In the international market, we have many years of production experience, and 18 Crown 6 Ether 9 , industrial crown ether, DB18C6 products are exported to dozens of countries and regions around the world. The three indicators of sales, taxation and export value are among the best in the industry for many years.Our eternal pursuits are the attitude of 'regard the market, regard the custom, regard the science' and the theory of 'quality the basic, trust the first and management the advanced' for PTC 12 Crown ether 4. We are a leading export company based in China. We have strong technical force, advanced processing equipment, and complete production and testing equipment. We are committed to providing customers with powerful, innovative, and customized solutions to help them solve business problems and achieve success. Our team is composed of high-quality professional talents with years of industry experience, specializing in providing innovative solutions and ensuring customer satisfaction. We have established a quality management system: focus on customers and improve continuously. We are based on the core concept of technical specialization, diversified services, and fine integration of production and sales to meet customer needs.
  • 12- Crown Ether -4
    12-Crown-4 (12-crown-4) is an organic compound belonging to the crown ether family with a molecular formula of C8H16O4 and a molecular weight of 176.21 g/mol. Crown ether is a class of
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  • Tetrapropylammonium Bromide
    Tetrapropylammonium Bromide 99.0% (CAS 1941-30-6) is mainly used as a phase transfer catalyst for organic synthesis and a molecular sieve template agent.
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  • Tetrabutylammonium Bromide
    Tetrabutylammonium Bromide 99.0% (CAS 1643-19-2) is a widely used phase transfer catalyst, commonly used in organic synthesis, esterification reactions, alkylation reactions, and other fields. Our
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  • Tetrabutylammonium Chloride 95%
    Tetrabutylammonium chloride (TBACL) is a quaternary ammonium compound. The form ₆ was C₁₆H₃ ClN and its molecular weight was approximately 277.92 g/mol. It has certain hygroscopicity and is easily
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  • Tetrabutylammonium Tetrafluoroborate
    Tetrabutylammonium tetrafluoroborate (CAS 429-42-5 ), also known as TBATFB, is an organic chemical compound with the formula C₁₆H₃₆BF₄N. It is a quaternary ammonium salt with solubility in water and
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  • Tetrabutylammonium Tribromide
    Tetrabutylammonium tribromide (CAS 38932-80-8) is a stable orange non-toxic solid with a melting point of 69–75°C. It is insoluble in water but soluble in chloroform, dichloromethane, ethyl acetate,
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  • Triethylamine Hydrobromide
    Triethylamine hydrobromide (CAS 636-70-4) , Purity 99.0% min,it is a white crystalline solid that is stable at room temperature. It is strongly hygroscopic and soluble in water. Its aqueous solution
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  • Tetraethylammonium Hydroxide
    Tetraethylammonium hydroxide (CAS 77-98-5) is used as a phase transfer catalyst, a template agent for molecular sieve synthesis, a cleaning agent, and a deimpurity agent in the petroleum industry.
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  • Benzyltrimethylammonium Hydroxide
    Benzyltrimethylammonium hydroxide(CAS 100-85-6)with a content of 25%, It is commonly used as polymerization catalyst for synthesis of silicone rubber and other organosilicon products and
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  • 15- Crown Ether -5
    15-crown-5 is a chemical with a molecular formula of C10H20O5, a molecular weight of 220.26 g/mol, and a CAS number of 33100-27-5. It belongs to the category of crown ether compounds, which are named
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  • 18- Crown Ether -6
    18-crown-6 is an organic compound with the formula C12H24O6. It belongs to the macrocyclic ether class, characterized by a large ring in the molecular structure, with multiple oxygen atoms
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  • Dibenzo-18-crown-6
    Dibenzo-18-crown ether-6, specifically, is a ring structure composed of two benzene rings through 18 carbon atoms and 6 oxygen atoms, of which 6 oxygen atoms are located on the ring, spaced apart,
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Fluorous phase transfer catalysts: From onium salts to crown ethers...

Oct 1, 2008 · Fluorous quaternary ammonium and phosphonium salts, as well as fluorous macrocyclic ligands, such as crown and aza-crown ethers, have been gradually emerging as...

12-CROWN-4 (1,4,7,10-TETRAOXACYCLODODECANE)...

Crown compounds locks guest atoms in a solution and wrap around it. Crown ethers are used in PTC (phase-transfer catalysts) system and in encouraging the solubility of inorganic...

12-Crown-4 - NIST Chemistry WebBook...

Jan 2, 2010 · By formula: C 4 H 5 N 2 + + C 8 H 16 O 4 = (C 4 H 5 N 2 + • C 8 H 16 O 4) Bond type: Hydrogen bonds with polydentate bonding in positive ions...

12-Crown-4 ether assisted in-situ grown perovskite crystals for …...

May 1, 2022 · In this study, we develop a strategy of in-situ controlling the growth of the quasi-2D PCs. By introducing the molecule of the 1, 4, 7, 10-tetraoxetane (12-Crown-4) ether into the...

12-Crown-4 98 294-93-9 - MilliporeSigma...

12-Crown-4 is a crown ether generally used as a ligand in coordination chemistry. It is also known as lithium ionophore because of its strong chelating property specific to lithium cation....

Synthesis and structure of [K–(12-crown-4) [K–(12-crown-4)] …...

Here, we present a nine-atom tin cluster, Sn4−, crys- tallized with potassium countercations that are sequestered by the very small 12-crown-4 ether (12C4)....

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