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Trimethyl Phosphite CAS 121-45-9

Synonyms: Trimethoxyphosphine; Methyl phosphite; Phosphorous acid, trimethyl ester; P(OMe)3; Trimethyl ester of phosphorous acid; TMP; Trimethoxyphosphane

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of Trimethyl Phosphite in China and also one of the manufacturers of this product.

We can provide customized requirements in terms of product purity, packaging specifications, and other aspects.

Please contact us to obtain the latest product information.

Product Details

Get the Best Trimethyl Phosphite (CAS 121-45-9) for Your Process – From Aure Chemical

Aure Chemical is a premier global supplier of high-quality Trimethyl Phosphite (P(OCH₃)₃), commonly known as Trimethoxyphosphine or abbreviated as TMP. Identified by its CAS number 121-45-9, this organophosphorus compound is a clear, colorless liquid with a characteristic pungent odor. Trimethyl Phosphite is a highly versatile and reactive chemical, widely recognized for its excellent properties as a reducing agent, a crucial ligand in coordination chemistry, and an indispensable intermediate in various synthetic pathways. It plays a pivotal role in the production of a wide range of phosphonates, specialty chemicals, and polymer additives. Aure Chemical's unwavering commitment to excellence ensures that our Trimethyl Phosphite meets the stringent purity and performance requirements for your most demanding industrial and research applications, guaranteeing consistency and reliability.


Product Overview & Key Properties

Trimethyl Phosphite (CAS No. 121-45-9) is meticulously produced and rigorously tested to meet stringent quality standards. We ensure exceptional purity and consistent performance, essential for your complex chemical processes:

CAS No.:121-45-9
EC No.:204-471-5
Linear Formula: P(OCH₃)₃
Molecular Weight:124.08
Appearance:Transparent Liquid
Melting Point:−78 °C(lit.)
Boiling point111-112 °C(lit.)
Density:1.052 g/mL at 25 °C(lit.)
Solubility:Miscible with many organic solvents such as alcohols, ethers, and aromatic hydrocarbons. Reacts with water (hydrolyzes).
Flash Point:82 °F
Nature:Reactive organophosphorus compound. Can act as a reducing agent and a nucleophile. Susceptible to hydrolysis in the presence of water.
RIDADR:UN 2329 3/PG 3
Chemical Structure: cas-121-45-9.jpg

Our commitment to delivering high-purity Trimethyl Phosphite ensures a reliable and efficient component for your critical chemical syntheses, offering consistent quality for diverse industrial needs.


Primary Applications of Trimethyl Phosphite

Trimethyl Phosphite's unique reactivity and versatility make it an indispensable compound with applications across numerous industries:

  1. Chemical Intermediate:

    It is a fundamental building block in the synthesis of a wide array of organophosphorus compounds, including phosphonates, phosphonites, and other derivatives. These intermediates are crucial for various industrial applications.

  2. Ligand in Coordination Chemistry:

    Trimethyl Phosphite is widely used as a ligand in the synthesis of transition metal complexes. Its ability to coordinate with metals is essential in homogeneous catalysis, forming active catalyst species for various organic transformations.

  3. Reducing Agent:

    Due to its oxidation state, it acts as an effective reducing agent in many organic reactions, often used for deoxygenation, desulfurization, and other reduction processes.

  4. Arbuzov and Perkow Reactions:

    It is a key reactant in the Arbuzov reaction (for synthesizing phosphonates) and the Perkow reaction (for synthesizing enol phosphates), which are important methods for creating phosphorus-carbon bonds and functionalized olefins.

  5. Pesticide and Agrochemical Synthesis:

    It is used in the manufacturing of various pesticides and agrochemicals, particularly those with organophosphorus structures, contributing to crop protection and agricultural efficiency.

  6. Pharmaceutical Intermediates:

    Trimethyl Phosphite is utilized in the synthesis of certain pharmaceutical intermediates and active pharmaceutical ingredients (APIs), enabling the creation of complex drug molecules.

  7. Polymer Additives:

    It finds application as an antioxidant and stabilizer in certain polymer formulations, improving their performance and extending their lifespan.


Why Choose Aure Chemical for Your Trimethyl Phosphite Supply?

Aure Chemical is dedicated to providing superior chemical solutions and unparalleled customer support. By partnering with us for your Trimethyl Phosphite requirements, you benefit from:

  • Exceptional Purity & Reactivity: Our Trimethyl Phosphite is manufactured to stringent purity specifications, crucial for ensuring high yields and clean reactions in complex organic syntheses and industrial processes.

  • Reliable Global Supply Chain: We maintain a robust and efficient supply network, guaranteeing timely and secure delivery of this essential chemical to your facilities worldwide, adhering to all strict safety and regulatory standards.

  • Expert Technical Support: Our team of experienced chemists and specialists is readily available to offer comprehensive guidance on product application, safe handling procedures, and optimal storage conditions for Trimethyl Phosphite.

