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  • 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 Hydrogensulfate
    Tetrabutylammonium Hydrogensulfate 99.0% (CAS 32503-27-8 ) ,is white to off-white solid, It is a commonly used phase transfer catalyst in organic synthesis chemistry such as halogen replacement
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  • Tetrabutylammonium Fluoride Trihydrate
    Tetrabutylammonium fluoride hydrate (CAS 87749-50-6) is available in two concentrations: 82% and 85%. It contains crystal water, its anhydrous base is 98%min. It is an important selective
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  • Tetrabutylammonium Perchlorate
    Tetrabutylammonium perchlorate, also known as TBAP, is a chemical compound represented by the formula C16H36NClO4. This inorganic substance consists of two components: the cation tetrabutylammonium
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  • Benzyl Trimethyl Ammonium Chloride
    Benzyl trimethyl ammonium chloride (CAS 56-93-9),Purity 99.0% min,is a quaternary ammonium salt compound commonly used as a phase transfer catalyst in chemical syntheses, facilitating heterogeneous
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  • Triethylamine Hydrochloride
    Triethylamine hydrochloride (CAS 554-68-7), with a purity of 99.0% min, is also known as hydrochloric acid triethylamine or N,N-diethylethylamine hydrochloride. It is an off-white crystalline solid.
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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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  • 1- Adamantyltrimethylammonium Hydroxide
    1-adamantyltrimethylammonium hydroxide, chemical formula C13H25NO, CAS number 53075-09-5, is an organic compound belonging to the quaternary ammonium salt class. It is easy to absorb carbon dioxide,
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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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Single crystal Raman studies of ethylene oxide cyclic tetramer ......

Jun 1, 1974 · Polarized single crystal Raman spectra of the following complexes of ethylene oxide cyclic tetramer (1,4,7,10-tetraoxacylcododecane, “EOc4”) were measured: LiBr·EOc4, LiCl· EOc4, CaCl 2...

Cationic Oligomerization of Ethylene Oxide - Nature...

ABSTRACT: The oligomerization of ethylene oxide (EO) was investigated with several cationic catalysts to find a method for producing cyclic oligomers (crown ethers). The reactions were......

Heterocyclic Crown Ethers with Potential Biological …...

Jan 21, 2022 · Macrocyclic polyethers are crown ethers; they possess various ethylene oxide units covalently linked in a macrocyclic ring either substituted or unsubstituted and form the simplest...

Crown Ether: Definition, Preparation, Uses - Science Info...

Jul 25, 2023 · CE are cyclic chemical compounds composed of a ring with many ether groups. The most prevalent CEs are ethylene oxide oligomers. The tetramer (n = 4), pentamer (n 5), and hexamer (n 6)...

Testicular atrophy from inhalation of ethylene oxide cyclic tetramer ......

DOI: 10.1016/0041-008X(74)90206-3 Corpus ID: 40025501; Testicular atrophy from inhalation of ethylene oxide cyclic tetramer. @article{Leong1974TesticularAF, title={Testicular atrophy from inhalation...

Single crystal Raman studies of ethylene oxide cyclic tetramer ......

Polarized single crystal Raman spectra of the following complexes of ethylene oxide cyclic tetramer (1,4,7,10-tetraoxacylcododecane, "EOc4") were measured: LiBr·EOc4, LiCl· EOc4, CaCl 2 ·EOc4·8H 2 O,...

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