, REACH)

    Typical usage ratio

    • Dosed at 1.0–1.2 molar equivalent per synthesis cycle, based on sequence design protocol
    • Adjustment based on oligo length, multi-label requirements, or specialty modifications
    • Batch-specific titration for high-throughput sequencing service providers
    • Reagent inventory optimized for overnight or continuous production

    Downstream process integration

    • Integrated into programmable DNA/RNA synthesizers using standard monomer inlets
    • Chemical introduction synchronized with automated reagent delivery software
    • Supports in-line monitoring for coupling efficiency and side reaction minimization
    • Spent reagent collected for compliant hazardous waste management

    Final product types

    • Synthesized DNA/RNA primers for PCR and qPCR
    • Gene fragments and long oligo pools for gene assembly
    • Labeled probes for fluorescence in situ hybridization (FISH)
    • Custom synthetic standards for sequencing controls

    3. Manufacture of Diagnostic Probes and Microarray Chips

    Producers of molecular diagnostics and microarray substrates employ 2-cyanoethyl N,N,N',N'-tetraisopropylphosphorodiamidite for the surface-coupled synthesis of capture probes and tagging oligonucleotides. On-chip synthesis workflows depend on reagent stability and rapid, even deposition. Manufacturing must accommodate batch identification, impurity profiling, and support ISO-regulated tracebacks for sensitive healthcare applications. Any change in reagent purity or formulation impacts hybridization efficiency in diagnostic testing.

    Industry compliance standards

    • ISO 13485:2016 Medical Devices – Quality Management Systems
    • IVDR (EU) 2017/746 Compliance for In-vitro Diagnostics
    • CLSI MM20 Genomic Applications and Oligonucleotide Quality
    • Lot release verification per EN ISO 11137-1 Sterilization (when applicable)

    Typical usage ratio

    • Usually 0.98–1.1 molar equivalent per surface-bound oligonucleotide position
    • Microarray producers may adjust within ±5% to compensate for microscopic variation
    • On-chip chemistry frequently demands tighter quality controls than solution-phase synthesis
    • Usage precisely weighed to guarantee probe uniformity

    Downstream process integration

    • Dispersed onto activated glass, silicon, or polymer microarray substrates
    • Reacts under photolithographic or inkjet-driven synthesis conditions (depending on chip design)
    • Post-synthesis deprotection and washing performed on or off-chip
    • Feeds directly into quality assured packaging for molecular diagnostics kits

    Final product types

    • DNA microarray diagnostic chips (cytogenetics, infectious disease)
    • Labeled capture probes for PCR and isothermal assays
    • Molecular barcode oligos for NGS sample indexing
    • Custom array platforms for transcriptome and biomarker profiling

    4. Synthesis of Modified Nucleic Acid Building Blocks

    Specialty chemical firms and biotechnology R&D centers use this reagent as a core phosphitylation agent when making custom-modified nucleotides, such as fluorescent, biotinylated, or reactive group-carrying monomers. The electron-withdrawing cyanoethyl group improves reactivity during the modification phase, while the isopropyl substituents assist with solubility and purification. Quality assessment for custom monomer production always considers residual base impurities, reaction byproducts, and batch documentation for regulated environments.

    Industry compliance standards

    • Synthetic chemistry operations follow ISO 9001 and customer-specific QA systems
    • Analytical testing under USP <621> Chromatography and <731> Loss on Drying for chemical identity
    • Product/process change management as per customer supply agreements
    • Documentation for REACH annex registration if exported to Europe

    Typical usage ratio

    • Usually provides a 1.1–1.3 molar excess relative to the functionalized nucleoside or base moiety
    • Ratio depends on reactivity of the base and bulk scale-up logistical factors
    • Reagent often purified in-situ for high-precision modifications
    • Excess removed by solvent extraction or chromatography

    Downstream process integration

    • Engaged in solution-phase reactions for nucleoside or base phosphitylation
    • Introduced after nucleoside functionalization, prior to final product crystallization
    • Reaction conditions optimized for each custom chemical structure
    • Monomers sent onwards to oligonucleotide or probe synthesis after QC

    Final product types

    • Modified phosphoramidite monomers (e.g., Cy3-, Cy5-labeled, biotinylated)
    • Specialty building blocks for FRET, structural studies, or enzyme assays
    • Non-natural base analogues for synthetic biology research
    • Supplier-credentialed nucleic acid derivatives for contract synthesis
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    Certification & Compliance
    More Introduction

    Introducing 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite: A Manufacturer’s Perspective

    From the Lab Bench to Global Synthesis: Our Story with 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite

    Chemical synthesis asks for precision. In our daily production runs, 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite—sometimes called “Tetraisopropylphosphorodiamidite” in short—stands out as a reliable phosphitylating reagent for DNA and RNA oligo manufacturing. Our teams on the factory floor and in the quality labs have watched the growth of demand for nucleic acid-based therapeutics and diagnostics with keen eyes. More than just a reagent, this compound forms the backbone of solid-phase oligonucleotide chemistry, and there’s no shortcut: the process calls for consistency, low impurity levels, and chemical stability that only fine-tuned manufacturing controls can deliver.

