1,4,7,10-Tetraoxacyclododecan
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1,4,7,10-Tetraoxacyclododecan Eigenschaften
- Schmelzpunkt:
- 16 °C (lit.)
- Siedepunkt:
- 61-70 °C/0.5 mmHg (lit.)
- Dichte
- 1.089 g/mL at 25 °C (lit.)
- Brechungsindex
- n
20/D 1.463(lit.)
- Flammpunkt:
- >230 °F
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- Aggregatzustand
- Liquid After Melting
- Wichte
- 1.115 (20℃)
- Farbe
- Clear colorless to slightly yellow
- Wasserl?slichkeit
- MISCIBLE
- Sensitive
- Air Sensitive
- BRN
- 1363064
- CAS Datenbank
- 294-93-9(CAS DataBase Reference)
- NIST chemische Informationen
- 12-Crown-4(294-93-9)
- EPA chemische Informationen
- 1,4,7,10-Tetraoxacyclododecane (294-93-9)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher | T+,Xn,Xi | ||
---|---|---|---|
R-S?tze: | 26-36/37/38-20/21/22 | ||
S-S?tze: | 28-36/37-45-36-26 | ||
RIDADR | UN 2810 | ||
WGK Germany | 3 | ||
RTECS-Nr. | XF0550000 | ||
F | 3-9-23 | ||
TSCA | Yes | ||
HazardClass | 6.1 | ||
PackingGroup | III | ||
HS Code | 29329995 | ||
Toxizit?t | LD50 oral in rat: 2830mg/kg |
Bildanzeige (GHS) | |||||||||||||||
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Alarmwort | Achtung | ||||||||||||||
Gefahrenhinweise |
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Sicherheit |
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1,4,7,10-Tetraoxacyclododecan Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R26:Sehr giftig beim Einatmen.R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
clear colorless to slightly yellow liquid afterVerwenden
12-Crown-4 can be used as:- A promoter in the synthesis of poly(diethylsiloxane) (PDES) from monomer hexaethylcyclotrisiloxane using NaOH as a catalyst via anionic ring-opening polymerization.
- As an additive in the preparation of triarylmethane derivatives by palladium-catalyzed cross coupling reaction of aryl bromides with diarylmethane derivatives.
- A phase transfer catalyst in organic synthesis.
Definition
ChEBI: A crown ether that is cyclododecane in which the carbon atoms at positions 1, 4, 7 and 10 have been replaced by oxygen atoms.Allgemeine Beschreibung
12-Crown-4 is a crown ether generally used as a ligand in coordination chemistry. It is also known as lithium ionophore because of its strong chelating property specific to lithium cation.l?uterung methode
The distilled crude product has to be recrystallised from pentane at -20o to remove acyclic material. It is then dried over P2O5. It complexes Li. [Anet et al. Acta Chem Scand 27 3395 1973, Beilstein 19/11 V 334.]1,4,7,10-Tetraoxacyclododecan Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1,4,7,10-Tetraoxacyclododecan Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 225)Lieferanten
Firmenname | Telefon | Land | Produktkatalog | Edge Rate | |
---|---|---|---|---|---|
Guangzhou CATO Research Chemicals Inc. | +86-020-81960175-617 +8615602392859 |
Intermediate@cato-chem.com | China | 8047 | 58 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 18751 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21634 | 55 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32957 | 60 |
Shanghai Zheyan Biotech Co., Ltd. | 18017610038 |
zheyansh@163.com | CHINA | 3619 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29880 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28172 | 58 |
Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8618959220845 |
sales@amoychem.com | China | 6383 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39894 | 58 |
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 |
joe@yuhengpharm.com | CHINA | 21142 | 58 |
294-93-9(1,4,7,10-Tetraoxacyclododecan)Verwandte Suche:
Cyclododecan
1,4,7-Trioxa-10-azacyclododecan
1,4,7,10-Tetraoxacyclododecan-2-methanol
4,10-Dioxa-1,7-diazacyclododecan
10-Methyl-1,4,7-trioxa-10-azacyclododecan
1,4,7,10-Tetraoxacyclododecan
2,2-Dimethyl-1,4,7,10-tetraoxacyclododecan
- LITHIUM IONOPHORE V
- CROWN ETHER/12-CROWN-4
- Eoct
- Ethylene oxide cyclic tetramer
- 1,4,7,10-TETRAOXYCYCLODODECANE
- 12-CROWN-4
- 1,4,7,10-Tetraoxacyclododecane, 12-Crown-4
- 12-Crown-4,97%
- CROWN ETHER/12-CROWN-4 FOR SYNTHESIS
- 12-Crown-4 Cyclic tetraMer of ethylene oxide which is specific for the lithiuM cation., 98%
- 12-Crown-4(1,4,7,10-Tetraoxacyclododecane)
- 12-Crown 4-Ether >
- 294-93-9 12-Crown-4
- Crown
- 1,4,7,10-TETRAOXACYCLODODECANE
- 12-CROWN 4-ETHER
- 12 C 4
- 12C4
- 12-C-4
- 294-93-9
- 294-93-6
- Chelation/Complexation Compounds
- Macrocycles for Host-Guest Chemistry
- Crown Ethers
- Synthetic Reagents
- Crown Ethers
- Functional Materials
- Macrocycles for Host-Guest Chemistry