1,4,10,13-Pentaoxacyclopentadecan

15-Crown-5 Struktur
33100-27-5
CAS-Nr.
33100-27-5
Bezeichnung:
1,4,10,13-Pentaoxacyclopentadecan
Englisch Name:
15-Crown-5
Synonyma:
1,4,7,10,13-PENTAOXACYCLOPENTADECANE;15-CROWN 5-ETHER;15-CROWN-5;15-Crown-6;Crownethers;crown ether;15-CROWN-5,99%;15-Crown-5 98%;JACS-33100-27-5;LEAD IONOPHORE V
CBNumber:
CB9707287
Summenformel:
C10H20O5
Molgewicht:
220.26
MOL-Datei:
33100-27-5.mol

1,4,10,13-Pentaoxacyclopentadecan Eigenschaften

Schmelzpunkt:
-20°C(lit.)
Siedepunkt:
93-96 °C/0.05 mmHg (lit.)
Dichte
1.113 g/mL at 20 °C (lit.)
Dampfdruck
0.5-0.82Pa at 20-25℃
Brechungsindex
n20/D 1.465(lit.)
Flammpunkt:
>230 °F
storage temp. 
room temp
Löslichkeit
Miscible with organic solvents.
Aggregatzustand
Liquid
Wichte
1.109
Farbe
Clear colorless to light yellow
Wasserlöslichkeit
MISCIBLE
Sensitive 
Hygroscopic
BRN 
1618144
Stabilität:
Stable. Incompatible with oxidizing agents, strong acids. Avoid exposure to water or moist air.
LogP
-0.9 at 20℃ and pH7.7
Oberflächenspannung
68.5mN/m at 1g/L and 20℃
CAS Datenbank
33100-27-5(CAS DataBase Reference)
NIST chemische Informationen
15-Crown-5(33100-27-5)
EPA chemische Informationen
1,4,7,10,13-Pentaoxacyclopentadecane (33100-27-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn,Xi
R-Sätze: 22-36/38-36-20/22-36/37/38-20/21/22
S-Sätze: 26-39-36
RIDADR  2810
WGK Germany  3
RTECS-Nr. SB0200000
10-21
Hazard Note  Irritant
TSCA  Yes
HazardClass  6.1(b)
PackingGroup  III
HS Code  29329995
Toxizität LD50 orl-rat: 1410 mg/kg DCTODJ 1,339,78
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
Sicherheit

1,4,10,13-Pentaoxacyclopentadecan Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R36/38:Reizt die Augen und die Haut.
R36:Reizt die Augen.
R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S39:Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

colourless liquid

Verwenden

15-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.

Definition

ChEBI: 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.

Allgemeine Beschreibung

15-Crown-5 is a crown ether generally used as a ligand in coordination chemistry because of its strong chelating property with certain alkali cations to form complexes. Some derivatives of 15-crown-5 are used as sensors and probes in different physical-chemical processes, phase-transfer reactions, and selective capture of ions for separation and transport.

Sicherheitsprofil

Moderately toxic by ingestion, skin contact, and intraperitoneal routes. A skin and eye . When heated to decomposition it emits acrid smoke and irritating fumes

läuterung methode

Dry it over 3A molecular sieves and distil it in a high vacuum. [Beilstein 19/12 V 252.]

1,4,10,13-Pentaoxacyclopentadecan Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


1,4,10,13-Pentaoxacyclopentadecan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 478)Lieferanten
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Hebei Mojin Biotechnology Co., Ltd
+8613288715578
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571-85586718 +8613336195806
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+86-371-66670886
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+86-0551-65418679 +86-18949832763
info@tnjchem.com China 2989 55
Zjartschem
+86-571-8723 8903 jocelynpan@zjarts.com
jocelynpan@zjarts.com CHINA 993 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3620 58
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29914 58

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