Alfa Aesar™ 15-Crown-5, 98%


Overview
Brand: Alfa Aesar™

Manufacturer Part Number: A12265-14

15-CROWN-5, 98+% 25G

UNSPSC: 12352005

Code: NEW

Additional Details:
Additional Details: CAS Number: 33100-27-5 Weight: 0.01000kg


Quantity 25g

Product Code. 11474973

Quantity Price
1 £ 62.65 / 25g
Estimated Shipment date
from Supplier 07-12-2016
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Description and Specification

Chemical Identifiers

Chemical Name or Material 15-Crown-5
CAS 33100-27-5
Molecular Formula C10H20O5
Formula Weight 220.27g/mol
MDL Number MFCD00005110
Beilstein 1618144
Synonym 1,4,7,10,13-Pentaoxacyclopentadecane

Specification

Boiling Point 150° to 155°C (0.5mmHg)
Quantity 25g
Flash Point >110°C (230°F)
Chemical Name or Material 15-Crown-5
CAS 33100-27-5
Assay 98%
Molecular Formula C10H20O5
Formula Weight 220.27g/mol
MDL Number MFCD00005110
Beilstein 1618144
Synonym 1,4,7,10,13-Pentaoxacyclopentadecane
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H302-H315-H319-H335
Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
RTECS Number SB0200000
TSCA TSCA

Applications
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.

Solubility
Miscible with organic solvents.

Notes
Hygroscopic. Moisture sensitive. Incompatible with strong oxidizing agents and strong acids.

Safety and Handling

Warning

GHS H Statement
H302-H315-H319-H335
Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.