  • Commitment to Quality & Safety: We adhere to the highest industry standards for quality management, safety, and environmental responsibility across all our operations, ensuring peace of mind for our clients.

Choose Aure Chemical for a trustworthy and dependable supply of high-quality Trimethyl Phosphite. We're ready to support your most demanding and innovative industrial processes.


Packaging, Transportation & Storage Solutions

At Aure Chemical, we understand the critical importance of rigorous packaging, transportation, and storage for chemical products. To ensure the safety and integrity of the products you purchase, and to comply with international and national regulations, we provide the following general guidelines. Please note that each specific product has its own Safety Data Sheet (SDS), which contains the most detailed and authoritative information on packaging, transportation, and storage. We strongly advise you to consult and strictly adhere to the SDS for the respective product.

I. Packaging SolutionsII. Transportation SolutionsIII. Storage Solutions

We utilize various UN (United Nations) certified packaging containers based on the chemical nature, hazard class, and transportation requirements of our products. Common packaging types include, but are not limited to:

  • Steel Drums: Suitable for a wide range of liquid and solid products, especially flammable liquids.

  • Plastic Drums/Jerricans: Primarily used for corrosive liquids like acids and bases, or substances incompatible with metal.

  • Composite Drums: Combine the corrosion resistance of a plastic inner liner with the strength of a steel or fiber outer shell.

  • IBCs (Intermediate Bulk Containers): Often referred to as "Tote Bins" or "Cubic Tanks," these are used for larger volumes of liquid or solid dangerous goods, offering efficient storage and transport solutions.

  • Lined Bags or Fibre Drums: Primarily used for powdered or granular solids.

  • Glass Bottles: Typically used as inner packaging for small quantities of high-purity or specialized chemicals, requiring additional absorbent material and sturdy outer packaging (e.g., wooden crates, fiberboard boxes).

  • Steel Cylinders: Specifically designed and constructed as pressure vessels for the storage and transport of compressed, liquefied, or dissolved gases. Available in various capacities and pressure ratings, they are built to withstand high internal pressures and ensure the safe containment of gaseous substances.

All packaging undergoes stringent testing and complies with UN packaging performance levels to ensure product safety under normal transport conditions.

We strictly adhere to international and regional regulations for the transport of dangerous goods, ensuring full compliance and safety from our facility to your delivery point.

  • Sea Freight (IMDG Code): We strictly comply with the International Maritime Dangerous Goods (IMDG) Code, using UN-certified containers and ensuring proper dangerous goods declaration, marking, and stowage.

  • Air Freight (IATA DGR): We follow the International Air Transport Association (IATA) Dangerous Goods Regulations, which impose the strictest requirements for packaging, labeling, documentation, and quantity limitations.

  • Road/Rail Transport (ADR/RID & Local Regulations): We comply with the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR), the Regulations concerning the International Carriage of Dangerous Goods by Rail (RID), and specific national/regional regulations to ensure safe land transport.

Regardless of the transport mode, we will provide the following essential documentation:

  • Safety Data Sheet (SDS/MSDS): Provides product hazard information, safe handling guidelines, emergency measures, etc.

  • Dangerous Goods Declaration (DGD): Detailed information on dangerous goods, packing group, UN number, etc., for carriers and relevant authorities.

  • Other Necessary Certifications or Documents: Such as Certificates of Analysis (COA).

Upon receiving your shipment, please carefully verify the integrity of the packaging and the label information.

Proper storage is crucial for maintaining product quality and ensuring operational safety. The following are general storage principles:

  • Dedicated Areas: Dangerous chemicals should be stored in designated warehouses or areas that meet safety standards, away from residential zones and densely populated areas.

  • Segregated Storage: Strictly classify and segregate products according to their hazard class to prevent incompatible substances from being stored together and causing dangerous reactions (e.g., acids and bases separated, flammables away from oxidizers).

  • Good Ventilation: Storage areas should maintain good natural or forced ventilation to prevent the accumulation of hazardous gases or vapors.

  • Temperature & Humidity Control: Control the temperature and humidity of the storage environment according to the recommendations in the SDS. Avoid direct sunlight and extreme temperatures.

  • Fire and Explosion Prevention: Storage areas for flammable and explosive products should be equipped with adequate fire-fighting equipment, prohibit open flames, and ensure electrical equipment meets explosion-proof standards.

  • Clear Labeling: All storage containers and areas should have clear, conspicuous hazard labels and warning signs.

  • Spill Response: Storage areas should be equipped with appropriate spill response equipment and materials, and personnel should be familiar with emergency procedures.

  • Regular Inspections: Periodically inspect the integrity of storage containers to ensure no leaks or damage, and verify label information.

  • Away from Food and Drinking Water: Avoid cross-contamination.

Should you have any questions regarding the packaging, transportation, or storage of specific products, or require a customized solution, please do not hesitate to contact us.

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