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Perfluoro alkylsulfonyl ketone silane
Tetraethylammonium-perfluoroctylsufonate
Perfluoroalkylsulfonyl Quaternary Ammonium Salt
Perfluorootanesulfonate amine
Potassium Perfluorobutanesulfonate
Potassium perfluorooctanesulfonate
Perfluorotributylamine
Perfluorobutanesulfonyl fluoride
Perfluorooctanesulfonyl nonionic surfactant
N-ethyl perfluoro-octane-sulfonamide
Perfluorooctanesulfonyl fluoride
1H,1H,2H,2H-Perfluorodecyltriethoxysilane
(1H,1H,2H,2H-Heptadecafluorodecyl)trichlorosilane
3-(Perfluorohexyl) propanol
3-(Perfluorobutyl) propanol
Perfluorotetradecane
Perfluorododecane
Perfluorohexyl ethyl pentyl ether
Perfluorohexyl ethyl propyl ether
1H,1H,2H,2H- Perfluoroalkanethiol
1H,1H,2H,2H- Perfluorododecanethiol
1H,1H,2H,2H- Perfluorodecanethiol
1H,1H,2H,2H-Perfluorooctanethiol
Perfluorodecyl ethane
Perfluorooctyl ethane
Perfluorohexyl ethane
Perfluorobutyl ethane
Perfluoro-C8-14-alk-1-eny
2-(Perfluoroalkyl)ethyl methacrylate
Perfluoroalkylethyl acrylate
Perfluoro-C8-14-alkylalcohols
Perfluoro-C2-18-alkylethyl iodides
Perfluorooctyl iodide
Perfluorobutyl iodide
1-Iodoperfluoro-C6-12-alkanes
1,1,2,2-Tetrafluoroethyl methyl ether
Pentadecafluorooctanoic acid
perfluorohexane-1-sulphonic acid
Perfluoroacetyl fluoride
Perfluoro-(2,5-dimethyl-3,6-dioxanonanal)
Perfluoro(4-methyl-3,6-dioxaoct-7-ene)sulfonyl flu
Pentafluoroethyl trifluorovinyl ether
Perfluoro-2,5-dimethyl-3,6-dioxanonanoic acid
Perfluorotriethylamine
(HEPTADECAFLUORO-1,1,2,2-TETRAHYDRODECYL)TRIMETHOX
Perfluorododecyl iodide
Perfluorodecyl iodide
Perfluoro-1-iodohexane
1,1,2,2-Tetrahydroperfluoro dodecanol
1H,1H,2H,2H-Perfluoro-1-decanol
3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluoro-1-octanol
1H,1H,2H,2H-Perfluorohexan-1-ol
1-Iodo-1H,1H,2H,2H-perfluorotetradecane
1,1,2,2-Tetrahydroperfluorododecyl iodide
1H,1H,2H,2H-1-Iodoperfluorodecane
1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-iodoocta
1H,1H,2H,2H-Perfluorohexyl iodide
1-bromohenicosafluorodecane
PERFLUOROOCTYL BROMIDE
1-BROMOPERFLUOROHEXANE
1-BROMONONAFLUOROBUTANE
Perfluorooctane
2-Perfluorododecylethyl methacrylate
2-(Perfluorodecyl)ethyl methacrylate
2-(Perfluorooctyl)ethyl methacrylate
2-(Perfluorohexyl)ethyl methacrylate
2-(Perfluorobutyl)ethyl methacrylate
1,1,2,2-Tetrahydroperfluorotetradecyl acrylate
2-(Perfluorodecyl)ethyl acrylate
2-(Perfluorobutyl)ethyl acrylate
(Perfluorododecyl)ethylene
(Perfluorodecyl)ethylene
1H,1H,2H-Perfluoro-1-decene
(Perfluorohexyl)ethylene
(Perfluorobutyl)ethylene
Perfluorohexylethyl Acrylate
N-fluorobenzenesulfonamide
Perfluoroalkyl phosphate
Perfluorotripropylamine
Perfluorooctanesulfonamide
Fipronil
 

Products

14187-32-7

Product : dibenzo-18-crown-6

Cas No. : 14187-32-7

Assay. : 98%

Information :

                                                        Dibenzo-18-crown-6    


CAS no: 14187-32-7
Assay: 98%
Appearance: red powder
Molecular formula: C20H24O6
Molecular weight: 360.4
Melting point: 160~163 degree
Solubility Water :Slightly soluble
Packing type: 500g bottled


Application:Crown Ether is a macrocyclic polyether whose structure contains hydrogen, carbon and oxygen atoms. Each oxygen atoms are confined between two carbon atoms and exhibits a conformation with a hole (accordingly called "crown"). The common names of Crown Ethers have a prefix to designate the total number of atoms in the cycle and a suffix to designate the number of oxygen atoms in the cycle. For example, 15-crown-5 is composed of 15 atoms in the cycle, 5 of which are O and 10 of which are C.

As an ether, crown ethers are soluble in non-polar solvents. They are capable of strong solvency binding cations in their central cavity. The exterior of the ring is hydrophobic. The size of the interior central cavity, fused ring system, and side chains and functional groups determine the solvency capacity of the cation and the power of hydrophobic.
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