    Meeting the Needs of Oligonucleotide Synthesis

    Day after day, laboratories depend on phosphoramidite reagents to build precise DNA and RNA sequences. 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite allows for efficient coupling in both automated and manual phosphoramidite chemistry. We’re familiar with the problems that arise from low-purity or unstable intermediates—problems we have worked to eliminate over years of process refinement. Material shipped from our facility maintains tight control over isomeric purity, moisture content, and residual solvents, which directly improves efficiency in every coupling cycle.

    The reagent supports installation of the phosphite triester linkage with high yield, something every oligo synthesis lab values. For each lot, our team carries out strict HPLC and NMR checks. Experience has shown that insufficient removal of water or amines compromises synthesis. So every drum that leaves our site comes after a thorough moisture and impurity purge in our vacuum drying and distillation lines. Phosphoramidite reagents degrade quickly in air or if improperly sealed. We’ve invested in the right argon blanketing practices and supply chain protection to tackle these real-world challenges.

    Why We Focus So Closely on Specifications

    It’s tempting to look only at paper specifications when sourcing chemicals. Still, there’s a gap in real performance whenever shortcuts creep in. We’ve faced customer reports of line clogs and low coupling efficiencies when they tried lower-quality alternatives. Small differences in color, viscosity, or odor point toward hydrolysis or oxidation. That’s why we target colorless to pale yellow, clear liquid material—any deviation triggers an internal investigation. Real-time feedback from our end-users helps us tighten product uniformity.

    Water content consistently ranks at the top of discussion here. Our technicians have seen that even small increases in water—sometimes less than 0.05%—can slow down phosphitylation or lead to truncated oligos. Achieving Karl Fischer results below 0.02% has become standard. We monitor amine impurities using GC-MS because their presence can form byproducts that show up as ghost peaks during oligo synthesis. It’s not just statistics—each impurity peak takes hours of troubleshooting for our customers. We’ve narrowed batch variations by adjusting our distillation protocols, fine-tuning the temperature profile in our reactor trains, and improving raw material checks.

    Direct Manufacturing: Added Value Beyond Distribution

    As a primary manufacturer, our teams own every step—from sourcing phosphorus trichloride and isopropylamine to the final packaging under inert gas. It’s a long way from simply buying and selling. We control the batch records, the cleaning regimes, the solvent recycling, and the worker training. Years of hands-on practice have taught us which stainless-steel reactors to use and how fast to add the 2-cyanoethanol to reduce side reactions.

    There’s genuine difference between re-bottled or resold chemicals and those supported by a robust in-house process. We take customer complaints back to the plant manager’s desk and collaborate across synthesis, QA, and logistics to get to the root cause. Shipping under nitrogen, selecting proper fluoropolymer-lined containers, and holding stock in temperature-monitored storage matter to users who measure product shelf-life in weeks, not months.

    Product Differentiation: Comparing 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite to Other Phosphoramidites

    Not all phosphoramidites act the same, even though they share similar core structures. Tetraisopropylphosphorodiamidite brings special properties compared to the more common diethyl or diisopropyl analogues. Our regular interactions with oligonucleotide synthesis groups reveal that steric hindrance from isopropyl groups slows hydrolysis just enough to improve shelf stability, without negative impact on coupling speeds.

    Compounds with less hindered amine substituents, such as diethyl, sometimes show faster hydrolysis rates—leading to more strict storage and handling needs. Tetraisopropyl versions hold up better over longer storage, especially crucial for labs that don’t turn over inventory quickly. Based on user data, customers using our tetraisopropyl variant report higher average yields on longer DNA/RNA sequences by a few percentage points, reducing purification demand.

    Some alternative reagents might cost less to produce using recycled amines or different phosphorus sources, but we’ve found the batch-to-batch irreproducibility leads to much higher costs for the end user. Cleaning clogged synthesis columns, running extra mass spec and HPLC tests, and re-purchasing failed coupling agents all hit the bottom line harder than a higher up-front chemical price. Through hundreds of syntheses, ligation, and dealkylation steps, customers provide data on side reactions that we feed back into manufacturing improvements.

    The Importance of Controlled Packaging and Transport

    Few things frustrate an oligonucleotide chemist more than receiving a shipment with degraded or contaminated reagent. From our plant, packages leave with traceable lot numbers and full environmental logging. Our logistics team learned early on that even a few days stuck in direct sun or held at an uncontrolled dock can raise impurity levels.

    By investing in insulated shipping and temperature monitors, we help avoid the hot summer or freezing winter excursions that have ruined shipments for customers in less-prepared supply chains. Metal containers with PTFE linings keep moisture and oxygen out. We’ve responded to feedback from users who want easier re-sealing and better desiccant inclusion for repeated use. Our staff checks seals and overpacks so each container arrives in ready-to-use condition.

