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4,13-Diaza-18-crown 6-ether

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4,13-Diaza-18-crown 6-ether Basic information

Product Name:
4,13-Diaza-18-crown 6-ether
Synonyms:
  • 1,4,10,13-TETRAOXA-7,16-DIAZACYCLOOCTADECANE
  • 1,10-DIAZA-18-CROWN-6
  • KRYPTOFIX 22 POLYMER (SILICA GEL) FOR SYNTHESIS
  • Diaza-18-crown-6,98%
  • Diaza-18-crown-6, 98% 500MG
  • KRYPTOFIX 22 FOR SYNTHESIS
  • 4,13-DIAZA-18-CROWN-6
  • 4,13-DIAZA-18-CROWN 6-ETHER
CAS:
23978-55-4
MF:
C12H26N2O4
MW:
262.35
EINECS:
245-965-0
Product Categories:
  • Azacrown Ethers
  • Crown Ethers
  • Functional Materials
  • Macrocycles for Host-Guest Chemistry
Mol File:
23978-55-4.mol
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4,13-Diaza-18-crown 6-ether Chemical Properties

Melting point:
111-114 °C(lit.)
Boiling point:
405.6°C (rough estimate)
Density 
1.0807 (rough estimate)
refractive index 
1.4560 (estimate)
storage temp. 
Store below +30°C.
form 
Shiny Crystalline Powder
pka
9.00±0.20(Predicted)
color 
Off-white
Water Solubility 
Soluble in water.
BRN 
609764
CAS DataBase Reference
23978-55-4(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-37/39-37
WGK Germany 
2
RTECS 
HM1650000
10
HS Code 
2934 99 90
Toxicity
LD50 orally in Rabbit: 3400 mg/kg

MSDS

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4,13-Diaza-18-crown 6-ether Usage And Synthesis

Chemical Properties

off-white shiny crystalline powder

Uses

1,4,10,13-Tetraoxa-7,16-diazacyclooctadecane is a crown ether, which can be used:

  • In the spectroscopic studies of its complex-forming reaction with iodine.
  • To prepare the ligand 7,16-bis(5-t-butyl-2-hydroxybenzyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane.
  • As a ligand in the study of zirconium facilitated hydrolysis of a dipeptide at neutral pH.

Purification Methods

Twice recrystallise it from *benzene/n-heptane, and dry it for 24hours under high vacuum [Weber & V.gtle Top Curr Chem (Springer Verlag, Berlin) 98 1 1981, D'Aprano & Sesta J Phys Chem 91 2415 1987].

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