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Triphenylphosphine oxide 791-28-6

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Unit Price: Get Latest Price
CAS No.:

791-28-6

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Shanghai

Brand:

Zentrachem

Packaging:

25kgs in drum

Price valid (until):

2025-12-20

Company Type:
Trader
Location:
China
Qualification:
Main Products:

pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

  • Product Description

  • Seller Information

  • Description


      Product Detail  


    Shop 1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate-Detailed Image 1

    Melting point  150-157 °C(lit.)
    Boiling point  360 °C
    bulk density 400-450kg/m3
    density  1,212 g/cm3
    vapor pressure  <1 hPa (50 °C)
    Fp  180 °C
    storage temp.  Store below +30°C.


    form  Crystalline Powder or Flakes
    color  White to pink-brown


     Capability 


     we are capable of:


    1) quick quotation, normally within 1-2 days

    2) full marketing research

    3) price control and quality(regulatory) control

    4) all stage support from sample, pilot, registration and commercial

    5) sourcing for prodcut which is very new or hard to find

    6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing


      Q&A  


    What are the MOQ and lead time?


    MOQ varies (high-value chemicals may negotiate to g-kg-level).

    Lead time typically 2-4 weeks, with expedited options upon request.


    How do we ensure product quality and compliance?


    We enforce a 3-step protocol:

    ① Source only from ISO-certified suppliers;

    ② Provide batch-specific COA/COO;

    ③ Dedicated team monitors global regulations (e.g., China NECIC, EU SCIP).


    Do we offer customized synthesis?


    Yes!

    We provide end-to-end solutions from R&D to scale-up production.

    Technical specs (e.g., purity, CAS#) and intended use documentation are required.


    How do we handle logistics and customs?


    We support CIF/FOB/DDP/DAP terms, partner with global logistics providers,

    and have in-house experts for HS code classification, hazardous material documentation, etc.


    How do we manage raw material price fluctuations?


    We mitigate risks via long-term contracts, multi-region sourcing,

    and futures hedging, supplemented with quarterly market analysis reports.


      About Us 


    Zentra Chemical, headquartered in Hangzhou, China, is aiming to be a global player in chemical trading and integrated solutions.

    Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, Herbal extracts and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance, with all stage support from sample, pilot, registration and commercial

    Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.

    Competitive Advantages

    • Strategic Location: Based in Hangzhou at the heart of Yangtze River Delta economic zone with global reach
    • Expert Team: International team of chemical engineers, trading specialists and supply chain professionals
    • Quality Commitment: Rigorous supplier selection and ISO-certified quality management systems
    • Sustainable Development: Partnering with eco-friendly manufacturers to promote green chemistry

    Vision & Mission
    Driven by the philosophy of “Chemistry Connects the Future,” Zentra Chemical strives to be a pioneering force in the global chemical sector. By bridging innovation, efficiency, and sustainability, we aim to build long-term partnerships that redefine industry standards and foster a greener, smarter chemical ecosystem.

    Global Reach, Local Expertise – Zentra Chemical is your trusted partner for chemical excellence.


      Why us


    • Supplier, distributor & marketer of chemicals with >20 yrs of experience, with Integrated sourcing solutions
    • Wide product range, We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more
    • We can solve your sourcing problems through our own or third party manufacturing in the most transparent way
    • We supply all stage support from sample, pilot, registration and commercial
    • Through selected pre-qualified partners under exclusive arrangements, we offer Contract manufacturing and custom synthesis, Kilo to Multi-ton scale production
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 1
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 2
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 3
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 4
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 5
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 6
    Shop 3-Fluorocinnamicacid 458-46-8-Detailed Image 7

    Shop 1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate-Detailed Image 9

    Shop 1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate-Detailed Image 10


      Excipients 


    L-Malic Acid, CAS 97-67-6
    DL-Malic Acid, CAS 617-48-1
    L(+)-Tartaric Acid, CAS 87-69-4
    DL-Tartaric Acid, CAS 133-37-9
    Potassium Bitartrate, CAS 868-14-4
    Aspartame, CAS 22839-47-0
    ISO, Halal, kosher certificates are all available.

    Certificates

    Basic Info
    Product Name:

    Triphenylphosphine oxide

    Other Name:

    Phosphine oxide,triphenyl-;Triphenylphosphine oxide;Triphenyl phosphorus oxide;Triphenylphosphine monoxide;TPPO;NSC 398;PP 560;(Diphenylphosphoroso)benzene;47027-44-1

    CAS No.:

    791-28-6

    Molecular Formula:

    C18H15OP

    InChIKeys:

    InChIKey=FIQMHBFVRAXMOP-UHFFFAOYSA-N

    Molecular Weight:

    278.28500

    Exact Mass:

    278.28

    EC Number:

    212-338-8

    UNII:

    Z69161FKI3

    NSC Number:

    398

    DSSTox ID:

    DTXSID2022121

    HScode:

    29310095

    Characteristics
    PSA:

    26.88000

    XLogP3:

    2.8

    Appearance:

    DryPowder

    Density:

    1.140 g/cm3

    Melting Point:

    156.5 °C

    Boiling Point:

    >360 °C

    Flash Point:

    180ºC

    Refractive Index:

    1.619

    Water Solubility:

    H2O: slightly soluble

    Storage Conditions:

    Store at RT.

    Vapor Pressure:

    <1 hPa (50 °C)

    Toxicity:

    LD50 orally in Rabbit: 685 mg/kg

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H302 Harmful if swallowed

    H412 Harmful to aquatic life with long lasting effects

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P273 Avoid release to the environment.

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    Storage

    none

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

    Location:

    Rm 301, Bld 2, Taohuahu Neighborhood Center, Hangzhou, China

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,100% TT in advance

    Average lead Time:

    14

    Total Employees:

    5-10

    Year of Establishment:

    2025

    Zentra Chemical, headquartered in Hangzhou, China, is aiming to be a global leader in chemical trading and integrated solutions.

    Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance.

    Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.


      Why us  


    Supplier, distributor & marketer of chemicals with >20 yrs of experience, with  Integrated sourcing solutions.

    Wide product range , We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more.

    We can solve your sourcing problems through our own or third party manufacturing in the  most transparent way.

    We supply  all stage support from sample, pilot, registration and commercial.

    Through selected  pre-qualified partners  under exclusive arrangements, we offer  Contract manufacturing and custom synthesis , Kilo to Multi-ton scale production.


      Capability  


    with hundreds of local manufacturers(pre-qualified), we are capable of:

    1) quick quotation, normally within 1-2 days;
    2) full marketing research;
    3) price control and quality(regulatory) control;
    4) all stage support from sample, pilot, registration and commercial;
    5) sourcing for prodcut which is very new or hard to find;
    6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing.

  • Country Product Purchase Quantity Date Posted
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