15-Crown-5

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use Introduction

Product Name: 15-Crown-5
CAS No.: 33100-27-5
Chemical Name: 15-Crown-5
Synonyms: 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
Molecular Formula: C10H20O5
Formula Weight: 220.26
MOL File: 33100-27-5.mol

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15-Crown-5 Property

Melting point:: -20°C(lit.)
Boiling point:: 93-96 °C/0.05 mmHg (lit.)
Density: 1.113 g/mL at 20 °C (lit.)
vapor pressure: 0.5-0.82Pa at 20-25℃
refractive index: n20/D 1.465(lit.)
Flash point:: >230 °F
storage temp.: room temp
solubility: Miscible with organic solvents.
form: Liquid
color: Clear colorless to light yellow
Specific Gravity: 1.109
Water Solubility: MISCIBLE
Sensitive: Hygroscopic
BRN: 1618144
Stability:: Stable. Incompatible with oxidizing agents, strong acids. Avoid exposure to water or moist air.
LogP: -0.9 at 20℃ and pH7.7
Surface tension: 68.5mN/m at 1g/L and 20℃
CAS DataBase Reference: 33100-27-5(CAS DataBase Reference)
NIST Chemistry Reference: 15-Crown-5(33100-27-5)
EPA Substance Registry System: 1,4,7,10,13-Pentaoxacyclopentadecane (33100-27-5)

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Safety

Hazard Codes: Xn,Xi
Risk Statements: 22-36/38-36-20/22-36/37/38-20/21/22
Safety Statements: 26-39-36
RIDADR: 2810
WGK Germany: 3
RTECS: SB0200000
F: 10-21
Hazard Note: Irritant
TSCA: Yes
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 29329995
Toxicity: LD50 orl-rat: 1410 mg/kg DCTODJ 1,339,78

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word: Warning
Hazard statements: H302Harmful if swallowed

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 188832
Product name: 15-Crown-5
Purity: 98%
Packaging: 1g
Price: $23.5
Updated: 2024/03/01

Sigma-Aldrich

Product number: 188832
Product name: 15-Crown-5
Purity: 98%
Packaging: 5g
Price: $64
Updated: 2024/03/01

TCI Chemical

Product number: C0859
Product name: 15-Crown 5-Ether
Purity: >97.0%(GC)
Packaging: 5mL
Price: $55
Updated: 2024/03/01

TCI Chemical

Product number: C0859
Product name: 15-Crown 5-Ether
Purity: >97.0%(GC)
Packaging: 25mL
Price: $271
Updated: 2024/03/01

Alfa Aesar

Product number: A12265
Product name: 15-Crown-5, 98%
Packaging: 1g
Price: $19.65
Updated: 2024/03/01

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15-Crown-5 Chemical Properties,Usage,Production

use

15-crown-5 has also been used to isolate salts of oxonium ions. For example, from a solution of tetrachloroauric acid, the oxonium ion [H7O3]+ has been isolated as the salt [(H7O3)(15-crown-5)2][AuCl4].

Introduction

The single nitrogen-containing derivative of 15-crown-5 is called aza-15-crown-5; the prefix “mono” is unnecessary. When two or more nitrogen atoms are present, the standard prefixes di-, tri-, etc. are applied. The term “monoazacrowns” is used here to designate the class of macrocycles containing a single nitrogen in combination with oxygen atoms as the macrocyclic donor array.

Chemical Properties

colourless liquid

Uses

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.

General Description

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.

Safety Profile

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

Purification Methods

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

15-Crown-5 Preparation Products And Raw materials

Raw materials

Preparation Products

METHYL 3-((PIPERIDIN-4-YL)METHYL)BENZOATE 4-((1-(TERT-BUTOXYCARBONYL)PIPERIDIN-4-YL)METHYL)BENZOIC ACID METHYL 4-((PIPERIDIN-4-YL)METHYL)BENZOATE 2-((1-(TERT-BUTOXYCARBONYL)PIPERIDIN-4-YL)METHYL)BENZOIC ACID 18-Crown-6 3-((1-(TERT-BUTOXYCARBONYL)PIPERIDIN-4-YL)METHYL)BENZOIC ACID 1-Triacontanol Chlorfluazuron METHYL 2-((PIPERIDIN-4-YL)METHYL)BENZOATE 4-Fluoroaniline

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View Lastest Price from 15-Crown-5 manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD

Product: 15-Crown-5 33100-27-5
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98%min
Supply Ability: 30tons/month
Release date: 2023-02-23

Hebei Chuanghai Biotechnology Co,.LTD

Product: 15-Crown-5 33100-27-5
Price: US $5.00-2.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10000kg
Release date: 2024-08-12

Hebei Weibang Biotechnology Co., Ltd

Product: 15-Crown-5 33100-27-5
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2023-02-22

33100-27-5, 15-Crown-5Related Search:

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