    Working with End Users to Solve Practical Lab Challenges

    Years of fielding technical calls have shown us the value of direct contact with bench chemists and production lines. Common challenges include plugging of synthesis columns, variable coupling efficiency, or color changes during storage. Listening to customers has led to several in-process adjustments: extra polishing on the final product, revised packaging formats for high-throughput labs, and even small-scale custom lots for process development work.

    Some research groups need a reagent that tolerates a slower coupling schedule, while others look for faster deprotection or minimal residual contamination in final oligos. Our technical support is trained to translate these needs back to the plant—if a customer’s sequencer develops ghost peaks or if dry-box handling proves difficult, these issues trigger internal improvement projects.

    Regulatory Requirements and Market Trends

    As interest in gene therapy, antisense oligonucleotides, mRNA vaccines, and aptamer development grows, worldwide regulation has increased. Customers ask us about REACH registration, controlled class shipment, import/export documentation, and trace element profiles for GMP environments. From our perspective, documentation quality is inseparable from product quality.

    We maintain long-term audit trails, stability studies, and change control logs for every material shipped. This has allowed us to work with customers under NDA for patented or confidential process development and scale-up runs. Our batch traceability extends through supplier documentation—we require our raw material vendors to certify every solvent, every lot of amine, and every drum of 2-cyanoethanol, and we check each in-house before use.

    Advances in Phosphoramidite Chemistry and Our Role

    Each year, improvements in automation, sequence length, and throughput force us to adapt. Earlier, oligonucleotide applications focused on short primers and probes. Today the market looks for long RNA, high-fidelity gene editing strands, or even library-scale combinatorial synthesis. These needs drive stricter control of trace impurities and greater flexibility in packaging—requests for kilogram-scale drums now come as often as demand for single-use vials.

    We collaborate with equipment manufacturers and academic groups to anticipate where oligo chemistry will head next. Feedback from users about synthesis cycle time, compatibility with new automated platforms, and integration with LNP and CRISPR delivery workflows help us calibrate product specifications. For example, the purity, density, and volatility profile of our tetraisopropyl product undergo constant benchmarking against published standards and in-house controls.

    Environmental and Worker Safety Commitments

    Manufacturing phosphorus compounds brings health and environmental risks. We enforce strict PPE, ventilation, and containment standards to protect our teams. Wastewater from cleaning and spent solvents goes through in-house treatment facilities to reduce organic and phosphate load before discharge. Regular third-party inspections help verify procedures meet current environmental rules.

    By maintaining full R&D and production in one site, we can act quickly—a quality excursion in manufacturing triggers batch segregation and remediation before a single drum leaves. Every safety incident, employee concern, or environmental complaint becomes a driver for internal process improvements. We focus both on compliance and on creating a workplace culture where staff feel empowered to raise safety concerns as soon as they arise.

    Lessons Learned Through Direct Production

    Our experience supplies valuable lessons. Small changes in feedstock purity or equipment temperature can lead to batch failures or minor degradations that only appear in final oligo yield data. By systematically recording every process parameter, and by linking customer technical support tickets directly to our manufacturing analytics, we close the loop between issue and solution much faster than could a trader or outsourced producer.

    Direct production means we never lose visibility—there’s no opacity on where a reagent came from or how it handles real-world use. Fast communication between our manufacturing, QA, and technical support groups ensures that problems don’t fester. Over time, this gives our customers greater confidence that every liter of 2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite truly matches what the project demands.

    Supporting Research, Scale-Up, and Commercial Oligonucleotide Production

    Chemistry is a hands-on business; reliability grows from understanding the real-life context in which a product gets used. We supply institutions running cutting-edge research in cancer diagnostics or infectious disease monitoring, but also help startups and multinational pharma establish robust large-scale synthesis lines. Each group approaches risk, cost, and schedule differently. Our approach: focus on delivering on-time shipments, minimal impurities, and responsive technical support to limit troubleshooting and downtime.

    As new requirements emerge—like higher throughput, more extensive sequence libraries, or tighter impurity limits—we continue adapting. This means frequent equipment upgrades, staff training, and close collaboration with analytic labs and equipment makers. Direct ties with users help us refine the product and anticipate tomorrow’s challenges rather than chasing after them.

    Conclusion: The Value Behind the Name

    2-Cyanoethyl N,N,N',N'-Tetraisopropylphosphorodiamidite plays a central role in oligonucleotide chemistry, and meeting these demands requires more than just technical knowledge. It calls for experience, a drive for quality at every step, and a willingness to listen and improve based on direct feedback from users. Having manufactured and shipped this compound for many years, we’ve built a relationship with the scientists who rely on it. This ongoing partnership helps us keep pushing the quality, shelf life, and usability forward in line with the evolving needs of the field.

    Every process tweak, packaging improvement, or specification update comes from experience and from user stories we hear. So, each bottle carries the lessons of a manufacturing floor committed to serving the real-world, practical needs of oligonucleotide chemists around the world.