52910
4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane
puriss., ≥99.0% (T)
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About This Item
Empirical Formula (Hill Notation):
C18H36N2O6
CAS Number:
Molecular Weight:
376.49
EC Number:
245-962-4
UNSPSC Code:
12350000
PubChem Substance ID:
Beilstein/REAXYS Number:
620282
MDL number:
InChI key
AUFVJZSDSXXFOI-UHFFFAOYSA-N
InChI
1S/C18H36N2O6/c1-7-21-13-14-24-10-4-20-5-11-25-17-15-22-8-2-19(1)3-9-23-16-18-26-12-6-20/h1-18H2
SMILES string
C1COCCN2CCOCCOCCN(CCO1)CCOCCOCC2
grade
puriss.
assay
≥99.0% (T)
mp
68-71 °C (lit.), 69-73 °C
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Direct analysis of Kryptofix 2.2.2 in 18FDG by gas chromatography using a nitrogen-selective detector.
R A Ferrieri et al.
Nuclear medicine and biology, 20(3), 367-369 (1993-04-01)
Ying Ma et al.
Nuclear medicine and biology, 29(1), 125-129 (2002-01-12)
A high-performance liquid chromatography-tandem mass spectrometric method (LC/MS/MS) was developed and validated for the quantitative analysis of Kryptofix (K-222) in the radiopharmaceuticals of 2-deoxy-2-[(18)F] fluoro-D-glucose (2-[(18)F]FDG) and 3-(3-((3-fluoropropyl)thio)-1,2,5-thiadiazol-4-yl)-1,2,5,6-tetrahydro-1-methylpyridine (FPTZTP). With an internal standard, the limit of quantitation for K-222 was
Jeff E Prest et al.
Journal of chromatography. A, 1260, 239-243 (2012-09-20)
This work shows how the inclusion of cryptand 222 as a leading electrolyte additive in isotachophoresis affects the electrophoretic mobilities of alkali metal cations. Using isotachophoresis the separation of alkali metals can be difficult due to the similar electrophoretic mobilities
Dynamers at the solid-liquid interface: controlling the reversible assembly/reassembly process between two highly ordered supramolecular guanine motifs.
Artur Ciesielski et al.
Angewandte Chemie (International ed. in English), 49(11), 1963-1966 (2010-02-06)
S M Moerlein et al.
International journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes, 40(9), 741-743 (1989-01-01)
Radiopharmaceutical solutions of 2-[18F]fluoro-2-deoxy-D-glucose (2-[18F]FDG) prepared via an aminopolyether-supported nucleophilic-substitution mechanism were analyzed for contaminant 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo-[8,8,8]-hexacosane (Kryptofix 2.2.2). Washing the C18-immobilized [18F]fluoro-tetraacetylated intermediate with 10 mL 0.1 M HCl was found to remove impurity Kryptofix 2.2.2 from the final product.
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