15-Crown-5
33100-27-5C1COCCOCCOCCOCCO1VFTFKUDGYRBSAL-UHFFFAOYSA-N15-crown-5 is a saturated organic heteromonocyclic parent that is cyclopentadecane in which the carbon atoms at positions 1, 4, 7, 10 and 13 have been replaced by oxygen atoms to give a crown ether. It is a saturated organic heteromonocyclic parent and a crown ether.
33100-27-5DTXSID7067746CHEMBL156289CHEBI:32401Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
Warning
H302 (98.9%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P272, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 176 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Status: Active Update: 14-03-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/33251
Crown ether 15-crown-5: Does not have an individual approval but may be used under an appropriate group standard
A mild skin and moderate eye irritant; Causes tremor, convulsions, and weight loss in dermal lethal-dose studies of rabbits; Causes tremor, convulsions, weight loss, tetany, other changes in lungs, and other liver changes in intraperitoneal lethal-dose studies of rats; [RTECS] An irritant; Harmful by ingestion; [Aldrich MSDS] See 18-Crown-6.
15-Crown-5 ether
D*: Other compounds that may form peroxides
1 samples, >8 yrs, 1 ppm
Management of time-sensitive chemicals (JCHAS)
Verwenden15-Crown-5 is used as an efficient phase transfer catalyst and as a complexing agent. It is used to isolate oxonium ion (H7O3)+ salts especially from a solution of tetrchloroauric acid. It catalyzes the O-alkylation of the sodium salts of carboxylic acids in the penicillin and cephalosporin series, thereby facilitating esterification reaction without usage of acid. It is also used to facilitate the Williamson synthesis of ethers with hindered alcohols and sodium hydride. It is used with lithium aluminum hydride, for performing reduction reactions in hydrocarbon solvents. Further, it is involved in the Horner-Wadsworth-Emmons reaction to prepare stilbenes from aldehydes.
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DefinitionChEBI: A saturated organic heteromonocyclic parent that is cyclopentadecane in which the carbon atoms at positions 1, 4, 7, 10 and 13 have been replaced by oxygen atoms to give a crown ether.